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Our Team
- Sang-Bae Ahn Partner Patent Attorney
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02-6953-6142sbahn@yschang.co.kr
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- Bong-Sig Song
- Managing PartnerTechnology Transfer
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IntroductionManaging Partner Bong-Sik Song boasts a wealth of experience and expertise. He provides deep insight into domestic and international patent litigation and trials having worked as the director of the Korean Intellectual Property Office's Electrical and Electronic Examination Bureau, the Patent Trial and Appeal Board's Chief Judge, and for the Japanese Ministry of Trade, Industry and Energy. Recognized as a trustworthy partner in the fields of intellectual property protection and technology transactions, he was selected as Asia Leading Lawyer (2008, 2009).
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Experience· Korean Intellectual Property Office (Director, Semiconductor Examination Division; Director, Electrical and Electronic Examination Bureau) · Patent Trial and Appeal Board (Chief Judge) · Japanese Ministry of Trade, Industry and Energy (Visiting Researcher) · The Small and Medium Business Advisory Group of the Korea Chamber of Commerce and Industry (Advisory Member) · The Trade-Related Intellectual Property Rights Protection Association (Advisory Member) · Department of Venture Management, Korea Cyber University (Adjunct Professor) · Millennium CEO Course at Korea University Graduate School of Business (Instructor) · Author: "E-Commerce and Cyber Law", "Business Model Patent (translation)", several contributions and lectures at various universities and private organizations · Awards: Commendation from the Minister of Commerce, Industry and Energy, Presidential Commendation, Service Medal, University of Illinois President's Award, Seoul National University Graduate School of Public Administration Dean's Commendation · Technology Transfer Agent · Korean Patent Attorney's Association(KPAA)Education· Korea Military Academy · Yonsei Graduate School of Engineering · University of Illinois Graduate School
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Practice Areas
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- Sang-Bae Ahn
- Partner Patent Attorney
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IntroductionPatent Attorney Sang-Bae Ahn is the leader of the trademark team and provides professional services in various intellectual property fields, including trademarks, customs response, licensing, and trials/litigation, based on his experience advising prominent domestic and international companies. He has a broad international perspective as he serves as president of the Korean Trademark Society and as a member of the European Trademark Association and the International Trademark Association. Additionally, as a mediator of the Internet Address Dispute Mediation Committee, Mr. Ahn is playing a pioneering role in responding to new legal issues in the digital age. Clients who work with Mr. Ahn can expect to be able to further protect their intellectual property rights and increase the value of their business.
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Experience· Intellectual property rights advisor for Munhwa Broadcasting Corporation (MBC), Good People, and Aurora World · President of the Korea Trademark Association · Mediation member, Internet Address Dispute Mediation Committee · European Trademark Association (ECTA) · Executive Director of the Association for the International Association for the Protection of Intellectual Property (AIPPI) Korea Association · (Current) World Vision Advisor · International Trademark Association (INTA) · Auditor for the Asian Patent Attorneys Association (APAA) Korean Association · Korean Patent Attorney's Association(KPAA)Education· Kyung Hee University Department of Law, Graduate School of Law
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- Jung-Yeon Choe
- Partner Patent Attorney
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IntroductionPatent attorney Jung-Yeon Choe, as a member of the Asian Patent Attorneys Association, AIPPI, and the Japan Trademark Association, has a deep understanding of international intellectual property law and an extensive network of colleagues working in the field. She provides professional services in trademarks, licensing, and IP-litigation with a focus on strategically managing and protecting clients' intellectual property. In the changing global market, patent attorney Ms. Choe's insight and experience are a great asset in solving the complex problems faced by clients and maximizing the value of their intellectual property.
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Experience· Korean Standards Association · Asian Patent Attorneys Association(APAA) · International Association for the Protection of Intellectual Property(AIPPI) · Japan Trademark Association(JTA) · Korean Patent Attorney's Association(KPAA)Education· Yonsei University, Department of Korean Language and Literature (Minor in German Language and Literature) · Korea Open University Department of Japanese Studies (highest departmental honors) · Korea Open University Department of English Language and Literature (highest departmental honors) · Bachelor of Laws (LL.B.); self-taught
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- Sam Young Jung
- Partner Patent AttorCorporate Technology
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IntroductionSam Young Jung, a patent attorney, is in charge of patent applications, prior art searches, trials, and litigation in a wide range of technology fields, including electrical and electronics, semiconductors, computer software, and AI and ICT fields. He is a member of the Startup Business Support Center. As a managing patent attorney at the Startup Support Center, he provides necessary solutions so that companies can utilize various government support projects. Additionally, as a corporate technology valuation appraiser, Mr. Jung is not only effective at protecting his clients' intellectual property, but also provides outstanding guidance for its use.
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Experience· Albihns 2004 course in the fundamentals of European Patent Practice (Sweden) · Corporate Technology Valuation Appraiser (2014) · Korean Patent Attorney's Association (KPAA)Education· Seoul National University Department of Nuclear Engineering · California Western School of Law (L.L.M.)
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Practice Areas
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- Ho-Jin Kong
- Partner Patent Attorney
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IntroductionPatent attorney Ho-Jin Kong earned a doctorate in mechanical engineering and worked as a researcher at Seoul National University's Joint Research Institute for Precision Machinery Design and Samsung Electronics. Dr. Kong also worked as an examiner at the Machinery and Metal Construction Examination Bureau of the Korean Intellectual Property Office and accumulated in-depth examination experience in the fields of air conditioning, refrigeration machinery, and precision machinery. Dr. Kong specializes in patent applications, prior art searches, and trials for medical equipment, general machinery, air conditioning and refrigeration machinery, etc. He is able to clearly solve complex technical problems and provide strategic advice to secure clients' intellectual property rights and ensure business success.
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Experience· Special researcher at Seoul National University Precision Machinery Design Joint Research Institute · Principal Researcher at Samsung Electronics' Computer System Division · Examiner, Precision Machinery Review Division, Air Conditioning Machinery Review Department, · Korean Patent Attorney's Association(KPAA)Education· Seoul National University, B.S., Mechnical Engineering · Seoul National University, M.S., Mechnical Engineering · Seoul National University, Ph.D., Mechnical Engineering
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- Jin-Woo Park
- Partner AttorneyPartner Patent Attorney
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Introduction(Patent) Attorney Jinwoo Park handles all processes from application to litigation of intellectual property rights, as well as licensing and customs response work. Mr. Park's comprehensive experience provides valuable insight to clients. In addition, based on consulting and litigation experience in various fields other than intellectual property rights, he also provides a wide range of legal services related to intellectual property rights using his extensive knowledge of the Labeling and Advertising Act, the Personal Information Protection Act, the Trade Secret Protection and Unfair Competition Prevention Act, the Fair-Trade Act, and the Copyright Act.
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Experience· Advisor to the the Korea Association of Art & Design · Instructor at the Korea Information Security Industry Association · Advisor to Hankook Ilbo Co., Ltd. · Instructor at TIPA (the Trade-Related IPR Protection Association) · Member of JADELA (the Japan Design and Law Association ) · Korean Patent Attorney's Association(KPAA) · Korean Bar Association(KBA)Education· Kyung Hee University Department of Law · Yeungnam University Law School · Hitotsubashi University Graduate School of Law, Japan(JD) · Completed doctoral course at Kyung Hee University Law Schoo
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- Hee-Jung Jo
- Patent Attorney
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IntroductionPatent Attorney Hee-Jung Jo using her expertise in cutting-edge scientific fields excels in protecting our clients’ intellectual property rights. Ms. Jo is responsible for patent applications and registrations, prior art searches, and trials and lawsuits in the fields of chemistry, biotechnology, pharmaceuticals, and materials science. She is a trusted assistant to various companies and researchers in these fields. Ms. Jo has also accumulated extensive practical experience at leading domestic patent offices and is recognized for her expertise in clearly resolving complex intellectual property issues.
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Experience· Korean Patent Attorney's Association(KPAA)Education· Kyung Hee University Department of Chemistry
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- Yong-Hwan Kim
- Patent attorneytechnology credit rater, biotechnology investment analyst
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IntroductionPatent attorney Yonghwan Kim is an intellectual property expert in the pharmaceutical and biotechnology fields who demonstrates distinct expertise at the intersection of cutting-edge biotechnology and intellectual property law. Mr. Kim handles patent applications and registrations, prior art searches, and intermediate cases for domestic and foreign clients, provides consulting services specialized for startups, and moreover, contributes to value creation through intellectual property rights using his expertise as a technology credit rating and biotechnology investment analyst and his in-depth experience at Clarivate Analytics Korea (formerly Thomson Reuters) and Institut Pasteur Korea.
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Experience· Technology credit rater · Biotechnology investment analyst · Clarivate Analytics Korea (formerly Thomson Reuters) · Institut Pasteur Korea · Korean Patent Attorney's Association (KPAA)Education· Korea University, B.S., Biotechnology · Seoul National University, LL.M., Intellectual Property (in progress)
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- Jun-Seong Choi
- Patent Attorney
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IntroductionPatent Attorney Jun-Seong Choi, as an intellectual property expert equipped with extensive knowledge of both theory and practice, has considerable experience representing various domestic and international clients. His focus is on protecting customers' valuable intellectual property and maximizing its value through a wide range of work from patent applications to registration, prior art search, and interim case handling in various fields such as chemistry, polymers, materials, food, and biotechnology.
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Experience· Yonsei University University Industry Foundation · Nano-Bio System Laboratory · Passed the 56th Patent Attorney ExamEducation· Yonsei University Department of Chemical and Biomolecular Engineering
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- Dong-Ok Sohn
- AttorneyPatent Attorney
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Introduction(Patent) Attorney Dong-ok Son is a legal expert specializing in legal issues related to intellectual property rights, technology, and data. He worked in the U.S. e-discovery field at Deloitte Korea and gained extensive experience in intellectual property work for small and medium-sized businesses at SNU Engineering Consulting Center of Seoul National University’s College of Engineering. Mr. Sohn handles patent applications and registrations, prior art searches, and intermediate case processing in the electrical and electronic fields, as well as design and trademark application registration work, personal information protection, copyright, and sports entertainment legal issues. He also provides legal services covering in-depth intellectual property infringement litigation and general civil and criminal litigation.
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Experience· Deloitte Anjin Accounting Firm (Deloitte Korea) · Seoul National University, SNU Engineering Consulting Center · Korean Bar Association(KBA) · Korean Patent Attorney's Association(KPAA)Education· Seoul National University Department of Electrical · Yeungnam University Law School
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- Akira Iwamoto
- Regional Expert(Japan)
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IntroductionMr. Akira Iwamoto majored in law and uses his experience working as a civil servant in Japan and his long experience as a Korean correspondent for a Japanese newspaper as a basis to help Japanese customers understand the complex process of acquiring intellectual property rights in Korea while also providing them with professional advice and support. In doing so, he serves as a bridge for communication and understanding across languages and cultures. He pays close attention to meeting each customer's needs and does his best to ensure that our customers' intellectual property rights receive reliable legal protection.
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ExperienceEducation· Kinki University Faculty of Law School of Law
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Practice Areas
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- Jeon Se-Hwan
- Technical Advisor
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IntroductionTechnical Advisor Se-Hwan Jeon contributes to protecting customers' intellectual property rights and maximizing value using his knowledge and expertise in the pharmaceutical field. As a pharmacist, Mr. Jeon has a deep understanding of the fundamental theories of pharmacy as well as the practical processes of developing new drugs. Further, he has demonstrated great ability in solving various technical challenges in the pharmaceutical industry and serves as a reliable bridge between our customers and the patent registration of their inventions in the fields of pharmaceuticals/medicine, biotechnology, and medical devices.
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Experience· Dong-A Pharmaceutical Innovation DepartmentEducation· Sungkyunkwan University College of Pharmacy
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- Sung-Hwan Cho
- Patent Attorney
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IntroductionPatent Attorney Seonghwan Seong provides a wide range of professional patent services related to various technologies in the precision machinery field, including general machinery, compressors, air conditioning machinery, measuring equipment, and medical equipment. He was in charge of patent applications, handling of intermediate cases, trials and litigation at a domestic patent firm, and was also deeply involved in establishing intellectual property strategies linked to national support projects. His practical experience provides essential support to technology inventors and companies to effectively protect and commercialize their innovations.
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Experience· Korean Patent Attorney's Association(KPAA)Education· Hanyang University, Department of Mechanical Engineering
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- Martina Petra Marek
- Regional Expert (the United States and Europe)
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IntroductionWith over 20 years of experience across core and start-up industries in Korea, the UK, and Germany, Martina brings with her an exceptional intellectual curiosity and wealth of experience in business strategy and intellectual property protection. She applies her knowledge to guide clients in safeguarding their IP rights across Europe, North America, and Asia ensuring business resilience and continuity. With her expertise in the nuances of diverse cultural landscapes, she is able to provide clients with business solutions during intricate international collaborations, while ensuring clear communication, trust, and transparency throughout. Above all, Martina is committed to seeing clients meet their business goals among the complexities of expanding operations both in Korea and abroad.
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Experience·Hyundai Motor Group HQ,
·Daewoo Shipbuilding and Marine EngineeringEducation·MSc Social Anthropology, University of Edinburgh, UK
·BA (Hons) Korean Studies, University of Sheffield, UK -
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- Se Hyun Han
- Patent Attorney
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IntroductionHan Se Hyun, a patent attorney with a background in computer engineering and chemistry, leverages extensive technical knowledge to focus on protecting intellectual property and building strategic patent portfolios for diverse clients, including large corporations, SMEs, and startups. As an intellectual property expert with strengths in patent filing and portfolio strategy in advanced technology fields such as AI deep learning algorithms, blockchain, smartphones, displays, semiconductors, and ICT, she is dedicated to maximizing our clients' IP value by devising and proposing sophisticated patent strategies that enhance their competitive edge.
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Experience· Samsung Electronics · Korean Patent Attorneys Association (KPAA)Education· Samsung Electronics · Korean Patent Attorneys Association (KPAA)
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Practice Areas