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Yoshiyuki KAJI Founder and Managing Partner
Dedicated
Technical Field
Mechanics
Practice Areas - Suit against trial decision
- Invalidation Trials
- Infringement Lawsuit
- Technical analysis and advice
Experience and Accomplishment After earning his Master's degree in Mechanical Engineering from Osaka University, Mr. Kaji was engaged in designing industrial machinery, at a steel maker company. Mr. Kaji started his career in the IP field when he was transferred to the IP department of the same company, where he was engaged in handling patent applications in and outside Japan and a number of patent litigations in US. He became a registered attorney in 1982, and founded Kaji Patent Law Firm in 1988. He was granted the Supplementary note of specific infringement lawsuit counsel in 2004. Mr. Kaji is also a member of Japan Patent Attorney’s Association, Kansai Tokkyo Kenkyukai, Licensing Executives Society Japan, Japan Intellectual Property Association, and The Asian Patent Attorney’s Association.
Makoto SUHARA Managing Partner
Dedicated
Technical Field
Electric and Electronics
Practice Areas - Prosecution of domestic and international patents and industrial designs
- Suit against trial decision
- Invalidation Trials
- Technical analysis and advice
Experience and Accomplishment After graduating from Tohoku University where he majored in Physics, Mr. Suhara worked at the development department of a manufacturing company. He then started to work at a patent law firm in 1990 and became a registered attorney in 1993. Mr. Suhara joined us and became a managing partner in 1998.
Rumi ICHIKAWA Junior Partner
Dedicated
Technical Field
Electric and Electronics
Practice Areas - Prosecution of domestic and international patents and industrial designs
- Suit against trial decision
- Technical analysis and advice
- Copyright Consultation
Experience and Accomplishment After graduating from Waseda University where she majored in electrical engineering, Ms. Ichikawa worked as a system consultant at a foreign computer company and foreign consulting company. She became a registered attorney in 2001, and joined us in 2002 and opened our Tokyo office in the same year. Ms. Ichikawa is a member of JPAA Copyright Committee of 2012, and 2013.
Toru KIMURA Junior Partner
Dedicated
Technical Field
Machanics
Practice Areas Prosecution of domestic and international patents and industrial designs
Experience and Accomplishment After earning Master's degree in Mechanical Engineering from Kyoto University, Mr. Kimura was engaged in designing of plant layouts for power and gas companies at a steel company. He became a registered attorney in 2002, and joined us in 2003 after working in a different IP law firm.
Koji SEGAWA Junior Partner
Dedicated
Technical Field
Machanics
Practice Areas - Prosecution of domestic and international patents
- Invalidation trials
- Correction trial
- Suit against trial decision
Experience and Accomplishment After earning Master's degree in Mechanical Engineering from Kobe University, Mr. Segawa was engaged in research and development of products at an electric company. He joined us in 2000, and became a registered attorney in 2003.
Tetsuya IKKAKU Junior Partner
Dedicated
Technical Field
Machanics
Practice Areas - Prosecution of domestic and international patents and industrial designs
- Technical analysis and advice
Experience and Accomplishment After earning Master's degree in Mechanical Engineering from Osaka University, Mr. Ikkaku was engaged in engineering of water treatment plants at a steel maker company. He joined us in 2006, and became a registered attorney in the same year. Mr. Ikkaku is also a registered professional engineer Jp (Water Supply & Sewerage) in 2007, and was granted the Supplementary note of specific infringement lawsuit counsel in 2010.
Takahiko TOMITA Associate
Dedicated
Technical Field
Electric and Electronics
Practice Areas - Prosecution of domestic and international patents, industrial designs, and trademark and Prosecutions
- Seminars, Consultation on Intellectual Property
- Technical analysis and advice
Experience and Accomplishment Mr. Tomita joined us in 2004, after earning Master's degree Physics from Hokkaido University, and became a registered attorney in the same year. In 2007, he opened our Hokkaido branch (Sapporo Tomita Office). Mr. Tomita became a vice-chairman of Hokkaido Branch of Japan Patent Attorney's Association since 2012, and a member of Commission on Intellectual Property Strategy in Hokkaido in 2013.
Risa WAKAMA Associate
Dedicated
Technical Field
Chemistry
Practice Areas Prosecution of domestic and international patents, industrial designs, and trademarks
Experience and Accomplishment Ms. Wakama joined us in 2006, after earning Master's degree in Material Science and Engineering from Osaka Prefecture University, and became a registered attorney in 2007.
Miho KAMIOKA Associate
Dedicated
Technical Field
Machanics
Practice Areas Prosecution of domestic and international patents and industrial designs
Experience and Accomplishment After graduating from Kobe University where she majored in Architecture and Civil Engineering, Ms. Kamioka was engaged in designing landscape at a landscape design company. She joined us in 2006, and became a registered attorney in 2007.
Kinuyo ARASHI Associate
Dedicated
Technical Field
Machanics
Practice Areas Prosecution of domestic and international patents and industrial designs
Experience and Accomplishment After earning Master's degree in construction engineering from Kobe University, Ms. Arashi has studied abroad and participated in an internship program. She joined us in 2001, and became a registered attorney in 2009. Ms. Arashi was also certified with Pre-first grade of Japanese english proficiency test known as "STEP" or "Eiken", in 2001.
Yoshihiro HOSOI Associate
Dedicated
Technical Field
Machanics
Practice Areas Prosecution of domestic and international patents and industrial designs
Experience and Accomplishment Mr. Hosoi joined us in 2008, after graduating from Osaka University where he majored in Engineering Science, and became a registered attorney in 2011.
Kazuhiro UCHIDA Associate
Dedicated
Technical Field
Electric and Electronics
Practice Areas Prosecution of domestic and international patents and industrial designs
Experience and Accomplishment After earning Master's degree in Electrical Engineering in from Osaka Prefecture University, Mr. Uchida was engaged in research and development in an electric-appliance manufacturer. He joined us in 2004, and became a registered attorney in 2012.
Masahiro TSUJI Associate
Dedicated
Technical Field
Machanics
Practice Areas - Prosecution of domestic and international patents and industrial designs
- Technical analysis and advice
Experience and Accomplishment After earning Master's degree in Engineering from Kyoto University, Mr. Tsuji was engaged in environment assessment at a construction consultation company. He then worked at a company of automobile industry, where he was engaged in development of crash safety simulation technology. Mr. Tsuji became a registered attorney in 2010, and joined us in 2013 after working at a different IP law firm. He was granted the Supplementary note of specific infringement lawsuit counsel in 2013.
Eriko FUJIKAWA Associate
Dedicated
Technical Field
Chemistry, Biotechnology
Practice Areas Prosecution of domestic and international patents
Experience and Accomplishment After earning her Master's degree in Agriculture from Hokkaido University, Ms. Fujikawa worked at a municipality. She became a registered attorney in 2013, and joined us in the same year.
Yong Ju KIM Korean Patent Attorney, Advisor
Dedicated
Technical Field
Electric and Electronics
Experience and Accomplishment After graduating from Konkuk University in South Korea, where he majored in electric engineering, Mr. Kim came to Japan to study electronic engineering in Kobe University. After earning his Doctor's degree in the university, he worked at Production Technology Center of Samsung SDI Co., Ltd., as a researcher. Mr. Kim also has experience as an examiner at Korea Patent Office, 4th Examination Bureau, Electronics Department, and was awarded a prize for Article from Power & Electronics Association of Korea, 2002. Mr. Kim currently runs an IP law firm in South Korea.

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