Akihiro Ryuka

Akihiro Ryuka


Ryuka IP Law Firm


Shinjuku L Tower, 22nd Floor
1-6-1 Nishi-Shinjuku, Shinjuku-Ku
Tokyo 163-1522



E-mail Address:


Akihiro Ryuka

Areas of Expertise

Patents, Licensing & Franchising


Mr. Ryuka is a Japan patent attorney, certified to practice lP litigation in Japan and an attorney at law, California, USA and specializes in electonics, semiconductors, software, data communication, and radio communication. He founded RYUKA IP Law Firm in 1998 and expanded its practice areas to prosecution, licensing, litigation, opinions and custom surveillance in the field of Japanese patent, design and trademark law. 

Mr. Ryuka began his career as an electrical engineer of Canon Inc. Later, he joined Tani & Abe Patent Attorneys in Tokyo, where he prosecuted patent applications of foreign and domestic applicants including Canon Inc. From 1995 to 1998, Mr. Ryuka worked in Washington, DC office of US firm Cushman Darby & Cushman (now Pillsbury Winthrop Shaw Pittman LLP), where he mainly prosecuted patent applications for Japanese clients. While in the US he pased the US patent bar exam. At the same time, he established a patent firm in japan and a translation company in the US, the predecessors to RYUKA IP Law Firm, facilitating business for Cushman Darby & Cushman.

Since founding RYUKA IP Law Firm, he has lectured extensively in Japan and abroad on IP topics, has published numerous articles including detailing RYUKA's invention consulting services (Patent Visualisation), and visits clients and attends conferences in the US, Europe and Asia.

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