Shin-Ei, P.C. is an IP professional corporation prescribed in the Japanese Patent Attorney Act, started its operation from 2012. (Original establishment was in 1990 with the name of "Miyakoshi Patent Office".)
Having a long-standing cooperative relationship with NGB Corporation, which is one of the largest leading providers of the intellectual property services worldwide, Shin-Ei, P.C. has continuously developed a reputation as a reliable intellectual property firm with a global awareness.
Many patent attorneys and support staffs have previously served as international patent specialists in NGB Corporation, helping multinational companies prosecute and procure patent rights worldwide. We provide clear perspectives regarding filing strategy and prosecution in view of the Japanese practice based on our experience and knowledge of patent systems worldwide. We offer competitive fee arrangements including translation fees, as compared with typical fixed standard fee schedules frequently offered in Japan.

Our Firm

Representative Partner: Jun Makino

Partner: Hideyuki Isobe

Total Staff: 21(13 attorneys and 8 staff members)


1990 Our firm was founded in 1990 as "Miyakoshi Patent Office".
1999 In 1999, our firm was changed to "Shin-Ei Patent Firm".
2012 In 2012, our firm was re-established as a patent professional corporation as prescribed by Patent Attorney Act, and our firm name was changed to "Shin-Ei Patent Firm, P.C."
2022 Our firm name was changed to "Shin-Ei, P.C.".