Firm News

Our patent attorneys, Masahiro Nanjo and Ayako Seta, have received a favorable decision at the Supreme Court in the case pertaining to the invalidation trial request against Japanese Patent No. 3,068,858.

In collaboration with other attorneys, our patent attorneys, Masahiro Nanjo and Ayako Seta, has been representing the patent holders in the case pertaining to the invalidation trial request against Japanese Patent No. 3,068,858. The Intellectual Property High Court had issued a decision (2017 (Gyo-ke) 10003; November 21, 2017) to revoke the Japanese Patent Office’s decision rejecting the request f […]


TOKYO ACTi International Patent and Trademark Office, p.c. is pleased to announce its relocation to expanded office space to accommodate its continuing growth realized by our clients and colleagues.

TOKYO ACTi International Patent and Trademark Office, p.c. is pleased to announce its relocation to expanded office space to accommodate its continuing growth realized by our clients and colleagues. We are all committed to earning your trust through our sincere, reliable attitude to every aspect of our work and to ensuring harmonious development and steady progress. We deeply appreciate your thoug […]


TOKYO ACTi International Patent and Trademark Office, p.c. is pleased to announce our Establishment as “Patent Professional Corporation”.

TOKYO ACTi International Patent and Trademark Office, p.c. is pleased to announce our Establishment as “Patent Professional Corporation”. In order to further ensure sustainability of our services and further enhance quality of our service, as from April 1st, 2016, we have established a legal entity (i.e. a “Patent Professional Corporation” as set forth in the Japanese Patent Attorney Act). The nam […]


Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association.

Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association.  The research theme is “Inventive Step – further research-” (chaired by Professor Ryu Takabayashi of Waseda University).  The term of appointment is from October 1st, 2014 to March 31st, 2016.


Masahiro Nanjo was awarded a certificate of appreciation from the Japan Patent Attorneys Association as having served on various public committee on intellectual property contributing to the development of the patent attorney system in Japan.

Masahiro Nanjo was awarded a certificate of appreciation from the Japan Patent Attorneys Association as having served on various public committee on intellectual property contributing to the development of the patent attorney system in Japan.


Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association.

Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association. The research theme is “Specification Endurable in Patent Enforcement” (chaired by Professor Ryu Takabayashi of Waseda University). The term of appointment is from Apr. 1st, 2013, to Sep. 30th, 2014. Related Info


Masahiro Nanjo was interviewed by Institute of Intellectual Property regarding its research on claim interpretation in the judgment on patentability. The research by Institute of Intellectual Property is commissioned by the Japan Patent Office.

Masahiro Nanjo was interviewed by Institute of Intellectual Property regarding its research on claim interpretation in the judgment on patentability. The topics discussed covered Supreme Court Decision on Lipase Case, claims specified by function, characteristic, etc, product-by-process claims, use claims. The research by Institute of Intellectual Property is commissioned by the Japan Patent Offic […]


Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association.

Masahiro Nanjo was appointed as a research committee member at the Central Research Institute of Intellectual Property of the Japan Patent Attorneys Association. The research theme is “Specification-related Issues” (chaired by Professor Ryu Takabayashi of Waseda University). The term of appointment is from Apr. 1st, 2012, to Jul. 31st, 2012. Related Info


In the invalidation trial (Case No. Invalidation 2010-800110) in which Masahiro Nanjo filed for the client, the JPO appeal board decided in favor of Masahiro Nanjo declaring that the claim of patent at issue is invalid for the lack of inventive step.

On June 29th, 2010 Masahiro Nanjo filed an invalidation trail (Case No. Invalidation 2010-800110). In this invalidation trial we asserted the invalidity of the claim 1 of the patent No. 4109165, which allegedly covers patentee’s commercial product, based on the lack of inventive step. An oral hearing was held on January 27th, 2011. On April 25th, the JPO appeal board in charge, which consisted of […]


Masahiro Nanjo was appointed as a member of Patent Attorneys Examining and Disciplinary Subcommittee, Industrial Property Council of Japan Patent Office, on Feb. 27th.

Masahiro Nanjo was appointed as a member of Patent Attorneys Examining and Disciplinary Subcommittee, Industrial Property Council of Japan Patent Office, on Feb. 27th and thus will serve as an examiner for Patent Attorney Examination 2011 (essay-type written and oral examinations). Related Info


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