Japanese Patent Prosecution of PCT JP National Phase Applications after National Phase Entry


We welcome you to our "PCT national phase entry into Japan (JP)" website. Whether you are a first time visitor or a long time colleague, we appreciate that you have chosen our site as a resource for your intellectual property needs.

* Time limit for request for examination in Japan

3 years from the international filing date

* Amendment of claim, specification or drawing before 1st Office Action (OA)

No new matter shall be introduced into the patent application.

* Amendment of claim, specification or drawing after 1st Office Action (OA)

No new matter shall be introduced into the patent application.
Amendment for any change in subject matter must be made within the Unity of an invention.

* Time limit applicable for entry into Japanese national phase

* Necessary informations/documents for entry into Japanese national phase

For entering your PCT applications into the Japanese (JP) national phase, the following documents/information are required.

(1) Full name, full address and nationality of Applicant(s),
(2)...Read "Necessary informations/documents for entry into Japanese national phase"...

* Furnishing Japanese translation of the international patent application, time limit

* Amendments under PCT Article 19 and/or 34

* Change in the person, the name or the residence of the applicant and/or inventor

(A)Where said change during the international phase has not been reflected in the PCT pamphlet or in a Notification of the Recording of a Change (Form PCT/IB/306), ...Read more...

This site is presented by Hiroyuki Kurihara
Patent Attorney
IP-Litigation Patent Attorney
japanese patent attorney

Kurihara Patent Office
Kawashima Bldg.,
2-3-6 Kanda-Tacho, Chiyoda-ku
Tokyo 101-0046 Japan
Phone: +81-3-6206-0056
Fax: +81-3-6206-0057

A brief profile of Japanese registered patent attorney Mr. Kurihara


* Welcome to Patent Firm in Japan.

We are a patent and trademark office located in Tokyo, Japan, representing domestic and foreign clients on all continents of the globe in the field of intellectual property, in particular patents, trademarks, utility models, designs and trademarks as well as the prosecution, enforcement, defence and licencing thereof.

* Experience

Mr. Hiroyuki Kurihara is a Japanese registered Patent and Trademark Attorney and is a Member of AIPPI and JPAA. He is a patent attorney specializing and prosecuting Japanese and foreign patent applications.

Mr. Kurihara previously worked as a engineering scientist for a global manufacturer of electronic ceramics. He is currently active in patent prosecution and client counseling, with a particular emphasis in the chemical arts. Areas of particular interest include organic chemistry, inorganic chemistry, pharmaceuticals, polymers, adhesive compositions, films, metal alloys, and ceramics. Mr. Kurihara has also counseled clients on issues of patentability, infringement, validity and enforceability, principally in the pharmaceutical and polymer industry.

* Education

The University of Tokyo (B.Sc. Chemistry, 1995; M.Sc. Chemistry, 1997)

* Our Services

Organic and Inorganic Chemistry, Polymer Chemistry & Patent Litigation