Yoshiki KITANO(Mr.)


OSAKA Office


Education and Personal History
Mr. Kitano practices exclusively in the field of patent law, with a focus on life science, chemistry, pharmaceuticals, material science, and food materials. He has more than a decade of experience in drafting and prosecuting patent applications worldwide. Freedom to operate, patentability, validity, and non-infringement opinions form a significant part of his practice. He also received extensive training in U.S.-based IP law firms for over a year.


The technologies in which Mr. Kitano has been significantly involved include stem cells, iPS cells, antibodies, CAR-T cells, biosimilars, vaccines, nucleic acid sequences, siRNA, immunotherapy, enzymes, biomarkers, biological assays, microorganisms, DNA cloning and amplification techniques, genetic vectors, medical treatments, biofuels, new chemical compounds, pharmaceutical formulations, foods, beverages, flavor materials, inorganic catalysts, optical films, binding materials, and coating materials. He is particularly strong in the area of new uses for known compounds.


Backed by his overseas education and professional experience, Mr. Kitano is able to maintain close communication with international clients. He often travels overseas to meet clients and to attend international conferences.



Okayama University, B.S., Molecular Biology, Agricultural Science, 2003

Ryerson University, Canada, M.S., Enzymatic Engineering, Environmental Science, 2005



Japan Patent Attorneys Association (JPAA) from 2009

Passed U.S. Patent Agent Exam, 2009

JPAA International Activities Center Committee from 2014

JPAA AIPLA Project Team from 2014

Litigating Patent Attorney from 2012


February 2016

Japanese IP Law and Practice CIPA/ITMA Seminar in London, UK: Product-by-Process Claims after Supreme Court Decisions in 2015


December 2015

APAA Seminar: Novelty in the U.S. when Claimed Numerical Ranges Overlap with Prior Art


October 2015

AIPLA, IP Practice in Japan Pre-Meeting, US: Product-by-Process Claims: Supreme Court Decisions


October 2014

AIPLA, IP Practice in Japan Pre-Meeting, US: Post-Grant Opposition and Revisions to Examination Guidelines in Japan


November 2012

Saegusa Annual Seminar, Japan: Tips on Filing Amendments in the U.S.


October 2011

Seminar Hosted by LEYDIG, VOIT & MAYER, LTD., Chuo Sogo Law Office, and Saegusa & Partners, Japan: Comparative Studies on Purpose Limited Inventions in Japan and the U.S.