Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
AH

Akihiro Higuchi

DADaicel: 9 patents #24 of 523Top 5%
DIDaicel Chemical Industries: 2 patents #308 of 893Top 35%
SASucampo Ag: 1 patents #13 of 26Top 50%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Toyota: 1 patents #15,335 of 26,838Top 60%
KUKeio University: 1 patents #190 of 781Top 25%
ARAsahi Rubber: 1 patents #20 of 63Top 35%
Overall (All Time): #331,738 of 4,157,543Top 8%
14 Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12240961 Cellulose acetate resin composition Masaaki KUSUMOTO, Takafumi Kawasaki 2025-03-04
12157808 Cellulose acetate and cellulose acetate composition Hiroyuki Matsumura, Hiroki Taniguchi, Tomohiro HASHIZUME, Masaaki KUSUMOTO 2024-12-03
11981796 Cellulose acetate resin composition Masaaki KUSUMOTO, Takafumi Kawasaki 2024-05-14
11773239 Cellulose acetate and molded article Ikuhiro SUZUKI, Yuya ASHIDA 2023-10-03
11572457 Cellulose acetate and cellulose acetate composition Hiroyuki Matsumura, Hiroki Taniguchi, Tomohiro HASHIZUME, Masaaki KUSUMOTO 2023-02-07
11440973 Cellulose acetate, cellulose acetate composition, molded article, and film Yuya ASHIDA, Ikuhiro SUZUKI 2022-09-13
11066484 Cellulose acetate and method for producing cellulose acetate Naohiro Oyamada 2021-07-20
10927189 Cellulose acetate and producing method therefor Maiko Tsuda 2021-02-23
10875932 Cellulose acetate powder and method of producing cellulose acetate powder Takehiro Matsumoto 2020-12-29
9968566 Pharmaceutical composition for prophylaxis and/or treatment of corneal and conjunctival diseases or presbyopia containing stilbene compound as active ingredient Kazuo Tsubota, Kiyoshi Fukuhara 2018-05-15
8133990 6-position highly acetylated cellulose diacetate and process for producing the same 2012-03-13
7745615 Cellulose ester and production method thereof Shu Shimamoto 2010-06-29
6916869 Acrylic resin plastisol coating compound Hirofumi ETO, Osamu Sakai, Ayumi Takata, Yutaka Ohashi 2005-07-12
6852687 Method for inhibiting apoptosis Kazuo Tsubota 2005-02-08