Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Masato Mikami — 36 Patents

FIFujifilm Business Innovation: 22 patents #322 of 5,238Top 7%
OLOlympus: 10 patents #461 of 3,097Top 15%
WCW.R. Grace & Co.-Conn.: 3 patents #242 of 1,045Top 25%
TIToray Industries: 1 patents #2,000 of 3,690Top 55%
Overall (All Time): #93,729 of 4,157,543Top 3%
36 Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
6969742 Method of producing a functional polymer particle Chisato Urano, Yoshihiro Inaba, Takako Kobayashi 2005-11-29
6914100 Method of producing a crosslinked polymer particle Chisato Urano, Yoshihiro Inaba, Takako Kobayashi 2005-07-05
6785035 Optical element, optical element composition and method for controlling stimuli-responsive polymer gel Takashi Uematsu, Akinori Komura, Hiroaki Tsutsui, Jun Kawahara, Ryojiro Akashi 2004-08-31
6780647 Sensor material, sensor and detection method for bio-substance Shoichiro Fujiwara, Takashi Uematsu, Ryojiro Akashi 2004-08-24
6413691 Electrophotographic toner, process for producing the same, electrophotographic developer, and process for forming image Katsumi Daimon, Norihito Fukushima, Chisato Urano, Takashi Imai, Jun Igarashi 2002-07-02
6203956 Electrophotographic toner and image-forming method Chisato Urano, Katsumi Daimon, Norihito Fukushima 2001-03-20
5932387 Charged member for electrostatic development and sleeve for electrostatic development Yasuo Yamamoto, Takeshi Agata, Kazuhiko Yanagida, Suk Kim 1999-08-03
5426154 Thermally reversible graft copolymer Yuichi Mori, Hiroshi Yoshioka 1995-06-20
5196099 Electrophoretic matrix and electrophoresis using same Yuichi Mori, Hiroshi Yoshioka 1993-03-23
5164057 Electrophoretic matrices and electrophoretic method using same Yuichi Mori, Hiroshi Yoshioka 1992-11-17
4936674 Apparatus and method for determining functions of cells Yasuo Ikeda, Kiyotaka Sakai, Ichiro Itagaki, Shoji Nagaoka 1990-06-26