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USPTO Patent Rankings Data through Sept 30, 2025
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Haruo Watanabe — 114 Patents

Sony: 59 patents #340 of 25,231Top 2%
Hitachi: 12 patents #3,472 of 28,497Top 15%
Toyota: 10 patents #2,889 of 26,838Top 15%
Honda Motor Co.: 9 patents #2,356 of 21,052Top 15%
HCHodogaya Chemical Co.: 3 patents #107 of 359Top 30%
TKToyo Boseki Kabushiki Kaisha: 3 patents #234 of 1,085Top 25%
Kubota: 3 patents #629 of 2,059Top 35%
HCHitachi Automotive Engineering Co.: 3 patents #60 of 314Top 20%
SCShindengen Electric Manufacturing Co.: 3 patents #67 of 307Top 25%
Yamaha: 2 patents #899 of 2,001Top 45%
CCCitizen Watch Co.: 2 patents #460 of 1,225Top 40%
MKMitsubishi Kasei: 2 patents #194 of 911Top 25%
LGLion Group: 2 patents #101 of 587Top 20%
MCMitsubishi Chemical: 1 patents #1,511 of 3,022Top 50%
Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
ACAsahi Glass Co.: 1 patents #1,233 of 2,251Top 55%
NCNippondenso Co.: 1 patents #1,765 of 3,479Top 55%
SCShowa Sangyo Co.: 1 patents #18 of 47Top 40%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Yokohama, JP: #74 of 480 inventorsTop 20%
Overall (All Time): #11,123 of 4,157,543Top 1%
114 Patents All Time

Issued Patents All Time

Showing 26–50 of 114 patents

Patent #TitleCo-InventorsDate
7727673 Cathode active material, method of manufacturing the same, and battery Tomoyo Ooyama, Masanori Soma 2010-06-01
7518783 Element for modulating area Eriko Matsui, Nobuyuki Matsuzawa, Akio Yasuda, Tadashi Mizutani, Takae Yamauchi +1 more 2009-04-14
7478618 Engine balancer system Hisayuki Hashimoto, Tomoji Suganami, Kazuhito Okazaki 2009-01-20
7462648 Recycle system for used plastic, method of reclaiming used ABS resin and reclaimed ABS resin Daisuke Hasegawa, Yasuhito Inagaki, Masahiro Sawaguchi 2008-12-09
7418938 Engine balancer system Hisayuki Hashimoto, Tomoji Suganami, Kazuhito Okazaki 2008-09-02
7270104 Engine balancer system Hisayuki Hashimoto, Tomoji Suganami, Kazuhito Okazaki 2007-09-18
7258904 Absorber and method for producing it Yasuhito Inagaki, Tsutomu Noguchi 2007-08-21
7163726 Laminate-controlling light autonomously and window using the same 2007-01-16
7119151 Antimicrobial agent and production process thereof Yasuhito Inagaki, Tsutomu Noguchi 2006-10-10
7047927 Engine balancer system Hisayuki Hashimoto, Tomoji Suganami, Kazuhito Okazaki 2006-05-23
7037981 High molecular weight flocculant Yasuhito Inagaki, Tsutomu Noguchi 2006-05-02
6984966 Switching power supply Kenichi Kubota, Kenichi Suzuki, Yutaka Sekine, Masaki Oshima, Hiroyuki Haga +4 more 2006-01-10
6977102 Absorber and method of manufacturing the absorber Yasuhito Inagaki, Tsutomu Noguchi 2005-12-20
6930154 Method for producing a high-molecular weight flocculant Yasuhito Inagaki, Tsutomu Noguchi 2005-08-16
6849201 Waste water treatment material, waste water treatment method, sludge dehydrating agent and sludge treatment method Yasuhito Inagaki, Shigeo Kiuchi, Takaaki Kano 2005-02-01
6723932 Water immersed electrical switch and method for preparation thereof Hiroshi Ohki, Yasuhito Inagaki, Tsutomu Noguchi 2004-04-20
6573336 Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment Yasuhito Inagaki, Shigeo Kiuchi, Takaaki Kano 2003-06-03
6558838 Non-aqueous electrolyte comprising an aluminum compound, cells using the electrolyte and a method for the electrodeposition of aluminum from the electrolyte Kazuhiro Noda, Kenichi Takahashi, Koichi Tanaka 2003-05-06
6545070 Composition of ionic substituted polystyrene and stabilizer(s) Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2003-04-08
6417288 Method of manufacturing polyelectrolyte Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2002-07-09
6380710 Photovoltaic-charged secondary battery device Ritsuko Inoue, Koichiro Hinokuma, Tomikazu Watanabe, Hiroshi Miyazawa 2002-04-30
6348545 Water-absorbing resin and manufacturing method Yasuhito Inagaki, Tsutomu Noguchi 2002-02-19
6274681 Method of manufacturing polyelectrolyte from styrene polymers Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2001-08-14
6261461 Method for treating waste water with a polymer aggregating agent Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2001-07-17
6210581 Method of separating flame retardant from plastic composition Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2001-04-03