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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 51–75 of 114 patents

Patent #TitleCo-InventorsDate
6190575 Polymer electrolyte, a polymer aggregating agent prepared therefrom, and a disposal of waste water Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2001-02-20
6188197 Light charging type secondary battery unit having a photo-electric transducer being wound on a winding core and electrical equipment Tomikazu Watanabe, Koichiro Hinokuma, Ritsuko Inoue 2001-02-13
6169121 Method and apparatus for recycling styrene resin Tsutomu Noguchi, Mayumi Miyashita, Yasuhito Inagaki 2001-01-02
6143413 Magnetic recording medium and head cleaning tape Takahiro Kamei, Noriyuki Kishii, Atsuko Suzuki, Ken Kobayashi, Kenichi Kurihara +1 more 2000-11-07
6086783 Polymer electrolyte, a polymer aggregating agent prepared therefrom, and a disposal of waste water Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2000-07-11
6083647 Non-aqueous electrolyte comprising an aluminum compound and a method for the electrodeposition of aluminum from the electrolyte Kazuhiro Noda, Kenichi Takahashi, Koichi Tanaka 2000-07-04
6064580 Switching power supply Haruhiko Hatakeyama 2000-05-16
6022928 Method of manufacturing polyelectrolyte from styrene polymers Yasuhito Inagaki, Tsutomu Noguchi, Miyuki Kuromiya 2000-02-08
6020989 Laminated bodies and windows using them 2000-02-01
5779909 Method for recovering binder resin from ink ribbon, method for recovering dye from ink ribbon, apparatus for recovering ink according to said method, and method for producing recycled ink Hidemi Tomita, Huy Sam, Misao Kusunoki 1998-07-14
5761055 Driving pulse output limiting circuit Yoichi OKADA, Kenji Kawasaki, Takeshi Karii, Kenji Horiguchi, Yoshinori Kobayashi 1998-06-02
5750261 Magnetic recording medium comprising magnetic particles, binder, and a cure agent of isocyanurate trimers, pentamers and heptamers Kenichi Kurihara, Masafumi Ata, Masataka Matsute 1998-05-12
5615098 AC-DC converter Takuya Ishii, Yoshio Mizutani, Yoshinori Kobayashi, Yutaka Sekine, Satoshi Ikeda 1997-03-25
5615040 Self-responding laminated bodies, their production process and windows using the same 1997-03-25
5589038 Magnetic substance Masafumi Ata, Masataka Machida 1996-12-31
5506782 Operation management system for coke oven Yoshihiro Omae, Kunio Ishikawa, Yoshifumi Komatsu, Masaharu Someya, Michio Toyota +6 more 1996-04-09
5396396 Electronic apparatus and method for grounding electronic apparatus 1995-03-07
5374495 Developer for electrostatic electrophotography Masafumi Ata, Koichi Kawasumi, Yuji Yakura 1994-12-20
5360889 Soft polycarbonate resin Tsuyoshi Sato 1994-11-01
5354837 Low-temperature liquid urethane prepolymer 1994-10-11
5314168 Apparatus and method for controlling operation of quenching car/bucket for coke oven Yoshihiro Omae, Susumu Sonoki, Yoichi Kanemasa, Kazuo Sagara, Takashi Yoshimune +1 more 1994-05-24
5285027 Hydraulic elevator and a control method thereof Ichiro Nakamura, Tsuyoshi Ogasawara, Katsuharu Shuto, Eiichi Sasaki 1994-02-08
5265701 Elevator with means for controlling upward and downward movement of cage Tsuyoshi Ogasawara, Ichiro Nakamura, Masayuki Shigeta, Masakatsu Tanaka 1993-11-30
5253846 Apparatus and method for controlling operation of quenching car/bucket car for coke oven Yoshihiro Omae, Susumu Sonoki, Yoichi Kanemasa, Kazuo Sagara, Takashi Yoshimune +1 more 1993-10-19
5250420 Method and reagent for determination of dehydrogenase or its substrate Shigeki Asano, Yuzo Hayashi 1993-10-05