Patent Leaderboard
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 76–100 of 114 patents

Patent #TitleCo-InventorsDate
5229235 Electrophotographic process using melted developer Masami Ohyama, Akio Yasuda, Koichi Kawasumi 1993-07-20
5116714 Image forming material with developer and photosensitive base on which an electrostatic latent image is formed Akio Yasuda, Koichi Kawasumi, Takao Tsuchiya, Kiyosuke Suzuki 1992-05-26
5108037 Fuel injection valve Yoshio Okamoto, Hiroyuki Ando, Youzou Nakamura, Mineo Kashiwaya, Eiji Hamashima 1992-04-28
5098016 Electromagnetic fuel injection valve Yoshio Okamoto, Yozo Nakamura, Kyoichi Uchiyama, Tokuo Kosuge, Akira Onishi +3 more 1992-03-24
5081016 Method for measuring the amount of polyamines in a biological sample Yuzo Hayashi 1992-01-14
5075735 Electrophotographic apparatus using developer that is changed from a solid to a liquid Takao Tsuchiya, Akira Shirakura, Koichi Kawasumi 1991-12-24
5073798 Electronic photography apparatus Akira Shirakura, Takao Tsuchiya, Koichi Kawasumi 1991-12-17
5018501 Electromagnetic fuel injection valve apparatus Ichiro Nakamura, Yoshio Okamoto, Hitoshi Konno 1991-05-28
5002333 Under frame of a motor vehicle Toshihisa Kenmochi, Hiroshi Suzuki 1991-03-26
4995559 Electromagnetic fuel injection valve Yoshio Okamoto, Yozo Nakamura, Kyoichi Uchiyama, Tokuo Kosuge, Akira Onishi +3 more 1991-02-26
4960849 Polyurethane from a copolyether of tetrahydrofuran and 3-alkyl tetrahydrofuran Kazuaki Okabe, Hideyuki Ishii, Shuichi Takeuchi 1990-10-02
4887769 Electromagnetic fuel injection valve Yoshio Okamoto, Yozo Nakamura, Kyoichi Uchiyama, Tokuo Kosuge, Akira Onishi +3 more 1989-12-19
4690511 Liquid crystal color display panel with mosaic color filter 1987-09-01
4659139 Roof structure for vehicular sun-roof devices Takahiro Hisaminato 1987-04-21
4647532 Method for determination of hydrogen peroxide by chemiluminescence analysis Noboru Mitsuhida, Makoto Andoh, Hakuji Matsumoto 1987-03-03
4643526 Liquid crystal display device having a resin-coated IC chip Eiichi Tajima, Masaaki Matsunaga, Toshihide Hirohara, Yoshio Iinuma, Naotake Ando +2 more 1987-02-17
4584003 Apparatus for treating dust-containing gas Noriyuki Oda, Tomohiro Morishita 1986-04-22
4583174 Electronically controlled fuel injection apparatus for internal combustion engine 1986-04-15
4573443 Non-synchronous injection acceleration control for a multicylinder internal combustion engine Kazuo Nakano, Akito Ohnishi 1986-03-04
4544129 Direct-acting servo valve Ken Ichiryu, Takashi Yamaguchi 1985-10-01
4542084 Method for forming a colored image Junetsu Seto, Kiyosuke Suzuki, Toshiaki Fukuma 1985-09-17
4529362 Servo pump for hydraulic systems Ken Ichiryu, Tadahiko Nogami 1985-07-16
4478193 Connector device for use in an internal combustion engine 1984-10-23
4471743 Fuel injection control system 1984-09-18
4470751 Apparatus for attaching front loader to vehicle Motomu Masuzawa, Mikio Ishida, Akio Hamada 1984-09-11