Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Satoshi Yoshikawa — 141 Patents

Panasonic: 54 patents #185 of 21,108Top 1%
Sumitomo Electric Industries: 22 patents #886 of 21,551Top 5%
MMMitsubishi Motors: 14 patents #50 of 1,823Top 3%
STSun Patent Trust: 14 patents #50 of 106Top 50%
CLCentral Glass Company, Limited: 12 patents #57 of 968Top 6%
FIFujifilm Business Innovation: 5 patents #1,029 of 1,659Top 65%
YHYakult Honsha: 5 patents #33 of 410Top 9%
Kubota: 5 patents #404 of 2,059Top 20%
DIDaikin Industries: 3 patents #994 of 2,957Top 35%
FUFujifilm: 1 patents #3,076 of 4,519Top 70%
SVSovereign Peak Ventures: 1 patents #13 of 26Top 50%
SISumitomo Electric Device Innovations: 1 patents #123 of 208Top 60%
SSSumitomo Wiring Systems: 1 patents #1,603 of 2,615Top 65%
CCCemedine Co.: 1 patents #31 of 60Top 55%
TLToyo Kasei Kogyo Company Limited: 1 patents #26 of 53Top 50%
ATAutonetworks Technologies: 1 patents #723 of 1,079Top 70%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
AIArakawa Chemical Industries: 1 patents #47 of 130Top 40%
Kasai, JP: #5 of 5,842 inventorsTop 1%
Overall (All Time): #7,007 of 4,157,543Top 1%
141 Patents All Time

Issued Patents All Time

Showing 126–141 of 141 patents

Patent #TitleCo-InventorsDate
6235951 Method for producing 1,1,1,3,3-pentafluoropropane Fuyuhiko Sakyu, Yasuo Hibino, Yoshihiko Gotoh, Ryouichi Tamai 2001-05-22
6198010 Method for producing 1,1,1,3,3-pentafluoropropane Ryouichi Tamai, Fuyuhiko Sakyu, Yasuo Hibino, Yoshihiko Gotoh 2001-03-06
6111150 Method for producing 1,1,1,3,3,-pentafluoropropane Fuyuhiko Sakyu, Yasuo Hibino, Ryouichi Tamai, Yoshihiko Gotoh 2000-08-29
5983856 Intake system construction for internal combustion engine and manufacturing process of intake passage section of internal combustion engine Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Kenji Goto +5 more 1999-11-16
5913554 Intake system construction for internal combustion engine and manufacturing process of intake passage section of internal combustion engine Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Kenji Goto +5 more 1999-06-22
5836284 Intake system construction for internal combustion engine and manufacturing process of intake passage section of internal combustion engine Hideyuki Oda, Takashi Kawabe, Nobuaki Murakami, Katsunori Ueda, Kenji Goto +5 more 1998-11-17
5816215 Cylinder head for an in-cylinder injection spark-ignition type internal combustion engine Kazuhiro Geshi, Takashi Kawabe, Katsunori Ueda, Nobuaki Murakami, Hirokazu Komai 1998-10-06
5806482 In-cylinder injection internal combustion engine Kyoya Igarashi, Kenji Goto, Takashi Kawabe, Katsunori Ueda, Nobuaki Murakami +2 more 1998-09-15
5762042 Internal combustion engine Katsunori Ueda, Takashi Kawabe, Hideyuki Oda, Kenji Goto, Nobuaki Murakami 1998-06-09
5756869 Method of preparing hydrofluorocarbon Naoto Takada, Hideki Oshio 1998-05-26
5609139 Fuel feed control system and method for internal combustion engine Katsunori Ueda, Toyoaki Fukui 1997-03-11
5596968 Fuel injection control system and method for internal combustion engine Katsunori Ueda, Takashi Kawabe 1997-01-28
D377493 Piston Hideyuki Oda, Nobuaki Murakami, Katsunori Ueda, Kyoya Igarashi, Hiromitsu Ando +2 more 1997-01-21
5023175 Novel production process of hyaluronic acid and bacterium strain therefor Hideo Hosoya, Masayuki Kimura, Hiroshi Endo, Yoshio Hiraki, Shoji Yamamoto +2 more 1991-06-11
4996379 Method of preparing 1,1,1,2-tetrafluoroethane from 1,1-dichloro-1,2,2,2-tetrafluoroethane Hideki Oshio, Sadaharu Mishumi, Kiyoshi Yagii, Katsuyoshi Murata 1991-02-26
4910352 Method of preparing 1,1,1-trifluoro-2,2-dichloroethane from trifluorotrichloroethane Takeshi Kondo 1990-03-20