Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SI

Shigeki Iwanami — 59 Patents

Denso: 43 patents #62 of 11,792Top 1%
NSNippon Soken: 37 patents #11 of 1,540Top 1%
NCNippondenso Co.: 11 patents #131 of 3,479Top 4%
TIToyota Industries: 8 patents #117 of 955Top 15%
Toyota: 1 patents #15,335 of 26,838Top 60%
Overall (All Time): #40,733 of 4,157,543Top 1%
59 Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
5501584 Scroll type compressor having a passage from the suction chamber to a compression pocket Shinya Yamamoto, Kiyohiro Yamada, Tetsuhiko Fukanuma, Yasushi Watanabe, Shigeru Hisanaga +1 more 1996-03-26
5252032 Variable capacity swash plate type compressor Mikio Matsuda 1993-10-12
5078226 Power steering apparatus for a vehicle with yaw control Mitsuo Inagaki, Hideaki Sasaya 1992-01-07
4963074 Variable displacement swash-plate type compressor Masami Sanuki, Fumihiro Itoigawa, Akikazu Kojima, Mitsuo Inagaki, Masanori Yasuda +5 more 1990-10-16
4932843 Variable displacement swash-plate type compressor Fumihiro Itoigawa, Mitsuo Inagaki, Yoshiki Kurokawa, Akikazu Kojima 1990-06-12
4886423 Variable displacement swash-plate type compressor Mitsuo Inagaki, Hideaki Sasaya, Taro Tanaka, Akikazu Kojima 1989-12-12
4761125 Twin-shaft multi-lobed type hydraulic device Mitsuo Inagaki, Hideaki Sasaya, Hiromichi Nakano 1988-08-02
4650405 Scroll pump with axially spaced pumping chambers in series Mitsuo Inagaki, Hideaki Sasaya 1987-03-17
4616984 Sliding-vane rotary compressor with specific cylinder bore profile Mitsuo Inagaki, Kenji Takeda, Hideaki Sasaya, Eiichi Nagasaku 1986-10-14