Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Tsuyoshi Yamaguchi — 71 Patents

Panasonic: 10 patents #2,582 of 21,108Top 15%
ACAisin Aw Co.: 8 patents #229 of 2,011Top 15%
TIToyota Industries: 7 patents #209 of 1,610Top 15%
Toyota: 6 patents #4,786 of 26,838Top 20%
KCKonami Digital Entertainment Co.: 6 patents #31 of 611Top 6%
Sumitomo Electric Industries: 4 patents #6,367 of 21,551Top 30%
Canon: 3 patents #11,241 of 19,416Top 60%
KSKobe Steel: 3 patents #455 of 1,773Top 30%
DCDiamond Electric Mfg. Co.: 2 patents #8 of 50Top 20%
HSHitachi Seiko: 2 patents #22 of 106Top 25%
HMHitachi Via Mechanics: 2 patents #20 of 109Top 20%
ICIbiden Co.: 2 patents #335 of 730Top 50%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
NSNidec Seimitsu: 2 patents #10 of 28Top 40%
SCSanyo Seimitsu Co.: 2 patents #2 of 21Top 10%
DADaikyonishikawa: 1 patents #23 of 85Top 30%
NINidec: 1 patents #568 of 976Top 60%
DIDaikin Industries: 1 patents #1,764 of 2,957Top 60%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
ENEneos: 1 patents #95 of 206Top 50%
Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%
JEJx Nippon Oil & Energy: 1 patents #195 of 416Top 50%
TCToho Gas Co.: 1 patents #14 of 69Top 25%
TSTokai University Educational System: 1 patents #30 of 138Top 25%
Hitachi: 1 patents #17,742 of 28,497Top 65%
MCMitsubishi Chemical: 1 patents #1,511 of 3,022Top 50%
IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #28,465 of 4,157,543Top 1%
71 Patents All Time

Issued Patents All Time

Showing 51–71 of 71 patents

Patent #TitleCo-InventorsDate
7447746 Terminal device and method for use in media access communication system Shinichiro Ohmi, Kensuke Yoshizawa 2008-11-04
7380335 Stator manufacturing device Shingo Hashimoto, Tooru Kuroyanagi 2008-06-03
7372478 Pattern exposure method and pattern exposure apparatus Yoshitada Oshida, Yoshitatsu Naito, Mituhiro Suzuki, Bunji Uchiyama 2008-05-13
7346021 Master station in communications system and access control method Kensuke Yoshizawa, Shinichiro Ohmi 2008-03-18
7315524 Master station of communication system and access control method Shinichiro Ohmi, Kensuke Yoshizawa 2008-01-01
7311284 Coil forming method and coil forming device Shingo Hashimoto, Tooru Kuroyanagi 2007-12-25
7298706 Method and apparatus for power line communication Shigeo Yoshida, Shinichiro Ohmi, Tohru Yasukawa 2007-11-20
7275299 Motor manufacturing process Tooru Kuroyanagi, Shingo Hashimoto, Takahiro Kido 2007-10-02
7185413 Motor manufacturing method Tooru Kuroyanagi, Shingo Hashimoto 2007-03-06
7160495 Stator core resin molding method Shingo Hashimoto, Tooru Kuroyanagi 2007-01-09
7011266 Coil forming device and coil forming method Shingo Hashimoto, Tooru Kuroyanagi 2006-03-14
6975283 Information communication system Toshio Matsui 2005-12-13
6851417 Ignition device for internal combustion engine Masahiro Katayama, Kazuhiko Okamura, Kouji Hiragi, Kounosuke Inamura 2005-02-08
6832384 Turntable assembly having disc centering lead springs clamped between upper surface of turntable and an insert-type spring holder 2004-12-14
6806614 Core with insulation member, and method of producing the same Tooru Kuroyanagi 2004-10-19
6460755 Bump forming method and apparatus therefor Kosuke Inoue, Takamichi Suzuki, Hitoshi Odashima, Katsuhiro Iwashita, Tatsuya Yoneda +8 more 2002-10-08
6452671 Illuminator for macro inspection, macro inspecting apparatus and macro inspecting method Mitsuru Uda, Masami Shinohara 2002-09-17
6358487 Carbon black and process for producing the same Yoshihiro Omae, Nobutake Mise, Yutaka Fukuyama, Yuuichi Sekine, Takaharu Yamamoto +5 more 2002-03-19
6323642 Detector for determining rotational speed and position for an internal combustion engine Masayuki Nishimura, Koji Hiragi, Shinichi Maruo, Mitsuhiro Izumi 2001-11-27
5754681 Signal pattern recognition apparatus comprising parameter training controller for training feature conversion parameters and discriminant functions Hideyuki Watanabe, Shigeru Katagiri 1998-05-19
4798920 Stylus coordinate determining device with distortion compensation Toshiyuki Makino 1989-01-17