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

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 26–50 of 71 patents

Patent #TitleCo-InventorsDate
9399165 Game device, game control method, recording medium and game management device Jun Hayashi 2016-07-26
9391044 Printed wiring board and method for manufacturing printed wiring board Keisuke Shimizu, Yuichi Nakamura 2016-07-12
9288910 Substrate with built-in electronic component and method for manufacturing substrate with built-in electronic component Keisuke Shimizu, Yuichi Nakamura 2016-03-15
9267502 Motor-driven compressor Shingo Enami, Yoshikazu Fukutani, Akio Fujii, Takeshi Hamanaka 2016-02-23
9200676 Fitting structure of cylindrical member 2015-12-01
9190913 Power source device and image forming apparatus 2015-11-17
9025643 Communication apparatus, communication method and integrated circuit Toshinari Mouri, Kensuke Yoshizawa, Yuko Inoue, Noriaki Maehara, Maiko Taruki +1 more 2015-05-05
8899309 Ventilation device Kenichi Maegaito, Yoshitaka Matsugi 2014-12-02
8885594 Master station in communications system and access control method Kensuke Yoshizawa, Shinichiro Ohmi 2014-11-11
8850462 Disk drive apparatus with a centering mechanism 2014-09-30
8724277 Communication device, power supplying method therefor, and power supply system Masanori Baba, Yoshimi Tokunaga, Mutsuhiko Ooishi 2014-05-13
8622834 Game control system recording medium and game system control method Daisuke Sogabe, Junichi Fujita, Jun Hayashi, Kazuya Takahashi 2014-01-07
8565258 Terminal capable of substituting for control station Shinichiro Ohmi, Go Kuroda 2013-10-22
8520599 Master station of communication system and access control method Shinichiro Ohmi, Kensuke Yoshizawa 2013-08-27
8517822 Game system, control method of game system, and recording medium 2013-08-27
8247508 Isobutylene-based polymer and method for producing same Tsutomu Takashima, Akira Shiibashi 2012-08-21
8162759 Network game system, network game program, network game apparatus, and network game control method 2012-04-24
8155082 Master station, candidate for master station and method for use in a communication system Shinichiro Ohmi, Kensuke Yoshizawa 2012-04-10
8142099 Automatic transmission Toru Souda, Akihito Hongoya, Satoru Kasuya, Takahiro Torii, Takayuki Kawakami +1 more 2012-03-27
8107431 Master station in communications system and access control method Kensuke Yoshizawa, Shinichiro Ohmi 2012-01-31
8089614 Device for changing pitch between light beam axes, and substrate exposure apparatus Yoshitada Oshida, Yoshitatsu Naito, Mituhiro Suzuki, Shigenobu Maruyama 2012-01-03
8074240 Disk drive device with improved centering holding function 2011-12-06
7978698 Terminal for performing multiple access transmission suitable to a transmission path having varied characteristics Yuji Igata, Yasushi Yokomitsu, Toru Yasukawa, Shinichiro Ohmi, Koji Ikeda +3 more 2011-07-12
7957342 Master station of communication system and access control method Shinichiro Ohmi, Kensuke Yoshizawa 2011-06-07
7460555 Terminal apparatus Shinichiro Ohmi, Go Kuroda 2008-12-02