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

Koji Watanabe — 255 Patents

Hitachi: 30 patents #925 of 28,497Top 4%
Panasonic: 22 patents #856 of 21,108Top 5%
NONok: 18 patents #5 of 725Top 1%
NINifco: 17 patents #13 of 650Top 2%
IBM: 16 patents #6,952 of 70,183Top 10%
Mitsubishi Electric: 11 patents #2,558 of 25,717Top 10%
TIToray Industries: 9 patents #241 of 3,690Top 7%
Kawasaki: 8 patents #232 of 2,943Top 8%
SESeiko Epson: 8 patents #2,198 of 7,774Top 30%
KCKonishiroku Photo Industry Co.: 8 patents #101 of 894Top 15%
Sony: 7 patents #6,034 of 25,231Top 25%
BIBando Chemical Industries: 6 patents #24 of 303Top 8%
SCSenju Metal Industry Co.: 6 patents #42 of 349Top 15%
Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
The Yokohama Rubber Co.: 5 patents #270 of 1,136Top 25%
Nec: 4 patents #3,388 of 14,502Top 25%
HOHoriba: 4 patents #114 of 604Top 20%
MAMakita: 4 patents #298 of 770Top 40%
Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%
OBObayashi: 4 patents #4 of 118Top 4%
SCShinko Electric Industries Co.: 4 patents #182 of 723Top 30%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
Toyota: 3 patents #8,352 of 26,838Top 35%
FUFujifilm: 3 patents #1,989 of 4,519Top 45%
NCNagase Chemtex: 3 patents #5 of 74Top 7%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
KOKonica: 2 patents #962 of 1,958Top 50%
KSKonica Minolta Sensing: 2 patents #18 of 57Top 35%
HTHitachi Plant Technologies: 2 patents #55 of 279Top 20%
NANabtesco: 2 patents #85 of 320Top 30%
ACAdvics Co.: 2 patents #250 of 686Top 40%
NINikon: 2 patents #1,269 of 2,493Top 55%
NCNitto Boseki Co.: 2 patents #91 of 339Top 30%
Globalfoundries: 2 patents #1,397 of 4,424Top 35%
Pioneer: 2 patents #761 of 1,730Top 45%
Pioneer Electronic: 2 patents #804 of 1,840Top 45%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Microsoft: 1 patents #24,826 of 40,388Top 65%
ICIchinomiya Denki Co.: 1 patents #2 of 4Top 50%
MMMitsubishi Mining: 1 patents #886 of 2,247Top 40%
KCKohjin Co.: 1 patents #36 of 109Top 35%
KSKawasaki Steel: 1 patents #889 of 1,922Top 50%
RERenesas Electronics: 1 patents #2,739 of 4,529Top 65%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
HCHitachi Plant Engineering & Construction Co.: 1 patents #53 of 194Top 30%
SCSakata Denki Co.: 1 patents #3 of 8Top 40%
MKMeiji Seika Kaisha: 1 patents #353 of 752Top 50%
SCSekisui Chemical Co.: 1 patents #529 of 908Top 60%
ACAsahi Glass Co.: 1 patents #1,233 of 2,251Top 55%
TIToyota Industries: 1 patents #505 of 955Top 55%
FCFuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
TCTokyo Rope Mfg. Co.: 1 patents #38 of 144Top 30%
DIDisco: 1 patents #384 of 708Top 55%
UIUbe Industries: 1 patents #895 of 1,686Top 55%
NENec Electronics: 1 patents #715 of 1,789Top 40%
NCNhk Spring Co.: 1 patents #555 of 1,116Top 50%
HTHitachi Communication Technologies: 1 patents #83 of 214Top 40%
BKBando Kagaku Kabushiki Kaisha: 1 patents #8 of 37Top 25%
NCNippon Light Metal Company: 1 patents #203 of 499Top 45%
AEAlpine Electronics: 1 patents #279 of 637Top 45%
Tokyo, NY: #2 of 99 inventorsTop 3%
Overall (All Time): #1,893 of 4,157,543Top 1%
255 Patents All Time

Issued Patents All Time

Showing 151–175 of 255 patents

Patent #TitleCo-InventorsDate
7170829 Information reproducing apparatus and method 2007-01-30
7150341 Transmission apparatus of all-terrain vehicle Kazuhiro Maeda 2006-12-19
7140855 Inner mandrel Shinji Murakami, Hisashi Kojoh 2006-11-28
7126262 Piezoelectric vibration gyro element, method for manufacturing the same, and piezoelectric vibration gyro sensor Osamu Kawauchi 2006-10-24
7123120 Solenoid Takuya Kudo, Shuji Fukunaga 2006-10-17
7072673 Radio handset and position location system Katsuhiko Tsunehara, Kenzaburo Fujishima, Mikio Kuwahara 2006-07-04
7043023 Software defined radio and radio system Hideya Suzuki 2006-05-09
7000458 Weighing equipment for concrete material Shigeyuki Sogo, Ryuichi Chikamatsu 2006-02-21
6972718 Position calculating method, signal receiver, and position calculating apparatus therefor Atsushi Ogino 2005-12-06
6950661 Location detection method, location detection apparatus and location detection program Mikio Kuwahara, Katsuhiko Tsunehara, Kenzaburo Fujishima 2005-09-27
6902262 Laminated ink jet recording head Yuji Tanaka, Tomoaki Abe, Takayuki Ishii, Naomi Shirakawa, Koichi Toba +4 more 2005-06-07
6893117 Laminated ink jet recording head Yuji Tanaka, Tomoaki Abe, Takayuki Ishii, Naomi Shirakawa, Koichi Toba +4 more 2005-05-17
6863255 Solenoid having fluid accumulating and plunger chambers Takuya Kudo, Norio Uemura 2005-03-08
6849970 Linear motor 2005-02-01
6811572 Plush leather-like sheet product and method for production thereof Takafumi Hashimoto, Tetsuya Ito 2004-11-02
6780469 Nubuck-like artificial leather and a production process thereof Hiromichi Iijima 2004-08-24
6764382 Power transmission belt and method for fabricating the same Kazuyoshi Tani, Yoshitaka Kurose 2004-07-20
6751962 Tail tube seal structure of combustor and a gas turbine using the same structure Masamitsu Kuwabara, Yasuoki Tomita, Kiyoshi Suenaga, Masahito Kataoka, Yoshichika Sato 2004-06-22
6731602 Packet communication system and packet communication apparatus Tomoaki Ishifuji 2004-05-04
6695735 Power transmission belt and method for fabricating the same Kazuyoshi Tani, Yoshitaka Kurose 2004-02-24
6679962 Method for fabricating power transmission belt including grinding with specified grinding wheel Yoshitaka Kurose, Kazuyoshi Tani 2004-01-20
6664118 Ferroelectric-type nonvolatile semiconductor memory and operation method thereof Toshiyuki Nishihara 2003-12-16
6566698 Ferroelectric-type nonvolatile semiconductor memory and operation method thereof Toshiyuki Nishihara 2003-05-20
6544360 Highly strengthened spring and process for producing the same Akira Tange, Kotoji Ando 2003-04-08
6502929 Laminated ink jet recording head having a plurality of actuator units Yuji Tanaka, Tomoaki Abe, Takayuki Ishii, Naomi Shirakawa, Koichi Toba +4 more 2003-01-07