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 176–200 of 255 patents

Patent #TitleCo-InventorsDate
6498478 Azimuth measuring method, azimuth measuring apparatus, position measuring method, and position measuring apparatus Fumio Sakata, Nobuyoshi Yamazaki, Shinichi Endo 2002-12-24
6482118 Power transmission belt and method for fabricating the same Kazuyoshi Tani, Yoshitaka Kurose 2002-11-19
6484034 Radio handset and position location system Katsuhiko Tsunehara, Kenzaburo Fujishima, Mikio Kuwahara 2002-11-19
6459126 Semiconductor device including a MIS transistor Tohru Mogami, Mitsuhiro Togo, Toyoji Yamamoto, Nobuyuki Ikarashi, Kazutoshi Shiba +2 more 2002-10-01
D461763 Automobile tire Izumi Kuramochi, Hiroshi Tokizaki, Hiroyoshi Hibino, Manami Sagara 2002-08-20
6435997 Power transmission belt and method for fabricating the same Yoshitaka Kurose, Kazuyoshi Tani 2002-08-20
6432013 Power transmission belt and method for fabricating the same Kazuyoshi Tani, Yoshitaka Kurose 2002-08-13
6419447 Gas turbine equipment and turbine blade Masaaki Matsuura, Kiyoshi Suenaga 2002-07-16
6290462 Gas turbine cooled blade Tatsuo Ishiguro, Masaaki Matsuura, Kenichiro Takeishi, Junichiro Masada, Yasuoki Tomita +1 more 2001-09-18
6270311 Gas turbine split ring Masamitsu Kuwabara, Yasuoki Tomita, Kiyoshi Suenaga, Masahito Kataoka, Yoshichika Sato 2001-08-07
6220036 Cooling structure for combustor tail pipes Mitsuru Inada, Kouichi Akagi, Jun Kubota, Yoshichika Sato 2001-04-24
6196799 Gas turbine moving blade platform Ichiro Fukue, Eiji Akita, Kiyoshi Suenaga, Yasuoki Tomita 2001-03-06
6165334 Dry etching apparatus 2000-12-26
6153898 Ferroelectric capacitor, method of manufacturing same and memory cell using same Masahiro Tanaka 2000-11-28
6146091 Gas turbine cooling structure Akiko Aizawa, Rintaro Chikami, Kiyoshi Suenaga 2000-11-14
6144275 Solenoid actuator Ichiro Hirata, Norio Uemura, Hideki Higashidozono, Kazuya Kimura, Kazuhiko Minami +2 more 2000-11-07
6084516 Audio apparatus Mitsuo Yasushi, Masatoshi Yanagidaira, Jun Cheng, Kayoko Takashima, Hiroshi Satoh +1 more 2000-07-04
6048310 Audio apparatus Mitsuo Yasushi, Masatoshi Yanagidaira, Jun Cheng, Kayoko Takashima, Hiroshi Satoh +1 more 2000-04-11
6043561 Electronic material, its manufacturing method, dielectric capacitor, non-volatile memory and semiconductor device Kenji Katori, Katsuyuki Hironaka 2000-03-28
6010778 Coating composition utilizing modified sol having tin oxide-tungsten oxide complex colloid particles and lens coated therewith Yoichi Kimura, Toshihiko Horibe 2000-01-04
6011284 Electronic material, its manufacturing method, dielectric capacitor, nonvolatile memory and semiconductor device Kenji Katori, Nicolas Nagel, Masahiro Tanaka 2000-01-04
5993974 Porcelain-enameled steel sheets and frits for enameling Yasumasa Fukushima, Masato Kumagai, Kyoko Hamahara, Toshihide Suzuki, Hiroshi Nagaishi +1 more 1999-11-30
5906494 Training apparatus for singing Nobuyuki Ogawa, Tatsuhiko Numoto, Kenji Muraki 1999-05-25
5904766 Process for preparing bismuth compounds Takaaki Ami, Katsuyuki Hironaka, Akio Machida 1999-05-18
5816098 Method and system for controlling attitude of lifting load utilizing gyro effect Hiroshi Kanki, Yoshitsugu Nekomoto, Tatsuya Wakisaka, Yasukuni Kamimura, Atsuhiro Doyama +4 more 1998-10-06