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 126–150 of 255 patents

Patent #TitleCo-InventorsDate
7855890 Cooling system for electronic equipment Yasuhiro Kashirajima, Hiroshige Kikuchi, Takumi Sugiura, Kenichi Nakashima 2010-12-21
7781798 Solid-state image pickup device and fabrication method therefor Yusaku Kobayashi, Toshihiko Hayashi 2010-08-24
7764680 Communication system and call control server Norihisa Matsumoto, Naruhito Nakahara 2010-07-27
7747242 Wireless communication system, base station, packet control function apparatus, node apparatus and accounting server Yosuke Takahashi 2010-06-29
7735356 Measuring apparatus and measuring method for concrete-forming materials Shigeyuki Sogo, Ryuichi Chikamatsu, Hisayoshi Kikkawa 2010-06-15
7712892 Image forming apparatus Hajime Nishida, Manabu Nonaka, Eiki Yoshimizu, Shinichiro Naruse, Yasuhiro Kawashima +10 more 2010-05-11
7701018 Semiconductor device and method for manufacturing same Shigeharu Yamagami, Hitoshi Wakabayashi, Kiyoshi Takeuchi, Atsushi Ogura, Masayasu Tanaka +4 more 2010-04-20
7692391 Discharge lamp ballast, lighting system and projector Katsuyoshi Nakada, Hirofumi Konishi, Junichi Hasegawa, Kiyoaki Uchihashi, Toshiaki Sasaki 2010-04-06
7667745 Signal detecting system using a difference in sample hold circuit outputs 2010-02-23
7645514 Curing resin composition, adhesive epoxy resin paste, adhesive epoxy resin sheet, conductive connection paste, conductive connection sheet, and electronic component joined body Toshio Enami, Yoshiyuki Takebe, Tatsuo Suzuki 2010-01-12
7635123 Image forming apparatus, image forming method, and bypass sheet supplier capable of regulating and supplying recording medium Manabu Nonaka 2009-12-22
7626303 Stator for inner rotor type mold brushless motor Toshio Shindo 2009-12-01
7622869 Discharge lamp ballast and projector Hirofumi Konishi, Junichi Hasegawa, Katsuyoshi Nakada, Toshiaki Sasaki 2009-11-24
7615500 Method for depositing film and method for manufacturing semiconductor device Kensuke Takano, Ichiro Yamamoto 2009-11-10
7612416 Semiconductor device having a conductive portion below an interlayer insulating film and method for producing the same Kiyoshi Takeuchi, Koichi Terashima, Hitoshi Wakabayashi, Shigeharu Yamagami, Atsushi Ogura +4 more 2009-11-03
7610049 Wireless communication system, server and mobile station therefor 2009-10-27
7578207 Measuring apparatus and measuring method for concrete-forming materials Shigeyuki Sogo, Ryuichi Chikamatsu, Hisayoshi Kikkawa 2009-08-25
7549586 Optical measurement system and sample optical property management method Toru Kobayashi, Masao Nakamuro, Naoki Sagisaka 2009-06-23
7544522 Fabrication method of semiconductor integrated circuit device Makoto Kanda, Daisuke HIROTA 2009-06-09
7511432 Discharge lamp lighting device, illumination device, and projector Kiyoaki Uchihashi, Hisaji Ito, Toshiaki Sasaki, Junichi Hasegawa, Katsuyoshi Nakada 2009-03-31
7504782 Discharge lamp lighting apparatus and projector Junichi Hasegawa, Hirofumi Konishi, Akihiro Kishimoto, Katsuyoshi Nakada 2009-03-17
7385701 Standard plane sample and optical characteristic measurement system Norio Ishikawa, Masao Nakamuro 2008-06-10
D547717 Automobile tire Kenji Yamane, Izumi Kuramochi, Hiroshi Tokizaki 2007-07-31
7213674 Transmission apparatus of all-terrain vehicle Kazuhiro Maeda, Eiichi Tamaki 2007-05-08
7207212 Device and method for weighing concrete material Shigeyuki Sogo, Ryuichi Chikamatsu, Hisayoshi Kikkawa 2007-04-24