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 76–100 of 255 patents

Patent #TitleCo-InventorsDate
9010171 Exhaust gas analyzing apparatus, exhaust gas analyzing system and method of operating the same Hiroyoshi Nakagawa 2015-04-21
8996231 Test system Katsumi Uratani, Hiroshi Nakamura, Tsutomu Misogi 2015-03-31
8991679 Solder piece, chip solder and method of fabricating solder piece Masahiko Abe, Hideaki Takahashi, Masahiko Kanno, Masaya Ito 2015-03-31
8967968 Turbine rotor blade Takeshi Umehara, Osamu Ueda 2015-03-03
8932590 Method of adsorbing transforming growth factor β Kazuo Teramoto, Toshio Yoshioka, Masaaki Shimagaki, Takeo Matsunase, Yuji Ueda +1 more 2015-01-13
8931574 Lubrication structure for working device 2015-01-13
8923922 Mobile communication system and access gateway having plural user plane AGWS Yosuke Takahashi 2014-12-30
8918408 Candidate generation for predictive input using input history Katsutoshi Ohtsuki 2014-12-23
8872444 Lighting device for solid-state light source and illumination apparatus including same Kazuhiro Nisimoto, Hiromitsu Mizukawa 2014-10-28
8863145 Storage apparatus and load distribution method Sadahiro Sugimoto 2014-10-14
8844937 Sealing device 2014-09-30
8841559 Copper column Yutaka Chiba, Shinichi Nomoto 2014-09-23
8839638 Cooling system for electronic equipment Yasuhiro Kashirajima, Hiroshige Kikuchi, Takumi Sugiura, Kenichi Nakashima 2014-09-23
8723436 LED lighting device and illumination apparatus including same Hiromitsu Mizukawa, Kenji Matsuda 2014-05-13
8716949 Lighting device for solid-state light source and illumination apparatus using same Hiromitsu Mizukawa 2014-05-06
8699402 Multi-hop relay radio communication system, access gateway, and route selection method Hiroto Nakagawa 2014-04-15
8669721 Solid state light source based lighting device and lighting system Hiromitsu Mizukawa, Nobuo Ukita, Kazuhiro Nishimoto 2014-03-11
8581510 Discharge lamp lighting apparatus Katsuyoshi Nakada, Tomoyuki Nakano, Junichi Hasegawa 2013-11-12
8550571 Brake control apparatus Takayuki Yamamoto, Takashi Satou 2013-10-08
8532053 Wireless communication system and method for assuring communication quality of packet flow Yosuke Takahashi 2013-09-10
8500583 Aircraft starter generator Tatsuhiko Goi, Kenichiro Tanaka 2013-08-06
8493928 Wireless system, for packet communication between base station and mobile stations Yosuke Takahashi 2013-07-23
8489918 Storage system and ownership control method for storage system Ryu Takada, Kei Satoh, Yasuyuki Nagasoe 2013-07-16
8449431 Aircraft electric generation system Tatsuhiko Goi, Kenichiro Tanaka, Masahide Nakamura 2013-05-28
8447304 Mobile communication system and access gateway having plural user plane AGWs Yasutaka Morinaga 2013-05-21