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 101–125 of 255 patents

Patent #TitleCo-InventorsDate
8412892 Storage system and ownership control method for storage system Toshiya Seki, Takashi Sakaguchi 2013-04-02
8400983 Communication system and method, and gateway Hiroto Nakagawa, Yosuke Takahashi, Yuichiro Katsu 2013-03-19
8378510 Starting and generating apparatus for engine Kenichiro Tanaka, Tatsuhiko Goi, Kazushige Sugimoto, Masahide Nakamura, Yasutaka Hirota 2013-02-19
8363584 Equipment and method for providing broadcast/multicast service in mobile communications Peng Yang, Yuanchen Ma, Yi Zhang, Hui Deng, Hideya Yoshiuchi 2013-01-29
8348437 Discharge lamp lighting device and image display device that controls electric power converter output on a historical basis Hirofumi Konishi 2013-01-08
8343865 Semiconductor device having dual work function metal Shin Koyama 2013-01-01
8324829 Startup control for a high pressure discharge lamp ballast Katsuyoshi Nakada, Tomoyuki Nakano 2012-12-04
8315668 Mobile communication system and access gateway having plural user plane AGWS Yosuke Takahashi 2012-11-20
8250110 Data transfer method and proxy server, and storage subsystem Tadashi Takeuchi, Daisuke Yokota 2012-08-21
8222834 HID lamp ballast with controlled DC step down circuit Katsuyoshi Nakada, Tomoyuki Nakano, Junichi Hasegawa 2012-07-17
8207680 Discharge lamp ballast having an auto-transformer for high voltage detection Katsuyoshi Nakada, Tomoyuki Nakano, Junichi Hasegawa 2012-06-26
8199504 Cooling system for electronic equipment Yasuhiro Kashirajima, Hiroshige Kikuchi, Takumi Sugiura, Kenichi Nakashima 2012-06-12
8184575 Packet communication network and subscriber-associated-information delivery controller Morihito Miyagi, Hitomi Nakamura 2012-05-22
8184162 Radiation image capturing apparatus 2012-05-22
8161490 Storage apparatus and load distribution method Sadahiro Sugimoto 2012-04-17
D655991 Engine hedge trimmer Yuji Yamamoto, Tomoaki Sato 2012-03-20
8140075 Wireless communication system, server and mobile station therefor 2012-03-20
8134480 Image processing system and method Hirohisa Onome 2012-03-13
8134972 Communication system and gateway apparatus Hitomi Nakamura, Masashi Yano, Naruhito Nakahara, Yosuke Takahashi 2012-03-13
8121027 Access gateway, terminal and method of controlling flow in wireless system Yosuke Takahashi, Norihisa Matsumoto 2012-02-21
D650734 Automobile tire Masaya Mita, Kenichiro Endo, Izumi Kuramochi 2011-12-20
8068500 Node device, packet control device, radio communication device, and transmission control method Yousuke Takahashi 2011-11-29
8064298 Recording medium reproducing device, a method for reproducing a recording medium, a program for reproducing a recording medium, and a recording medium Yumi Ueno 2011-11-22
8038143 Sheet delivery device and image forming device 2011-10-18
8036662 Method and apparatus for performing handoff in mobile network communication by immediately terminating a connection before changing the point of attachment to save network resources Hui Deng, Yuanchen Ma, Peng Yang 2011-10-11