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 226–250 of 255 patents

Patent #TitleCo-InventorsDate
4827304 Camera Michio Yagi, Seiichi Isoguchi, Satoshi Harada, Masami Fujita 1989-05-02
4821381 Fastener made of synthetic resin Yoshio Kaneko, Kunihiro Fukuhara 1989-04-18
4790014 Low-pitched sound creator Katsuhiko Hayashi, Nobuaki Minakuchi, Masayuki Misaki, Kenichi Terai, Yasutoshi Nakama +1 more 1988-12-06
4743250 Artificial blood vessel and method of manufacture Hideaki Kitagawa, Miyoshi Okamoto 1988-05-10
4743483 Napped sheet having a pattern thereon and method for its production Hisao Shimizu, Miyoshi Okamoto 1988-05-10
4730202 Camera Michio Yagi, Seiichi Isoguchi, Satoshi Harada, Masami Fujita 1988-03-08
4709949 Latch device Takashi Umezawa 1987-12-01
4695280 Artificial vascular graft Miyoshi Okamoto, Yuichi Mori, Yasuharu Noishiki 1987-09-22
4667481 Method of and apparatus for emitting light in ice Mitsuo Watanabe, Naoki Toyoda, Hideo Toyoda, Toshio Kumano, Michiaki Hiramoto 1987-05-26
4652119 Range finder Kiziro Suzuki, Seiichi Isoguchi, Shotaro Yokoyama, Takashi Nishibe 1987-03-24
4632343 Fastening device for bundling band 1986-12-30
D285049 Harness clip for wire or cable strapping 1986-08-12
4584701 Reverberator having tapped and recirculating delay lines Yasutoshi Nakama 1986-04-22
4556511 Flame resistant oil Haruo Nishigaki, Shiroh Fukui, Kiyoshi Kanematsu 1985-12-03
4524451 Sound reproduction system having sonic image localization networks 1985-06-18
4494853 Photometric method for cameras 1985-01-22
4492450 Camera with microprocessor Kazuo Shiozawa, Kiziro Suzuki, Ryushi Shimokawa 1985-01-08
4469643 Phosphorus-containing compounds and process for producing the same Takashi Tsuruoka, Satoshi Imai, Atsuyuki Satoh, Tetsuro Watanabe, Shigeharu Inouye +1 more 1984-09-04
4467248 Variable electronic flash light equipment Michio Yagi 1984-08-21
4466913 Phosphorus-containing compounds and process for producing the same Takashi Tsuruoka, Satoshi Imai, Atsuyuki Satoh, Tetsuro Watanabe, Shigeharu Inouye +1 more 1984-08-21
4443084 Film winding device Toshimitsu Harada 1984-04-17
4441798 Camera having a liquid crystal focusing screen Yoshihiro Higuchi, Michio Yagi, Kazuo Shiozawa 1984-04-10
4436253 Device for clamping one terminal end of a tape in a tape reel 1984-03-13
4371123 Tape reel 1983-02-01
4350006 Synthetic filaments and the like Miyoshi Okamoto, Yasuhiko Nukushina, Tsuneo Aizawa 1982-09-21