Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KS

Koichi Sato

Canon: 91 patents #145 of 19,416Top 1%
Kabushiki Kaisha Toshiba: 62 patents #224 of 21,451Top 2%
PEPentax: 50 patents #16 of 761Top 3%
FIFujifilm Business Innovation: 31 patents #168 of 1,659Top 15%
Sony: 24 patents #1,623 of 25,231Top 7%
HOHoya: 22 patents #28 of 1,290Top 3%
PEPentax: 16 patents #18 of 396Top 5%
NSNippon Steel: 16 patents #96 of 4,423Top 3%
NCNissei Asb Machine Co.: 15 patents #8 of 103Top 8%
NMNippon Steel & Sumitomo Metal: 15 patents #22 of 1,491Top 2%
Mitsubishi Electric: 8 patents #3,714 of 25,717Top 15%
Denso: 8 patents #1,668 of 11,792Top 15%
NCNippon Seiki Co.: 8 patents #6 of 311Top 2%
Dai Nippon Printing Co.: 7 patents #325 of 2,222Top 15%
Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
S(Sealed Air Corporation (Us): 5 patents #39 of 278Top 15%
Nec: 5 patents #2,830 of 14,502Top 20%
Hitachi: 4 patents #8,942 of 28,497Top 35%
ACAnden Co.: 4 patents #18 of 95Top 20%
TCToyoda Gosei Co.: 4 patents #572 of 2,296Top 25%
SCSanyo Electric Co.: 4 patents #1,493 of 6,347Top 25%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
MCMitsui Mining & Smelting Co.: 3 patents #195 of 838Top 25%
CCCitizen Watch Co.: 3 patents #353 of 1,225Top 30%
PCPentax Ricoh Imaging Company: 3 patents #18 of 74Top 25%
Pioneer: 3 patents #574 of 1,730Top 35%
RERenesas Electronics: 3 patents #1,322 of 4,529Top 30%
Casio Computer Co.: 2 patents #935 of 1,970Top 50%
TCTaiyo Yuden Co.: 2 patents #481 of 959Top 55%
MLMagic Leap: 2 patents #463 of 665Top 70%
TPTohoku Pioneer: 2 patents #104 of 312Top 35%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
IBM: 2 patents #32,839 of 70,183Top 50%
FCFujitec Co.: 2 patents #6 of 78Top 8%
Toyota: 2 patents #10,861 of 26,838Top 45%
FUFujifilm: 2 patents #2,431 of 4,519Top 55%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Toshiba Memory: 1 patents #1,210 of 1,971Top 65%
AKAsahi Kogaku Kabushiki Kaisha: 1 patents #9 of 73Top 15%
AKAsahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
AKAsahi Kogyo Kabushiki Kaisha: 1 patents #1 of 10Top 10%
CTChiba Institute Of Technology: 1 patents #11 of 57Top 20%
CCCitizen Holdings Co.: 1 patents #208 of 431Top 50%
DKDenki Kagaku Kogyo: 1 patents #291 of 655Top 45%
ENEneos: 1 patents #95 of 206Top 50%
FCFuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
FLFujitsu Toshiba Mobile Communications Limited: 1 patents #30 of 113Top 30%
HEHitachi-Ge Nuclear Energy: 1 patents #139 of 313Top 45%
HGHGST: 1 patents #1,032 of 1,677Top 65%
HZHitachi Zosen: 1 patents #216 of 531Top 45%
ICIdemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
JEJx Nippon Oil & Energy: 1 patents #195 of 416Top 50%
KOKonica: 1 patents #1,290 of 1,958Top 70%
KCKuraray Co.: 1 patents #981 of 1,827Top 55%
KBKurashiki Boseki: 1 patents #73 of 175Top 45%
NENec Electronics: 1 patents #715 of 1,789Top 40%
NONippon Oil: 1 patents #392 of 773Top 55%
NCNippon Paint Holdings Co.: 1 patents #415 of 834Top 50%
NKNippon Seiki K.K.: 1 patents #1 of 11Top 10%
NCNippon Shokubai Co.: 1 patents #656 of 1,108Top 60%
NCNitto Boseki Co.: 1 patents #172 of 339Top 55%
NLNoritake Co., Limited: 1 patents #133 of 334Top 40%
PCPolyplastics Co.: 1 patents #154 of 292Top 55%
RERensas Electronics: 1 patents #1 of 17Top 6%
SCStanley Electric Co.: 1 patents #550 of 1,072Top 55%
Stanford University: 1 patents #2,251 of 5,197Top 45%
TCThe Cannon Company: 1 patents #3 of 90Top 4%
TIToray Industries: 1 patents #2,000 of 3,690Top 55%
TSToshiba Medical Systems: 1 patents #656 of 1,088Top 65%
YEYokogawa Electric: 1 patents #658 of 1,441Top 50%
Kariya, CA: #1 of 20 inventorsTop 5%
Overall (All Time): #451 of 4,157,543Top 1%
462 Patents All Time

Issued Patents All Time

Showing 401–425 of 462 patents

Patent #TitleCo-InventorsDate
5526138 Still video device in which image signals corresponding to one frame can be divided and recorded on a plurality of tracks 1996-06-11
5508725 Ink jet head having trapezoidal ink passages, ink cartridge and recording apparatus with same Akira Goto, Kazuaki Masuda, Takashi Watanabe, Kunihiko Maeoka, Nobuyuki Kuwabara +9 more 1996-04-16
5497238 Controlling erasing of tracks of a recording medium used with a still video apparatus Harumi Aoki 1996-03-05
5494423 Rotary compressor and blade tip structure Akihiko Ishiyama, Ken'ichi Kawashima, Hirokatsu Kohsokabe, Shoichi Nakashima, Hideki Yazawa +3 more 1996-02-27
5489928 Liquid-repellent application process for a liquid ejection recording apparatus Hiroto Takahashi, Seiichiro Karita 1996-02-06
5484845 Polyacetal compositions having surface gloss reducing effective amounts of core-shell polymers Ichiro Sasaki, Takao Teraoka, Junji Ohshima, Toru Katsumata 1996-01-16
5475515 Liquid crystal device having a stretched porous polymer film impregnated with a low molecular weight mesomorphic compound Kazuo Yoshinaga, Ryoji Fujiwara, Yomishi Toshida, Toshikazu Ohnishi, Takeo Eguchi +1 more 1995-12-12
5473448 Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer Kazuo Yoshinaga, Hajime Sakata, Yomishi Toshida, Toshikazu Ohnishi, Takeo Eguchi +1 more 1995-12-05
5452022 Image signal storage device for a still video apparatus Yasuhiro Yamamoto 1995-09-19
5447655 Polymeric liquid crystal copolymer compound, composition, thererof, and polymeric liquid crystal device making use of these Kazuo Yoshinaga, Yomishi Toshida, Takeo Eguchi 1995-09-05
5434675 Still video device Yasuhiro Yamamoto 1995-07-18
5406423 Apparatus and method for retrieving audio signals from a recording medium 1995-04-11
5392128 Still video device that records/reproduces a plurality of identical signals 1995-02-21
5389331 Method of injection molding multi-ply products using plastic heat-insulating barrier layer Shinichi Uehara 1995-02-14
5385432 Water area structure using placing member for underwater ground Osamu Kiyomiya, Kenichiro Minami, Kunio Takahashi 1995-01-31
5379301 Microprocessor for debugging programs Koji Hirano, Kazunori Saitoh 1995-01-03
5372745 Liquid crystal device, display apparatus using same and display method using same Kazuo Yoshinaga, Hidetoshi Suzuki, Katsumi Kurematsu, Yomishi Toshida, Toshikazu Ohnishi +3 more 1994-12-13
5371528 Liquid jet head with nonlinear liquid passages having a diverging portion Masaaki Izumida, Shigeaki Tanaka, Tsuguhiro Fukuda, Nobuyuki Kuwabara, Akira Goto +9 more 1994-12-06
5328344 Enclosed type rotary compressor Susumu Kawaguchi 1994-07-12
5326233 Enclosed motor compressor of a two cylinder type Tetsuya Mochizuki, Susumu Kawaguchi, Masatoshi Sakai, Hideaki Maeyama 1994-07-05
5316806 Information memory medium and information recording/holding process making use of the medium Kazuo Yoshinaga 1994-05-31
5316557 Manufacturing process of alkaline cell Akira Iwase, Hirofumi Iwaki, Toshikazu Kaneko, Isao Kubo 1994-05-31
5311214 Ink jet recording apparatus having means for removing foreign material from an ink supply path by first introducing an into the ink supply path Shinichi Hirasawa, Koji Terasawa, Akira Miyakawa, Tsutomu Abe, Yoshifumi Hattori 1994-05-10
5287197 Signal demodulation device 1994-02-15
5268783 Liquid crystal device including a polymer having a surface energy of at most 25 dyn/cm, display apparatus using same and display method using same Kazuo Yoshinaga, Yomishi Toshida, Toshikazu Ohnishi, Takeo Eguchi, Tsuyoshi Shibata 1993-12-07