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

Hiroshi Kikuchi

Canon: 57 patents #533 of 19,416Top 3%
Hitachi: 56 patents #204 of 28,497Top 1%
OCOki Electric Industry Co.: 50 patents #3 of 2,807Top 1%
Ricoh Company: 21 patents #1,013 of 9,818Top 15%
TLTokyo Electron Limited: 13 patents #516 of 5,567Top 10%
Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
OLOlympus: 6 patents #794 of 3,097Top 30%
ODOki Data: 6 patents #119 of 635Top 20%
SISumitomo Rubber Industries: 5 patents #438 of 1,637Top 30%
SHShinkawa: 4 patents #67 of 229Top 30%
FIFujifilm Business Innovation: 4 patents #1,993 of 5,238Top 40%
3M: 4 patents #3,441 of 11,543Top 30%
Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
FCFurukawa Electric Co.: 3 patents #622 of 2,370Top 30%
HHHitachi High-Technologies: 3 patents #776 of 1,917Top 45%
HSHitachi Hokkai Semiconductor: 3 patents #24 of 98Top 25%
RTRenesas Technology: 3 patents #990 of 3,337Top 30%
Sony: 3 patents #10,744 of 25,231Top 45%
ULUlvac: 2 patents #199 of 680Top 30%
HSHitachi Automotive Systems: 2 patents #689 of 1,636Top 45%
NPNippon Telegraph And Telephone Public: 2 patents #129 of 842Top 20%
Panasonic: 2 patents #9,678 of 21,108Top 50%
ACAlps Electric Co.: 2 patents #822 of 2,177Top 40%
HDHitachi Displays: 2 patents #384 of 752Top 55%
TCTsubakimoto Chain: 2 patents #212 of 593Top 40%
KEKeihin: 1 patents #237 of 596Top 40%
PEPentax: 1 patents #238 of 396Top 65%
HGHGST: 1 patents #253 of 483Top 55%
Kawasaki: 1 patents #1,551 of 2,943Top 55%
SCShin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
TUTohoku University: 1 patents #615 of 1,680Top 40%
HAHitachi Astemo: 1 patents #649 of 1,276Top 55%
WCWorld Chemical Co.: 1 patents #6 of 22Top 30%
ACAmada Co.: 1 patents #242 of 479Top 55%
MCMurata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
NKNippon Hoso Kyokai: 1 patents #306 of 703Top 45%
NINgk Insulators: 1 patents #1,271 of 2,083Top 65%
NCNippon Zeon Co.: 1 patents #307 of 609Top 55%
OCOji Paper Co.: 1 patents #173 of 423Top 45%
MMMitsubishi Mining: 1 patents #886 of 2,247Top 40%
OCOki Electric Co.: 1 patents #3 of 39Top 8%
KCKunimine Industries Co.: 1 patents #4 of 37Top 15%
OCOki Electronic Industries Co.: 1 patents #1 of 29Top 4%
Yokohama, WA: #1 of 36 inventorsTop 3%
Overall (All Time): #1,596 of 4,157,543Top 1%
274 Patents All Time

Issued Patents All Time

Showing 176–200 of 274 patents

Patent #TitleCo-InventorsDate
5848904 Device for electrically connecting equipment and case accommodating the equipment 1998-12-15
5849606 Semiconductor device and manufacturing of the same Tetsuya Hayashida, Masakatsu Gotou 1998-12-15
5821606 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 1998-10-13
5792279 Equipment adapted to use solar cell or device adapted to the equipment Takayuki Tsuboi, Toshinori Sato 1998-08-11
5793099 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjoh +19 more 1998-08-11
5725922 Semiconductive silicone rubber compositions and semiconductive silicone rubber rolls Tsutomu Nakamura, Satao Hirabayashi, Hirokazu Ando, Takao Mizutani 1998-03-10
5704970 Water-preventing sealant with plasticity Yuji Kawaguchi, Tomonori Nagaoka, Takeshi Nakamura 1998-01-06
5697005 Cover assembly for apparatus 1997-12-09
5633175 Process for stripping photoresist while producing liquid crystal display device Yasushi Sano, Satoru Todoroki, Hitoshi Oka, Toshiyuki Koshita, Masato Kikuchi +2 more 1997-05-27
5612569 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjoh +19 more 1997-03-18
5610695 Roller for electrophotographic development apparatus Takao Mizutani, Hirokazu Ando 1997-03-11
5598663 Hydroponic nutrient solution control system 1997-02-04
5590490 Hydroponic nutrient solution control system 1997-01-07
5580441 Method of measuring ion concentration and apparatus therefor Isao Amemiya, Noriko Sato 1996-12-03
5544491 Abyssal casting apparatus for liquefied carbonated gas Masahiko Ozaki, Keisuke Sonoda, Osamu Tsukamoto, Masao Komatsu, Koetsu Asai 1996-08-13
5536128 Method and apparatus for carrying a variety of products Sadao Shimoyashiro, Takemasa Iwasaki, Hiroyuki Kawaji, Toyohide Hamada, Minoru Ikeda +1 more 1996-07-16
5530286 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjoh +19 more 1996-06-25
5478156 Printer having print data arithmetic logic Katsuyuki Ito, Shinichi Katakura, Jiro Tanuma, Hiroshi Okada, Kazuhiko Nagaoka +1 more 1995-12-26
5471331 Spatial light modulator element with amorphous film of germanium, carbon and silicon for light blocking layer Kuniharu Takizawa, Yukihisa Osugi, Shoji Tange 1995-11-28
5399202 Resist-peeling liquid and process for peeling a resist using the same Yasushi Sano, Satoru Todoroki, Hitoshi Oka, Toshiyuki Koshita, Masato Kikuchi +2 more 1995-03-21
5387493 Photosensitive resin composition for forming conductor patterns and multilayer circuit boards using same Shinichiro Imabayashi, Hitoshi Oka, Isamu Tanaka, Makio Watanabe 1995-02-07
5366629 Liquid recovering apparatus Yozi Mori, Motonori Suzuki, Kenrou Motoda 1994-11-22
D352518 Camera Hiroyuki Fukushima, Kazuaki Sakuta 1994-11-15
5358904 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjoh +19 more 1994-10-25
D348689 Toner cartridge Yukio Ota, Hisao Ono 1994-07-12