KF

Keiichi Fujii

Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
PA Panasonic: 6 patents #4,438 of 21,108Top 25%
ME Medtronic: 4 patents #2,074 of 6,325Top 35%
Kyocera: 4 patents #773 of 3,732Top 25%
SH Shimadzu: 3 patents #606 of 2,007Top 35%
NJ Nuvoton Technology Corporation Japan: 3 patents #41 of 222Top 20%
DC Dainippon Ink And Chemicals: 1 patents #446 of 1,002Top 45%
RS Rf Stream: 1 patents #5 of 8Top 65%
📍 San Jose, CA: #2,616 of 32,062 inventorsTop 9%
🗺 California: #23,010 of 386,348 inventorsTop 6%
Overall (All Time): #170,035 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
11965933 Integrated circuit, battery monitoring device, and battery monitoring system Kazuo Matsukawa, Yu Okada, Yosuke Goto, Hitoshi Kobayashi 2024-04-23
11933854 Battery management circuit, battery management system, and battery management network Yu Okada, Hitoshi Kobayashi 2024-03-19
11467219 Battery monitoring device, integrated circuit, and battery monitoring system Kazuo Matsukawa, Yu Okada, Yoshikazu Makabe, Hitoshi Kobayashi, Takeshi Misaku 2022-10-11
10471266 Hermetic feedthrough for an implantable medical device Kengo Morioka, Arne Knudsen, Shingo Satou, Hidekazu Otomaru, Hiroshi Makino +5 more 2019-11-12
9418778 Method of manufacturing a feedthrough Kengo Morioka, Arne Knudsen, Shingo Satou, Hidekazu Otomaru, Hiroshi Makino +5 more 2016-08-16
9008779 Insulator for a feedthrough Kengo Morioka, Arne Knudsen, Shingo Satou, Hidekazu Otomaru, Hiroshi Makino +5 more 2015-04-14
8670829 Insulator for a feedthrough Kengo Morioka, Arne Knudsen, Shingo Satou, Hidekazu Otomaru, Hiroshi Makino +5 more 2014-03-11
7940940 Muting circuit and semiconductor integrated circuit Yasunobu Kakumoto 2011-05-10
7764797 Speaker driving device and audio output system Makoto Yamamoto 2010-07-27
7649383 Bidirectional level shift circuit and bidirectional bus system Hitoshi Kobayashi 2010-01-19
7605638 Semiconductor integrated circuit including charge pump circuit Toshinobu Nagasawa, Taku Kobayashi, Tetsushi Toyooka 2009-10-20
7518431 Semiconductor integrated circuit for processing audio and video signals Taku Kobayashi 2009-04-14
7474161 Charge pump circuit Satoshi Azuhata, Toshinobu Nagasawa, Tetsushi Toyooka 2009-01-06
7388434 BTL amplifier Makoto Yamamoto 2008-06-17
7377691 Radiographic apparatus that removes time lag by recursive computation Shoichi Okamura, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe +2 more 2008-05-27
7359693 Enclosure and substrate structure for a tuner module Kazunori Okui, Hiroshi Ogasawara, Takatsugu Kamata, Christopher Li 2008-04-15
7312650 Step-down voltage output circuit Taku Kobayashi, Yasunobu Kakumoto, Toshinobu Nagasawa 2007-12-25
7313218 Radiographic apparatus and radiation detection signal processing method Shoichi Okamura, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe +2 more 2007-12-25
7307465 Step-down voltage output circuit Taku Kobayashi 2007-12-11
7203279 Radiographic apparatus, and radiation detection signal processing method Shoichi Okamura, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe +2 more 2007-04-10
7015759 AGC circuit Takuma Ishida 2006-03-21
6977550 AGC circuit Takuma Ishida, Taku Kobayashi 2005-12-20
6891407 Analog signal level detecting apparatus Taku Kobayashi, Takuma Ishida 2005-05-10
6562536 Charge-controlling agent and toner using the same Hideki Ganbayashi 2003-05-13