KN

Kiyoshi Negishi

PE Pentax: 48 patents #18 of 761Top 3%
HO Hoya: 6 patents #201 of 1,290Top 20%
AK Asahi Kogaku Kogyo K.K.: 4 patents #27 of 180Top 15%
TK Toyo Boseki Kabushiki Kaisha: 3 patents #234 of 1,085Top 25%
AC Asia Optical Co.: 1 patents #175 of 366Top 50%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
📍 Asaka, JP: #5 of 378 inventorsTop 2%
Overall (All Time): #36,037 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 51–63 of 63 patents

Patent #TitleCo-InventorsDate
4879459 Automatic power controller for semiconductor laser 1989-11-07
4845483 Malfunction communicating device for optical unit of laser printer 1989-07-04
4802179 Apparatus for controlling optical output from semiconductor laser 1989-01-31
4761659 Temperature and aging compensated drive circuit in a semiconductor laser beam printer 1988-08-02
4761661 Emergency resetting circuit for a semiconductor laser of a laser beam printer 1988-08-02
4748633 Semiconductor laser drive circuit in laser beam printer 1988-05-31
4727382 Intensity control for a semiconductor laser of a laser beam printer Shinyu Ikeda, Manabu Imoto, Hideo Aida 1988-02-23
4629305 Automatic exposure camera Osamu Sato, Eiichi Tano 1986-12-16
4558940 Manual aperture value setting circuit for camera Eiichi Tano, Takeo Kobayashi 1985-12-17
4557575 Photographing mode display switching circuit Eiichi Tano, Takeo Kobayashi 1985-12-10
4555170 Device for illuminating display unit in viewfinder Yoshio Wakui, Eiichi Tano 1985-11-26
4514075 Automatic control apparatus for photographic camera Masahiro Kawasaki, Eiichi Tano 1985-04-30
4215387 Multi-layer flexible printed circuit board assembly Katsuhiko Miyata 1980-07-29