HI

Hiromichi Ishibashi

Sumitomo Electric Industries: 81 patents #52 of 21,551Top 1%
PA Panasonic: 22 patents #856 of 21,108Top 5%
SO Sony: 5 patents #7,785 of 25,231Top 35%
Philips: 4 patents #1,244 of 7,731Top 20%
📍 Toyonaka, JP: #3 of 1,166 inventorsTop 1%
Overall (All Time): #13,505 of 4,157,543Top 1%
104
Patents All Time

Issued Patents All Time

Showing 101–104 of 104 patents

Patent #TitleCo-InventorsDate
4823334 Optical head with easily adjustable collimator having two lens components Shinichi Tanaka 1989-04-18
4761774 Optical disc drive apparatus Shinichi Tanaka, Ryosuke Shimizu, Makoto Kuwamoto, Hajime Yamamoto 1988-08-02
4730297 Retardation compensating light beam guiding system in an optical storage medium drive apparatus Masaharu Imura 1988-03-08
4669073 Optical disk drive apparatus Noriaki Wakabayashi 1987-05-26