HS

Hidefumi Sakata

SE Seiko Epson: 51 patents #197 of 7,774Top 3%
Overall (All Time): #52,106 of 4,157,543Top 2%
51
Patents All Time

Issued Patents All Time

Showing 51–51 of 51 patents

Patent #TitleCo-InventorsDate
5436876 Optical head and optical memory device Osamu Yokoyama, Masatoshi Yonekubo, Hideaki Iwano, Takashi Takeda, Tetsuya Seki +1 more 1995-07-25