SI

Shigeharu Iijima

Canon: 8 patents #7,260 of 19,416Top 40%
Overall (All Time): #670,898 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4939023 Opto-magnetic recording medium Hiroshi Omata, Eizou Sasamori, Katsuhiko Takano, Eiichi Fujii, Ichiro Saito +1 more 1990-07-03
4777068 Optical recording medium Hiroshi Omata, Eizo Sasamori, Katsuhiko Takano, Masaaki Matsushima, Kazuoki Honguu +5 more 1988-10-11
4741967 Magnetic recording medium Satoshi Yoshihara, Katsuhiko Takano, Mitsuharu Sawamura, Masaaki Matsushima, Hiroyoshi Kishi +2 more 1988-05-03
4710418 Optical recording medium Katsuhiko Takano, Satoshi Yoshihara, Eizo Sasamori, Masaaki Matsushima, Hiroyoshi Kishi 1987-12-01
4661191 Method for bonding a color separation filter Masaru Kamio, Satoshi Yoshihara, Yasutsugu Ogura 1987-04-28
4618537 Recording medium Katsuhiko Takano, Satoshi Yoshihara, Masaaki Matsushima, Hiroyoshi Kishi, Eizo Sasamori 1986-10-21
4585312 Electrochromic element Kazuya Ishiwata 1986-04-29
4578322 Recording medium Mitsuharu Sawamura, Susumu Ito, Masaaki Matsushima, Hiroyoshi Kishi, Eizo Sasamori +2 more 1986-03-25