Issued Patents All Time
Showing 126–144 of 144 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431700 | Magnetic recording medium | Nobuo Tsuji, Yasuyuki Tanaka, Koichi Yamauchi | 1984-02-14 |
| 4414271 | Magnetic recording medium and method of preparation thereof | Tatsuji Kitamoto, Ryuji Shirahata, Goro Akashi | 1983-11-08 |
| 4409291 | Magnetic recording medium | Hiroshi Ogawa, Akira Kasuga, Yasuo Tamai | 1983-10-11 |
| 4407901 | Magnetic recording medium | Hajime Miyatsuka, Akira Kasuga | 1983-10-04 |
| 4405481 | Magnetic recording medium | Nobuo Tsuji, Tsutomu Okita, Yasuo Mukunoki | 1983-09-20 |
| 4394071 | Lens system with fill-in lens | — | 1983-07-19 |
| 4391851 | Process for producing a magnetic recording medium | Goro Akashi, Nobuo Tsuji, Yoshito Mukaida, Masaaki Fujiyama | 1983-07-05 |
| 4373786 | Photographic objective of reduced size | — | 1983-02-15 |
| 4368956 | Compact photographic objective | Kikuo Momiyama | 1983-01-18 |
| 4368237 | Process for producing magnetic recording device | Tatsuji Kitamoto, Goro Akashi | 1983-01-11 |
| 4367261 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu, Masaaki Fujiyama | 1983-01-04 |
| 4343831 | Process for producing magnetic recording medium | Nobuo Tsuji, Goro Akashi, Masaaki Fujiyama | 1982-08-10 |
| 4336308 | Magnetic recording media | Kenichi Masuyama, Nobuo Tsuji | 1982-06-22 |
| 4333988 | Magnetic recording media | Kenichi Masuyama, Tatsuji Kitamoto | 1982-06-08 |
| 4297020 | View finder for single-lens reflex camera | Youichi Okuno | 1981-10-27 |
| 4273797 | Method of detecting pinholes in a magnetic recording medium | Goro Akashi, Masaaki Fujiyama, Nobutaka Yamaguchi | 1981-06-16 |
| 4260466 | Method of producing magnetic recording medium | Ryuji Shirahata, Tatsuji Kitamoto, Goro Akashi | 1981-04-07 |
| 4251843 | Disc jacket for retaining magnetic recording disc | Kenichi Masuyama, Tatsuji Kitamoto | 1981-02-17 |
| 4183976 | Process of producing a magnetic recording element | Tatsuji Kitamoto | 1980-01-15 |