Issued Patents All Time
Showing 176–198 of 198 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4444472 | Lens system having color separation optics | — | 1984-04-24 |
| 4443078 | Distance detecting device in a camera | Yukichi Niwa, Yasuo Ogino, Mitsutoshi Ohwada, Noboru Koumura | 1984-04-17 |
| 4422734 | Photographic lens system having an auxiliary lens | Keiji Ikemori | 1983-12-27 |
| 4384199 | Incident position detector for radiation beam | Yasuo Ogino, Yukichi Niwa, Mitsutoshi Ohwada, Noboru Koumura | 1983-05-17 |
| 4380376 | Zoom objective | Shigeyuki Suda | 1983-04-19 |
| 4364642 | Zoom element focusable zoom lens | Ryusho Hirose | 1982-12-21 |
| 4358474 | Method for electric recording | Shiro Nakano, Yoshiro Naito, Shigeki Nakamura, Tosimasa Ikena | 1982-11-09 |
| 4339510 | Aluminum-base brazing alloy composite | Masaharu Kaifu, Hideo Fujimoto, Jun Takigawa, Tomohiro Nishimura, Yagoro Hirose +1 more | 1982-07-13 |
| 4338142 | Melting flux composition for submerged arc welding | Naoki Okuda | 1982-07-06 |
| 4336983 | Photographic objective stabilized against change of angular field during focusing | Sadahiko Tsuji | 1982-06-29 |
| 4330180 | Zoom lens system having a plural number of relay lenses | — | 1982-05-18 |
| 4318592 | Lens system with attachment lens removably attached | — | 1982-03-09 |
| 4318593 | Zoom lens assembly with two movable focusing lens groups | Sadahiko Tsuji, Noritsugu Hirata | 1982-03-09 |
| 4315279 | Color image detecting device | Tetsuro Kuwayama | 1982-02-09 |
| 4312964 | Polyolefin resin composition | Noriyuki Sekine, Shigeo Tanaka | 1982-01-26 |
| 4308314 | Electric recording material | Shiro Nakano, Yoshiro Naito, Shigeki Nakamura, Tosimasa Ikena | 1981-12-29 |
| 4284331 | Photographic objective having a focusing control with prevention of change in angular field of view | — | 1981-08-18 |
| 4281906 | Zoom lens | — | 1981-08-04 |
| 4278331 | Photographic objective which prevents variation in angular field of view during focusing | — | 1981-07-14 |
| 4259688 | TV camera | Mitsuhiro Tokuhara, Tetsuo Sueda, Ryusho Hirose | 1981-03-31 |
| 4259615 | Photographic flash device | Toshitsugu Kashihara | 1981-03-31 |
| 4225634 | Method for manufacturing gas composition detector | Osamu Takenaka, Masatosi Suzuki | 1980-09-30 |
| 4197484 | Electronic flash device with voltage display | — | 1980-04-08 |