Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5175577 | Drive member sensing arrangement for an automatic focusing system of a camera | Hiroyuki Koizumi, Atsushi Takami, Tadashi Ishikawa | 1992-12-29 |
| 5109250 | Program shutter | Yoichi Seki, Shigeru Tagami | 1992-04-28 |
| 5060000 | Motor-driven shutter for camera | Masuo Ogihara, Hiroyuki Ishida, Shinji Nagaoka, Youichi Seki, Shigeru Tagami +1 more | 1991-10-22 |
| 5047796 | Automatic focusing device for camera | Sigeru Tagami, Kazuo Akimoto | 1991-09-10 |
| 5045873 | Motor driven shutter | Hiroto Tsuyuki | 1991-09-03 |
| 5028946 | Shutter for a single lens reflex camera | Hiroto Tsuyuki, Yoichi Nakano, Seiichi Imano | 1991-07-02 |
| 4974006 | Camera lens driving device | Hiroto Tsuyuki | 1990-11-27 |
| 4920372 | Camera | Tadashi Nakagawa, Hiroyuki Koizumi, Hiroshi Yamazaki, Hiroyuki Saito, Katsuhiko Matsushita +1 more | 1990-04-24 |
| 4893142 | Device for activating motor-driven shutter blades | Hiroaki Ishida, Yasuhiro Nishitani | 1990-01-09 |
| 4881096 | Motor-driven shutter for camera | Masuo Ogihara, Hiroyuki Ishida, Shinji Nagaoka, Youichi Seki, Shigeru Tagami +1 more | 1989-11-14 |
| 4876563 | Motor-driven shutter for camera | Hiroaki Ishida, Michitake Nakazawa | 1989-10-24 |
| 4868596 | Motor driven shutter for camera | Hiroaki Ishida | 1989-09-19 |
| 4864347 | Program shutter | Tadashi Nakagawa, Shigeru Tagami, Youichi Seki | 1989-09-05 |
| 4864346 | Program shutter | Shigeru Tagami, Masaki Tanaka, Katauhito Niwa | 1989-09-05 |
| 4782353 | Stepping motor-driven sector opening/closing device | Masuo Ogihara, Shigeru Tagami | 1988-11-01 |
| 4444511 | Mode switching device in an electronic timepiece | Masuo Ogihara, Tadashi Ishikawa, Yoichi Seki | 1984-04-24 |
| 4423966 | Alarm control system for alarm clock | Masuo Ogihara, Tadashi Ishikawa, Yoichi Seki | 1984-01-03 |
| 4400091 | Second stop device of clock | Musuo Ogihara, Tadashi Ishikawa, Yoichi Seki | 1983-08-23 |
| 4376994 | Time detecting device for alarm clock | Masuo Ogihara, Tadashi Ishikawa, Yoichi Seki | 1983-03-15 |
| 4371267 | Time detecting device for alarm clock | Masuo Ogihara, Tadashi Ishikawa, Yoichi Seki | 1983-02-01 |
| 4351043 | Time detecting switch for an alarm clock | Masuo Ogihara, Kozo Chimura | 1982-09-21 |
| 4304475 | Warning system for automatic focusing camera | Kiyoshi Kitai, Masuo Ogihara, Kozo Chimura | 1981-12-08 |
| 4298972 | Alarm signaling time detecting device for leaf type digital clock | Masuo Ogihara, Kozo Chimura, Yoichi Seki | 1981-11-03 |
| 4293938 | Alarm signaling time detecting device for digital clock | Masuo Ogihara, Kozo Chimura, Yoichi Seki | 1981-10-06 |
| 4287586 | Signaling time detecting device for leaf type digital clock | Masuo Ogihara, Kozo Chimura, Yoichi Seki | 1981-09-01 |