Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6067195 | Binoculars having hand-vibration compensation system | Ken Hirunuma, Shinji Tsukamoto, Moriyasu Kanai | 2000-05-23 |
| 6057962 | Observation optical system having hand-vibration compensation system | Ken Hirunuma, Shinji Tsukamoto, Moriyasu Kanai | 2000-05-02 |
| 6043934 | Observing equipment having hand-vibration compensation system | Ken Hirunuma, Shinji Tsukamoto, Moriyasu Kanai | 2000-03-28 |
| 5754339 | Vibration compensation device for binocular | Moriyasu Kanai, Yasuhiro Nishikata | 1998-05-19 |
| 5483384 | Lens accessory attaching mechanism | Morio Takizawa, Atsushi Matsuda | 1996-01-09 |
| 5222407 | Slip clutch mechanism | — | 1993-06-29 |
| 5191482 | Lens driving apparatus | — | 1993-03-02 |
| 5160956 | Lens barrel with screw mount | Kenji Watanabe, Takayasu Shishido | 1992-11-03 |
| 5148199 | Motor-driven zoom lens barrel | Shinsuke Kohmoto, Takuji Hamasaki | 1992-09-15 |
| 5144494 | Zoom lens barrel | — | 1992-09-01 |
| 4997888 | Weatherability and adherence of polypropylene | Yutaka Nakahara, Masaki Yagi, Naotoshi Sonoda | 1991-03-05 |
| 4994529 | Weatherability and adherence of polypropylene | Masaki Yagi, Yutaka Nakahara, Naotoshi Sonoda | 1991-02-19 |
| 4822153 | One-hand zoom lens barrel | Yasumasa Tomori | 1989-04-18 |
| 4387968 | Zoom lens mount barrel | — | 1983-06-14 |
| 4346967 | Zoom lens barrel for macrophotographing | Shinsuke Komoto | 1982-08-31 |
| 4252698 | Anti-yellowing composition | Michio Ito, Yoshimitsu Numajiri, Seiji Kimura | 1981-02-24 |
| 4244848 | Halogen containing resin composition | Motonobu Minagawa, Kenji Nakazawa | 1981-01-13 |
| 4224203 | Vinyl chloride polymer stabilizer comprising a metal organophosphonate | Motonobu Minagawa, Naoyasu Kurita, Yuji Sugawara | 1980-09-23 |
| 4224218 | Stabilized vinyl chloride polymer comprising a metal mono-organic phosphite | Motonobu Minagawa, Naoyasu Kurita, Yuji Sugawara | 1980-09-23 |
| 4221687 | Anti-yellowing composition | Motonobu Minagawa, Kenji Nakazawa | 1980-09-09 |
| 4217258 | Stabilized halogen-containing resin composition | Motonobu Minagawa, Kenji Nakazawa | 1980-08-12 |