Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7344255 | Light amount adjusting apparatus and projector using the same | Katura Nakajima, Tokuro Kusunoki, Yukihiko Hayakawa | 2008-03-18 |
| 7210795 | Light quantity adjusting device and projector apparatus using the same | Masahide Shirasu, Yukihiko Hayakawa | 2007-05-01 |
| 7019785 | Pan/tilt apparatus and camera equipped with the same | Kenji Masuyama | 2006-03-28 |
| 5907733 | Exposing aperture device for a camera | Kazuhito Nakagomi | 1999-05-25 |
| 4593166 | Dual action pressure switch | Hisatoshi Hirota | 1986-06-03 |
| 4591677 | Three-function pressure switch | Hisatoshi Hirota, Masaichi Kawahata | 1986-05-27 |