Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7030838 | Image observation apparatus | Kenji Ishibashi, Yasushi Kobayashi, Yasushi Tanijiri, Hideki Nagata | 2006-04-18 |
| 6215461 | Image viewing system and image display device | Kenji Ishibashi, Yasushi Kobayashi, Yasushi Tanijiri, Hideki Nagata | 2001-04-10 |
| 5978015 | Stereoscopic system with convergence and dioptric power adjustments according to object distance | Kenji Ishibashi, Yasushi Tanijiri | 1999-11-02 |
| 5905525 | Image display apparatus having a display controlled by user's head movement | Kenji Ishibashi, Yasushi Tanijiri | 1999-05-18 |
| 5841409 | Image display apparatus | Kenji Ishibashi, Yasushi Tanijiri | 1998-11-24 |
| 5729384 | Compact telescope | Kiyoshi Nishitani | 1998-03-17 |
| 5706129 | Binoculars with extraction of a portion of light rays | Masato Kato, Naoki Ishihara | 1998-01-06 |
| 5679946 | Photo-taking lens temperature compensation system | Hiromu Mukai, Rieko Hasegawa | 1997-10-21 |
| 5640271 | Self-housing binocular | Kiyoshi Nishitani, Hiroyuki Okada | 1997-06-17 |
| 5194886 | Finder optical system | Hiromu Mukai, Kohtaro Hayashi, Ichiro Kasai, Jun Ishihara | 1993-03-16 |
| 5182672 | Finder optical system | Hiromu Mukai | 1993-01-26 |
| 4233627 | Signal multiplexing system | — | 1980-11-11 |
| 4219890 | Digital signal regulation system | — | 1980-08-26 |
| 4198663 | Digital signal recording system | — | 1980-04-15 |