Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10547818 | Image projection device and planetarium apparatus using same | — | 2020-01-28 |
| 7404832 | Method for producing cubic boron nitride abrasive grains | Hirohiko Ohtsubo, Eiji Ihara, Takuya Okubo, Makoto Iizuka | 2008-07-29 |
| 7293881 | Video projector for dome screen | — | 2007-11-13 |
| 6142635 | Image projection system for dome surface | Hiromitsu Ota, Mitsugu Omori, Hiroaki In, Hidehiko Miyazaki | 2000-11-07 |
| 5417542 | Method and apparatus for carrying workpiece by continuous workpiece carrying operation | Hisao Suzuki, Kazuhiro Tokitsu, Kiyoe Imai, Kouichi Yumita, Tadashi Munakata +5 more | 1995-05-23 |
| 5234304 | Method and apparatus for workpiece installation | Yutaka Okumoto, Kenji Koshiba, Hisao Suzuki, Kazuhiro Tokitsu, Kaoru Watanabe +8 more | 1993-08-10 |