Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993543 | Refrigerating machine oil for carbon dioxide refrigerant | Kazuo Tagawa, Ken Sawada, Yuji Shimomura, Katsuya Takigawa, Jiro Hashimoto | 2011-08-09 |
| 7015182 | Detergent composition for cleaning precision parts | Katsuhiko Rindo, Ryoichi Hashimoto | 2006-03-21 |
| 5871266 | Projection-type display device | Eiki Matsuo | 1999-02-16 |
| 5583100 | Oil compositions for hot rolling aluminum and aluminum alloys | Yoshio Okamoto, Yukio Sugishita, Hiroyuki Andoh, Kuniaki Matsui, Takehiko Ichimoto | 1996-12-10 |
| 5297926 | Flow generating apparatus and method of manufacturing the apparatus | — | 1994-03-29 |
| 4974138 | Lighting device | — | 1990-11-27 |
| 4930867 | Device for changings directions of light rays | — | 1990-06-05 |
| 4813765 | Device for changing directions of light rays | — | 1989-03-21 |
| 4809147 | Lighting device | — | 1989-02-28 |
| 4807975 | Image forming system having uniform illumination flux for liquid crystal image means | — | 1989-02-28 |
| 4765733 | Light projector | — | 1988-08-23 |
| 4734836 | Lighting apparatus | — | 1988-03-29 |
| 4670095 | Method for forming partial films on uneven surfaces of objects | — | 1987-06-02 |
| 4657355 | Device for changing light width and direction | — | 1987-04-14 |
| 4548472 | Plate for removing surface reflection out of the visual fields | — | 1985-10-22 |
| 4510560 | Device for controlling light images | — | 1985-04-09 |
| 4458488 | Heat engine | — | 1984-07-10 |
| 4222239 | Heat engine | — | 1980-09-16 |