Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676804 | Method for fabricating fresnel lenses by selective application and removal of films on lens surfaces | Akiyoshi Fujii, Hiroshi Hamada | 1997-10-14 |
| 5633737 | Projection-type color liquid crystal display having two micro-lens arrays | Takashi Shibatani, Hiroshi Hamada, Hiroshi Nakanishi | 1997-05-27 |
| 5612686 | Method and an apparatus for monitoring the environment around a vehicle and an operation support system using the same | Kazuaki Takano, Makoto Shioya, Takuya Imaide, Kenichirou Kurata | 1997-03-18 |
| 5605518 | Planetary gear device | Kiyoshi Kogure, Hiroshi Agata | 1997-02-25 |