Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692819 | Illuminating device and projector utilizing the same | Hideaki Mitsutake, Kohtaro Yano, Shigeru Kawasaki, Junko Shingaki | 1997-12-02 |
| 5604163 | Synthetic silica glass powder | Hozumi Endo, Akira Utsunomiya | 1997-02-18 |
| 5590942 | Polarizing conversion unit, illuminating device and projector using them | Hideaki Mitsutake, Shigeru Kawasaki | 1997-01-07 |