Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231440 | Method of and apparatus for forming volume type phase hologram | Yasuo Yamagishi, Takeshi Ishitsuka, Motoaki Tani | 1993-07-27 |
| 5154994 | Method of and apparatus for forming volume type phase hologram | Yasuo Yamagishi, Takeshi Ishitsuka, Motoaki Tani | 1992-10-13 |