Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672448 | Multi-exposure system for hologram | Emiko Isogai, Satoshi Koike, Hiroshi Ando, Hiroyuki Tatebayashi | 1997-09-30 |
| 5648857 | Manufacturing method for hologram which can prevent the formation of ghant holograms due to noise light | Hiroshi Ando, Minako Sugiura, Yoshikatsu Ichikawa | 1997-07-15 |
| 5631107 | Method for producing optical member | Hiroyuki Tarumi, Satoshi Koike, Kazumasa Kurokawa, Tetsuya Kato, Masayuki Goto | 1997-05-20 |