Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653924 | Methods of manufacturing gradient function material | Hirotaka Ishibashi, Hiroyuki Nagayama | 1997-08-05 |
| 5611693 | Image karaoke device | Norio Chaya, Hiroshi Nishikawa, Hiroyuki Takada, Yasutada Aoyama, Yasuhiro Funahashi +1 more | 1997-03-18 |