Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819526 | Holding member for information storage disk and information storage disk drive device | Naoyuki Goto, Kousuke Nakajima, Junko Ishioka, Katsuhiko Yamaguchi, Toshitaka Yagi | 2004-11-16 |
| 6677259 | Glass-ceramics for a light filter | Naoyuki Goto, Donald G. Polensky | 2004-01-13 |