Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440517 | Glass material | Hiroki Yamamoto, Takashi Naito, Takashi Namekawa, Yasutaka Suzuki, Ken Takahashi +1 more | 2002-08-27 |
| 6411591 | Optical recording medium and optical memory device | Koichi Moritani, Akemi Hirotsune, Motoyasu Terao, Yasushi Miyauchi, Takashi Naito +2 more | 2002-06-25 |