Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638103 | Method for recording and reproducing information, apparatus therefor and recording medium | Hiroyuki Obata, Takashi Aono, Masato Koike, Hideaki Amano, Norikazu Saito +5 more | 1997-06-10 |
| 5614335 | Blanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating them | Keiji Hashimoto, Junji Fujikawa, Masahiro Takahashi, Hiroyuki Miyashita, Yukio Iimura | 1997-03-25 |