Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493013 | Method for recording and reproducing information, apparatus therefor and recording medium | Hiroyuki Obata, Takashi Aono, Masato Koike, Hideaki Amano, Norikazu Saito +5 more | 2002-12-10 |
| 6458496 | Blank for halftone phase shift photomask and halftone phase shift photomask | Toshiaki Motonaga, Toshifumi Yokoyama, Takafumi Okamura, Yoshinori Kinase, Junji Fujikawa +4 more | 2002-10-01 |