Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702847 | Phase shift photomask, phase shift photomask blank, and process for fabricating them | Norihiro Tarumoto, Hiroyuki Miyashita, Koichi Mikami | 1997-12-30 |
| 5614335 | Blanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating them | Keiji Hashimoto, Junji Fujikawa, Hiroshi Mohri, Masahiro Takahashi, Hiroyuki Miyashita | 1997-03-25 |
| 5592317 | Chromium blanks for forming black matrix-screen and color filter for liquid crystal display | Junji Fujikawa, Masahiro Takahashi, Takashi Nishimoto, Hiroyuki Matsui, Masanobu Fujita | 1997-01-07 |