Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614335 | Blanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating them | Keiji Hashimoto, Hiroshi Mohri, Masahiro Takahashi, Hiroyuki Miyashita, Yukio Iimura | 1997-03-25 |
| 5592317 | Chromium blanks for forming black matrix-screen and color filter for liquid crystal display | Yukio Iimura, Masahiro Takahashi, Takashi Nishimoto, Hiroyuki Matsui, Masanobu Fujita | 1997-01-07 |