Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702241 | Scroll-type fluid displacement apparatus having sealing means for central portions of the wraps | Takayuki Matsumoto, Yasuomi Matsumoto | 1997-12-30 |
| 5688617 | Phase shift layer-containing photomask, and its production and correction | Koichi Mikami, Hiroyuki Miyashita, Yoichi Takahashi, Masa-aki Kurihara | 1997-11-18 |
| 5650708 | Inverter control apparatus using a two-phase modulation method | Takeshi Sawada, Hiroya Tsuji, Kanji Takeuchi, Tsuneyuki Egami | 1997-07-22 |
| 5614336 | Phase shift layer-containing photomask, and its production and correction | Koichi Mikami, Hiroyuki Miyashita, Yoichi Takahashi, Masa-aki Kurihara | 1997-03-25 |