Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7005081 | Base material cutting method, base material cutting apparatus, ingot cutting method, ingot cutting apparatus and wafer producing method | Nobuo Kawase, Nobuyoshi Tanaka | 2006-02-28 |
| 5148214 | Alignment and exposure apparatus | Hideki Ina, Akiyoshi Suzuki | 1992-09-15 |
| 4998821 | Projection apparatus | Shuichi Yabu, Junichi Murakami | 1991-03-12 |
| 4988188 | Illumination device | — | 1991-01-29 |
| 4887957 | Nozzle for melt spinning of pitch and method for spinning pitch | Masaaki Itoi | 1989-12-19 |
| 4786947 | Projection exposure apparatus | Masao Kosugi, Toshikazu Matsushita, Shuichi Yabu | 1988-11-22 |
| 4683524 | Illumination apparatus | — | 1987-07-28 |
| 4608150 | Pitch material for carbonaceous body and a method for the preparation thereof | Masaaki Itoi, Taizo Sugioka, Kunio Yoshihara, Hiroshi Nishitani | 1986-08-26 |