Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6181469 | Optical member for photolithography, method for evaluating optical member, and photolithography apparatus | Hiroyuki Hiraiwa, Issey Tanaka | 2001-01-30 |
| 6025955 | Optical member for photolithography, method for evaluating optical member, and photolithography apparatus | Hiroyuki Hiraiwa, Issey Tanaka | 2000-02-15 |
| 6008904 | Apparatus and methods for detecting and correcting distortion of interference fringes | Mikihiko Ishii, Takashi Gemma | 1999-12-28 |
| 5619795 | Method for designing an oil ring | Ichiro Hirose | 1997-04-15 |
| 5417572 | Method for extracting a margin line for designing an artificial crown | Masaharu Kawai, Masami Baba | 1995-05-23 |
| 5369490 | Contour measuring apparatus | Masaharu Kawai, Masami Baba | 1994-11-29 |