Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942793 | Low alpha-ray level glass and method for manufacturing the same | Tatsuya Senoo | 1999-08-24 |
| 5336643 | Low expansion transparent crystallized glass-ceramic | Naoyuki Goto | 1994-08-09 |
| 5332700 | High dispersion optical glass | Katsuhiko Yamaguchi, Futoshi Ishizaki, Naoyuki Goto, Goro Enomoto, Hideo Yasui | 1994-07-26 |
| 4501819 | Glass for a photomask | Mutsumi Miyazaki | 1985-02-26 |