Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7264908 | Photo mask blank and photo mask | Hideo Kaneko | 2007-09-04 |
| 7195846 | Methods of manufacturing photomask blank and photomask | Hideo Kaneko, Yukio Inazuki, Masayuki Mogi, Katsuya Okumura | 2007-03-27 |
| 7037625 | Phase shift mask blank and method of manufacture | Hideo Kaneko, Yukio Inazuki, Satoshi Okazaki | 2006-05-02 |
| 6928837 | Silica glass substrates and their selection | Masaki Takeuchi, Atsushi Watabe, Yukio Shibano | 2005-08-16 |
| 6727027 | Photomask blank and photomask | Hideo Kaneko, Tamotsu Maruyama, Yukio Inazuki, Tsutomu Shinagawa, Satoshi Okazaki | 2004-04-27 |