Tsukamoto; Tetsushi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tsukamoto; Tetsushi.The latest application filed is for "photo mask blank and photo mask".
- Tsukamoto; Tetsushi - Niigata JP
- Tsukamoto; Tetsushi - Nakakubiki-gun JP
- Tsukamoto; Tetsushi - Niigata-ken JP
| Patent | Date |
|---|---|
| Photo mask blank and photo mask Grant 7,264,908 - Kaneko , et al. September 4, 2 | 2007-09-04 |
| Methods of manufacturing photomask blank and photomask Grant 7,195,846 - Kaneko , et al. March 27, 2 | 2007-03-27 |
| Phase shift mask blank and method of manufacture Grant 7,037,625 - Kaneko , et al. May 2, 2 | 2006-05-02 |
| Silica glass substrates and their selection Grant 6,928,837 - Takeuchi , et al. August 16, 2 | 2005-08-16 |
| Photo mask blank and photo mask App 20040229136 - Kaneko, Hideo ; et al. | 2004-11-18 |
| Methods of manufacturing photomask blank and photomask App 20040110073 - Kaneko, Hideo ; et al. | 2004-06-10 |
| Photomask blank and photomask Grant 6,727,027 - Tsukamoto , et al. April 27, 2 | 2004-04-27 |
| Phase shift mask blank and method of manufacture App 20030008219 - Kaneko, Hideo ; et al. | 2003-01-09 |
| Photomask blank and photomask App 20020115003 - Tsukamoto, Tetsushi ; et al. | 2002-08-22 |
| Silica glass substrates and their selection App 20020078710 - Takeuchi, Masaki ; et al. | 2002-06-27 |
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