Toei; Keiji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Toei; Keiji.The latest application filed is for "oxide film removing apparatus and removing method thereof using azeotropic vapor mixture".
- Toei; Keiji - Kyoto JP
| Patent | Date |
|---|---|
| Oxide film removing apparatus and removing method thereof using azeotropic vapor mixture Grant 5,112,437 - Watanabe , et al. May 12, 1 | 1992-05-12 |
| Method for removing a film on a silicon layer surface Grant 5,022,961 - Izumi , et al. June 11, 1 | 1991-06-11 |
| Photosensitive material with two photosensitive layers for forming separate imaged elements Grant 4,599,295 - Kondo , et al. July 8, 1 | 1986-07-08 |
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