Yokokawa; Tsuyoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yokokawa; Tsuyoshi.The latest application filed is for "optical disk data erasing apparatus and optical disk data erasing method".
- Yokokawa; Tsuyoshi - Toyo JP
- Yokokawa; Tsuyoshi - Ehime JP
| Patent | Date |
|---|---|
| Optical disc recording/reproducing method and recording/reproducing apparatus Grant 7,260,676 - Yokokawa August 21, 2 | 2007-08-21 |
| Optical disk data erasing apparatus and optical disk data erasing method Grant 7,079,462 - Yokokawa July 18, 2 | 2006-07-18 |
| Optical disk data erasing apparatus and optical disk data erasing method Grant 7,079,463 - Yokokawa July 18, 2 | 2006-07-18 |
| Optical disk data erasing apparatus and optical disk data erasing method App 20050094522 - Yokokawa, Tsuyoshi | 2005-05-05 |
| Optical disk data erasing apparatus and optical disk data erasing method App 20050094521 - Yokokawa, Tsuyoshi | 2005-05-05 |
| Optical disk data erasing apparatus and optical disk data erasing method Grant 6,834,034 - Yokokawa December 21, 2 | 2004-12-21 |
| Optical disk data erasing apparatus and optical disk data erasing method App 20020114239 - Yokokawa, Tsuyoshi | 2002-08-22 |
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