Iizuka; Sadao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Iizuka; Sadao.The latest application filed is for "optical pickup device".
- Iizuka; Sadao - Ora-gun JP
- Iizuka; Sadao - Shibukawa JP
| Patent | Date |
|---|---|
| Optical pickup device and manufacturing method thereof Grant 7,672,197 - Yoshinaga , et al. March 2, 2 | 2010-03-02 |
| Optical pickup device Grant 7,508,746 - Negishi , et al. March 24, 2 | 2009-03-24 |
| Optical pickup device App 20060062101 - Negishi; Hiroyuki ; et al. | 2006-03-23 |
| Optical pickup device and manufacturing method thereof App 20060007799 - Yoshinaga; Chikashi ; et al. | 2006-01-12 |
| Production of magnetic powder Grant 4,306,921 - Suzuki , et al. December 22, 1 | 1981-12-22 |
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