Yoshino; Toshikazu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yoshino; Toshikazu.The latest application filed is for "optical disc".
- Yoshino; Toshikazu - Saitama JP
- Yoshino; Toshikazu - Ohmori-nishi JP
- Yoshino; Toshikazu - Tokorozawa JP
- Yoshino; Toshikazu - Tokyo JP
| Patent | Date |
|---|---|
| Optical disc Grant 4,972,404 - Yamaguchi , et al. November 20, 1 | 1990-11-20 |
| Molding compositions and diaphragms, arm pipes and head shells molded therefrom Grant 4,404,315 - Tsukagoshi , et al. September 13, 1 | 1983-09-13 |
| Diaphragms for acoustic instruments and method of producing the same Grant 4,352,407 - Tsukagoshi , et al. October 5, 1 | 1982-10-05 |
| Vibratory elements for audio equipment Grant 4,343,376 - Tsukagoshi , et al. August 10, 1 | 1982-08-10 |
| Molding compositions and diaphragms, arm pipes and head shells molded therefrom Grant 4,341,838 - Imai , et al. July 27, 1 | 1982-07-27 |
| Arm pipe for record player tonearms Grant 4,261,580 - Tsukagoshi , et al. April 14, 1 | 1981-04-14 |
| Method of producing a carbon diaphragm for an acoustic instrument Grant 4,221,773 - Tsukagoshi , et al. September 9, 1 | 1980-09-09 |
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