Toyama; Yutaka
Patent Applications and Registrations
Patent applications and USPTO patent grants for Toyama; Yutaka.The latest application filed is for "keyboard device for electronic musical keyboard instrument".
- Toyama; Yutaka - Hamamatsu JP
- Toyama; Yutaka - Hamamatsu-shi JP
| Patent | Date |
|---|---|
| Keyboard structure of electronic keyboard instrument Grant 7,678,981 - Toyama March 16, 2 | 2010-03-16 |
| Keyboard apparatus of electronic keyboard instrument Grant 7,544,876 - Toyama June 9, 2 | 2009-06-09 |
| Keyboard device for electronic musical keyboard instrument Grant 7,476,795 - Toyama January 13, 2 | 2009-01-13 |
| Keyboard device for electronic musical keyboard instrument App 20080121091 - Toyama; Yutaka | 2008-05-29 |
| Keyboard structure of electronic keyboard instrument App 20080017016 - Toyama; Yutaka | 2008-01-24 |
| Keyboard apparatus of electronic keyboard instrument App 20070295193 - Toyama; Yutaka | 2007-12-27 |
| Electronic apparatus Grant 6,980,432 - Natsume , et al. December 27, 2 | 2005-12-27 |
| Electronic apparatus App 20040066631 - Natsume, Yoshihiro ; et al. | 2004-04-08 |
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