Tsumori; Katsuhiko
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tsumori; Katsuhiko.The latest application filed is for "speaker system having a processing circuitry".
- Tsumori; Katsuhiko - Kobe JP
- Tsumori, Katsuhiko - Kobe-shi JP
| Patent | Date |
|---|---|
| Speaker system having processing circuitry Grant 7,130,441 - Tsumori , et al. October 31, 2 | 2006-10-31 |
| Speaker assembly having plural drivers Grant 7,082,208 - Tsumori , et al. July 25, 2 | 2006-07-25 |
| Speaker system having a processing circuitry App 20040165744 - Tsumori, Katsuhiko ; et al. | 2004-08-26 |
| Speaker assembly having plural drivers App 20040165738 - Tsumori, Katsuhiko ; et al. | 2004-08-26 |
| Speaker system Grant 6,751,330 - Kowaki , et al. June 15, 2 | 2004-06-15 |
| Speaker apparatus Grant 6,724,909 - Tsumori , et al. April 20, 2 | 2004-04-20 |
| Speaker apparatus App 20020057821 - Tsumori, Katsuhiko ; et al. | 2002-05-16 |
| Speaker system App 20010028724 - Kowaki, Hiroshi ; et al. | 2001-10-11 |
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