Ishige; Ryuuichi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ishige; Ryuuichi.The latest application filed is for "hearing aid".
- Ishige; Ryuuichi - Tokyo JP
| Patent | Date |
|---|---|
| Hearing aid Grant 6,330,339 - Ishige , et al. December 11, 2 | 2001-12-11 |
| Digital hearing aid and its hearing sense compensation processing method Grant 6,094,489 - Ishige , et al. July 25, 2 | 2000-07-25 |
| Digital hearing aid Grant 6,023,517 - Ishige February 8, 2 | 2000-02-08 |
| Digitally programmable hearing aid communicable with external apparatus through acoustic signal Grant 5,910,997 - Ishige , et al. June 8, 1 | 1999-06-08 |
| Digital hearing aid Grant 5,892,836 - Ishige , et al. April 6, 1 | 1999-04-06 |
| Hearing aid for controlling hearing sense compensation with suitable parameters internally tailored Grant 5,852,668 - Ishige , et al. December 22, 1 | 1998-12-22 |
| Digital hearing aid Grant 5,838,801 - Ishige , et al. November 17, 1 | 1998-11-17 |
| Hearing air system Grant 5,835,610 - Ishige , et al. November 10, 1 | 1998-11-10 |
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