Narisawa; Yoshiyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Narisawa; Yoshiyuki.The latest application filed is for "hearing aid".
- Narisawa; Yoshiyuki - Kokubunji JP
- Narisawa; Yoshiyuki - Tokyo JP
| Patent | Date |
|---|---|
| Hearing aid Grant D497,001 - Narisawa , et al. October 5, 2 | 2004-10-05 |
| Hearing aid Grant D497,000 - Narisawa , et al. October 5, 2 | 2004-10-05 |
| Battery receiving chamber and hearing aid Grant 6,041,128 - Narisawa , et al. March 21, 2 | 2000-03-21 |
| Hearing aid Grant D375,556 - Narisawa , et al. November 12, 1 | 1996-11-12 |
| Earplug for a hearing aid Grant D368,309 - Narisawa March 26, 1 | 1996-03-26 |
| Hearing aid Grant D354,568 - Araki , et al. January 17, 1 | 1995-01-17 |
| Hearing aid Grant 5,347,584 - Narisawa September 13, 1 | 1994-09-13 |
| Structure of battery receiving chamber Grant 5,187,746 - Narisawa February 16, 1 | 1993-02-16 |
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