Hitachi Communication System, Inc.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hitachi Communication System, Inc..The latest application filed is for "temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver".
- Hitachi Communication System, Inc. - Yokohama JP
- Hitachi Communication System, Inc. - Tokyo JP
| Patent | Date |
|---|---|
| Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver Grant 6,603,110 - Hayami , et al. August 5, 2 | 2003-08-05 |
| Method of controlling a frame phase of a time-division switch and frame phase variable time-division switch Grant 5,351,238 - Ashi , et al. September 27, 1 | 1994-09-27 |
| ISDN communication control unit and control method Grant 5,267,245 - Maruyama , et al. November 30, 1 | 1993-11-30 |
| SAW resonator having a broad bandwidth Grant 5,010,269 - Hikita , et al. April 23, 1 | 1991-04-23 |
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