Yoshito Ogawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
NB-WDM system and method for establishing wavelength number informa...
- Patent number 6,256,126
- Issue date Jul 3, 2001
- NEC Corporation
- Yoshito Ogawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase-locked loop circuit having a timing holdover function
- Patent number 5,574,757
- Issue date Nov 12, 1996
- NEC Corporation
- Yoshito Ogawa
- H03 - BASIC ELECTRONIC CIRCUITRY