Tohru Izumiyama

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Patents Grantslast 30 patents

Information Patent Grant
Balanced dual mode mixer apparatus
- Patent number 5,530,928
- Issue date Jun 25, 1996
- QUALCOMM Incorporated
- Charles E. Wheatley
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for using a balanced mixer as a switch
- Patent number 5,483,696
- Issue date Jan 9, 1996
- QUALCOMM Incorporated
- Charles E. Wheatley
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
CATV receiver
- Patent number 4,827,509
- Issue date May 2, 1989
- Alps Electric Co., Ltd.
- Tohru Izumiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE