Kazumi Kinoshita

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ring trip detection circuit
- Patent number 5,335,271
- Issue date Aug 2, 1994
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ground fault detector
- Patent number 5,113,426
- Issue date May 12, 1992
- Fujitsu Limited
- Kazumi Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip circuit for subscriber telephone
- Patent number 4,995,111
- Issue date Feb 19, 1991
- Fujitsu Limited
- Toshiro Tojo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery feed circuit
- Patent number 4,935,960
- Issue date Jun 19, 1990
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Operational amplifier
- Patent number 4,912,429
- Issue date Mar 27, 1990
- Fujitsu Limited
- Kenji Takato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Protection circuit for battery feed circuit
- Patent number 4,862,309
- Issue date Aug 29, 1989
- Fujitsu Limited
- Toshiro Tojo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated ringing circuit and a ring trip circuit for the same
- Patent number 4,827,503
- Issue date May 2, 1989
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE