Mitsutoshi Ayano

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Subscriber line interface circuit
- Patent number 4,827,505
- Issue date May 2, 1989
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Calling signal transmission apparatus
- Patent number 4,748,659
- Issue date May 31, 1988
- Fujitsu Limited
- Kiyoshi Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery feed circuit for a pair of subscriber lines
- Patent number 4,677,669
- Issue date Jun 30, 1987
- Fujitsu Limited
- Shigeru Kawami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery feed circuit for subscriber line
- Patent number 4,631,366
- Issue date Dec 23, 1986
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery feed circuit for telephone subscriber line
- Patent number 4,588,860
- Issue date May 13, 1986
- Fujitsu Limited
- Mitsutoshi Ayano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone switching system
- Patent number 4,175,218
- Issue date Nov 20, 1979
- Fujitsu Limited
- Mitsutoshi Ayano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE