Yoshihiro Tanigawa

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Communication apparatus
- Patent number 6,167,262
- Issue date Dec 26, 2000
- Canon Kabushiki Kaisha
- Yoshihiro Tanigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange apparatus having an integrated services digital...
- Patent number 5,999,608
- Issue date Dec 7, 1999
- Canon Kabushiki Kaisha
- Yoshihiro Tanigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Private branch exchange apparatus
- Patent number 5,956,392
- Issue date Sep 21, 1999
- Canon Kabushiki Kaisha
- Yoshihiro Tanigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange system
- Patent number 5,586,172
- Issue date Dec 17, 1996
- Canon Kabushiki Kaisha
- Shigeki Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange apparatus, and method of connecting calls therein
- Patent number 5,459,778
- Issue date Oct 17, 1995
- Canon Kabushiki Kaisha
- Shoichi Takashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control of incoming and outgoing calls in a key system
- Patent number 5,251,254
- Issue date Oct 5, 1993
- Canon Kabushiki Kaisha
- Yoshihiro Tanigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone apparatus capable of setting card unit therein
- Patent number 5,138,655
- Issue date Aug 11, 1992
- Canon Kabushiki Kaisha
- Shoichi Takashima
- G06 - COMPUTING CALCULATING COUNTING

Yoshihiro Tanigawa

Person

Patents Grantslast 30 patents

Communication apparatus

Telephone exchange apparatus having an integrated services digital...

Private branch exchange apparatus

Telephone exchange system

Telephone exchange apparatus, and method of connecting calls therein

Control of incoming and outgoing calls in a key system

Telephone apparatus capable of setting card unit therein