Sadaka Mitsuo

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Kasuga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Telephone and private branch exchange
- Patent number 7,113,583
- Issue date Sep 26, 2006
- Matsushita Electric Industrial Co., Ltd.
- Sadaka Mitsuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Private branch exchange
- Patent number 6,952,467
- Issue date Oct 4, 2005
- Matsushita Electric Industrial Co., Ltd.
- Sadaka Mitsuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange for wire telephone and radio telephone
- Patent number 5,757,902
- Issue date May 26, 1998
- Matsushita Electric Industrial Co., Ltd.
- Sadaka Mitsuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Private branch exchange apparatus
- Patent number 5,655,012
- Issue date Aug 5, 1997
- Matsushita Electric Industrial Co., Ltd.
- Kousuke Tsuchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE