Yoshihiro Shirakawa

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cordless telephone apparatus and cordless telephone system
- Patent number 10,084,901
- Issue date Sep 25, 2018
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Tsuyoshi Kawamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic telephone answering apparatus including conversion record...
- Patent number 5,442,685
- Issue date Aug 15, 1995
- Matsushita Electric Industrial Co., Ltd.
- Toshihiko Sakata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic answering telephone apparatus
- Patent number 5,278,896
- Issue date Jan 11, 1994
- Matsushita Electric Industrial Co., Ltd.
- Toshihiko Sakata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
CORDLESS TELEPHONE APPARATUS AND CORDLESS TELEPHONE SYSTEM
- Publication number 20160072939
- Publication date Mar 10, 2016
- Panasonic Intellectual Property Management Co., Ltd.
- Tsuyoshi KAWAMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE