Gontaro Kitazumi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Single transducer full duplex talking circuit
- Patent number 8,315,379
- Issue date Nov 20, 2012
- Matech, Inc.
- Masahisa Masuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Infrared communication adapter
- Patent number 7,218,953
- Issue date May 15, 2007
- ITX E-Globaledge Corporation
- Gontaro Kitazumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Keyboard type input device and portable information processor
- Patent number 6,876,354
- Issue date Apr 5, 2005
- Link Evolution Co., Ltd.
- Kazuhisa Terasaki
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SINGLE TRANSDUCER FULL DUPLEX TALKING CIRCUIT
- Publication number 20080170515
- Publication date Jul 17, 2008
- Matech, Inc.
- Masahisa Masuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Infrared communication adapter
- Publication number 20040029613
- Publication date Feb 12, 2004
- Gontaro Kitazumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication apparatus communication system and communication method
- Publication number 20040015693
- Publication date Jan 22, 2004
- Gontaro Kitazumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE