Akihiro Tsuji

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Iwatsuki, JP

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Patents Grantslast 30 patents

Information Patent Grant
PON system, station side apparatus, and subscriber side apparatus
- Patent number 9,918,150
- Issue date Mar 13, 2018
- Mitsubishi Electric Corporation
- Akihiro Tsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key switch
- Patent number 6,710,272
- Issue date Mar 23, 2004
- Polymatech Co., Ltd.
- Akihiro Tsuji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laminate key sheet
- Patent number 6,572,950
- Issue date Jun 3, 2003
- Polymatech Co., Ltd.
- Akihiro Tsuji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method for key tops
- Patent number 5,820,809
- Issue date Oct 13, 1998
- Polymatech Co., Ltd.
- Hiroshi Yajima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION APPARATUS
- Publication number 20130236170
- Publication date Sep 12, 2013
- Mitsubishi Electric Corporation
- Takashi Nishitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PON SYSTEM, STATION SIDE APPARATUS, AND SUBSCRIBER SIDE APPARATUS
- Publication number 20120063770
- Publication date Mar 15, 2012
- Mitsubishi Electric Corporation
- Akihiro Tsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, AND SLAVE STATION AP...
- Publication number 20110267974
- Publication date Nov 3, 2011
- Mitsubishi Electric Corporation
- Seiji Kozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Key switch
- Publication number 20020056613
- Publication date May 16, 2002
- Akihiro Tsuji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Laminate key sheet
- Publication number 20010052380
- Publication date Dec 20, 2001
- Akihiro Tsuji
- H01 - BASIC ELECTRIC ELEMENTS