Masahiro Katayama

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Maebashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic apparatus
- Patent number 8,782,300
- Issue date Jul 15, 2014
- Sanken Electric Co., Ltd.
- Ayumi Hiromatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor integrated circuit device, method of testing semicond...
- Patent number 7,162,671
- Issue date Jan 9, 2007
- Hitachi, Ltd.
- Masatoshi Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor integrated circuit device, method of testing semicond...
- Patent number 6,794,678
- Issue date Sep 21, 2004
- Hitachi, Ltd.
- Masatoshi Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
High speed clock synchronous semiconductor memory in which the colu...
- Patent number 6,570,800
- Issue date May 27, 2003
- Hitachi, Ltd.
- Yousuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory
- Patent number 5,598,372
- Issue date Jan 28, 1997
- Hitachi, Ltd.
- Miki Matsumoto
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Semiconductor memory system
- Patent number 5,598,373
- Issue date Jan 28, 1997
- Hitachi, Ltd.
- Shoji Wada
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Electronic Apparatus
- Publication number 20130145084
- Publication date Jun 6, 2013
- Hitachi ULSI Systems Co., Ltd.
- Ayumi HIROMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Semiconductor integrated circuit device, method of testing semicond...
- Publication number 20050018461
- Publication date Jan 27, 2005
- Hitachi, Ltd.
- Masatoshi Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor integrated circuit device, method of testing semicond...
- Publication number 20020118018
- Publication date Aug 29, 2002
- Masatoshi Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device
- Publication number 20010007539
- Publication date Jul 12, 2001
- Yousuke Tanaka
- G11 - INFORMATION STORAGE