Masafumi Doi

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nonvolatile semiconductor memory device and method for driving the...
- Patent number 6,657,893
- Issue date Dec 2, 2003
- Matsushita Electric Industrial Co., Ltd.
- Keita Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device having a voltage-regulator device
- Patent number 6,583,453
- Issue date Jun 24, 2003
- Matsushita Electric Industrial Co., Ltd.
- Hirotsugu Honda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nonvolatile semiconductor memory device and method for driving the...
- Patent number 6,377,490
- Issue date Apr 23, 2002
- Matsushita Electronics Corporation
- Keita Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device comprising a memory transis...
- Patent number 6,169,307
- Issue date Jan 2, 2001
- Matsushita Electronics Corporation
- Keita Takahashi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor device having a voltage-regulator device
- Publication number 20020123185
- Publication date Sep 5, 2002
- Matsushita Electric Industrial Co., Ltd.
- Hirotsugu Honda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nonvolatile semiconductor memory device and method for driving the...
- Publication number 20020064071
- Publication date May 30, 2002
- Matsushita Electronics Corporation
- Keita Takahashi
- H01 - BASIC ELECTRIC ELEMENTS