Masaki Yoshii

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Epoxy resin molding material for sealing use and semiconductor device
- Patent number 7,397,139
- Issue date Jul 8, 2008
- Hitachi Chemical Co., Ltd.
- Ryoichi Ikezawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection type stereoscopic image display system
- Patent number 5,162,897
- Issue date Nov 10, 1992
- Hitachi, Ltd.
- Hiroshi Jitsukata
- G02 - OPTICS
Information Patent Grant
Optical information medium with sample mark area and multiple trans...
- Patent number 4,991,163
- Issue date Feb 5, 1991
- Hitachi, Ltd.
- Nobuhiro Tokushuku
- G11 - INFORMATION STORAGE
Information Patent Grant
Photoelastic effect measuring device
- Patent number 4,810,089
- Issue date Mar 7, 1989
- Hitachi, Ltd.
- Takeo Murakoshi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring photoelasticity
- Patent number 4,786,802
- Issue date Nov 22, 1988
- Hitachi, Ltd.
- Masaki Yoshii
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for molding plastic
- Patent number 4,411,609
- Issue date Oct 25, 1983
- Hitachi, Ltd.
- Masaki Yoshii
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Epoxy resin molding material for sealing use and semiconductor device
- Publication number 20060214153
- Publication date Sep 28, 2006
- Ryoichi Ikezawa
- H01 - BASIC ELECTRIC ELEMENTS