Kuniaki Kumamaru

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Chigasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device with multi-layered structure
- Patent number 4,542,400
- Issue date Sep 17, 1985
- Tokyo Shibaura Denki Kabushiki Kaisha
- Shunichi Hiraki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making integrated devices having long and short minority...
- Patent number 4,521,256
- Issue date Jun 4, 1985
- Tokyo Shibaura Denki Kabushiki Kaisha
- Shunichi Hiraki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with selective nitride layer over channel stop
- Patent number 4,485,393
- Issue date Nov 27, 1984
- Tokyo Shibaura Denki Kabushiki Kaisha
- Kuniaki Kumamaru
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor device utilizing outdiffusion...
- Patent number 4,379,726
- Issue date Apr 12, 1983
- Tokyo Shibaura Denki Kabushiki Kaisha
- Kuniaki Kumamaru
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorine-doped P type silicon
- Patent number 4,240,096
- Issue date Dec 16, 1980
- Tokyo Shibaura Denki Kabushiki Kaisha
- Shunichi Hiraki
- H01 - BASIC ELECTRIC ELEMENTS