Kiichi Ueyanagi

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Field effect transistor
- Patent number 5,132,752
- Issue date Jul 21, 1992
- Hitachi, Ltd.
- Yasunari Umemoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field effect transistor with alpha particle protection
- Patent number 5,124,770
- Issue date Jun 23, 1992
- Hitachi, Ltd.
- Yasunari Umemoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 4,683,487
- Issue date Jul 28, 1987
- Hitachi, Ltd.
- Kiichi Ueyanagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor member and semiconductor device employing the same
- Patent number 4,672,406
- Issue date Jun 9, 1987
- Hitachi, Ltd.
- Yasushi Sawada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor device utilizing multilayer mask
- Patent number 4,561,169
- Issue date Dec 31, 1985
- Hitachi, Ltd.
- Masaru Miyazaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Self-aligned manufacture of FET
- Patent number 4,546,540
- Issue date Oct 15, 1985
- Hitachi, Ltd.
- Kiichi Ueyanagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating field effect transistors
- Patent number 4,503,599
- Issue date Mar 12, 1985
- Hitachi, Ltd.
- Kiichi Ueyanagi
- H01 - BASIC ELECTRIC ELEMENTS