Keitaro Fukui

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Ohi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polycrystalline silicon thin film and transistor using the same
- Patent number 5,177,578
- Issue date Jan 5, 1993
- Tonen Corporation
- Hisashi Kakinoki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for forming oxide superconducting films with an ultrasonic w...
- Patent number 5,002,928
- Issue date Mar 26, 1991
- Toa Nenryo Kogyo Kabushiki Kaisha
- Keitaro Fukui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making graded junction containing amorphous semiconductor...
- Patent number 4,742,012
- Issue date May 3, 1988
- Toa Nenryo Kogyo K.K.
- Mitsuo Matsumura
- H01 - BASIC ELECTRIC ELEMENTS