Hitoo Iwasa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pure green light emitting diodes and method of manufacturing the same
- Patent number 4,965,644
- Issue date Oct 23, 1990
- Matsushita Electric Industrial Co., Ltd.
- Toshiharu Kawabata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing green light emitting diodes
- Patent number 4,671,829
- Issue date Jun 9, 1987
- Matsushita Electric Industrial Co., Ltd.
- Toshiharu Kawabata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Substrate holder for liquid phase epitaxial growth
- Patent number 4,354,453
- Issue date Oct 19, 1982
- Matsushita Electric Industrial Co., Ltd.
- Susumu Koike
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of making a light emitting diode
- Patent number 4,300,960
- Issue date Nov 17, 1981
- Matsushita Electric Industrial Co., Ltd.
- Susumu Koike
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for growing semiconductor epitaxial layers
- Patent number 4,268,327
- Issue date May 19, 1981
- Matsushita Electric Industrial Co., Ltd.
- Tamotsu Uragaki
- C30 - CRYSTAL GROWTH
Information Patent Grant
Etching of gallium stains in liquid phase epitoxy
- Patent number 4,256,520
- Issue date Mar 17, 1981
- Matsushita Electric Industrial Co., Ltd.
- Susumu Koike
- H01 - BASIC ELECTRIC ELEMENTS