Masahiko Kawata

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device
- Patent number 5,668,402
- Issue date Sep 16, 1997
- Hitachi, Ltd.
- Kazuhiro Mochizuki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Semiconductor device having a heterojunction and a two dimensional...
- Patent number 5,381,027
- Issue date Jan 10, 1995
- Hitachi, Ltd.
- Toshiyuki Usagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hetero junction bipolar transistor with improved electrode wiring c...
- Patent number 5,296,733
- Issue date Mar 22, 1994
- Hitachi, Ltd.
- Chushiroh Kusano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device having a two-dimensional electron gas as an ac...
- Patent number 5,258,631
- Issue date Nov 2, 1993
- Hitachi, Ltd.
- Toshiyuki Usagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Solid film growth apparatus
- Patent number 5,025,751
- Issue date Jun 25, 1991
- Hitachi, Ltd.
- Shinichiro Takatani
- C30 - CRYSTAL GROWTH
Information Patent Grant
Photo semiconductor device
- Patent number 4,740,819
- Issue date Apr 26, 1988
- Hitachi, Ltd.
- Hirobumi Ouchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting devices
- Patent number 4,212,021
- Issue date Jul 8, 1980
- Hitachi, Ltd.
- Yuichi Ono
- G02 - OPTICS
Information Patent Grant
Semiconductor light-emitting element
- Patent number 4,122,486
- Issue date Oct 24, 1978
- Hitachi, Ltd.
- Yuichi Ono
- H01 - BASIC ELECTRIC ELEMENTS

Masahiko Kawata

Person

Patents Grantslast 30 patents

Semiconductor device

Semiconductor device having a heterojunction and a two dimensional...

Hetero junction bipolar transistor with improved electrode wiring c...

Semiconductor device having a two-dimensional electron gas as an ac...

Solid film growth apparatus

Photo semiconductor device

Light emitting devices

Semiconductor light-emitting element