Masahiro Okamura

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Vapor phase growth on semiconductor wafers
- Patent number 4,745,088
- Issue date May 17, 1988
- Hitachi, Ltd.
- Yosuke Inoue
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
High voltage thyristor with optimized doping, thickness, and sheet...
- Patent number 4,682,199
- Issue date Jul 21, 1987
- Hitachi, Ltd.
- Tsutomu Yatsuo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heat-conducting cooling module
- Patent number 4,649,990
- Issue date Mar 17, 1987
- Hitachi, Ltd.
- Yasutoshi Kurihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field controlled thyristor with double-diffused source region
- Patent number 4,514,747
- Issue date Apr 30, 1985
- Hitachi, Ltd.
- Kenji Miyata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermal fatigue resistant low-melting point solder alloys
- Patent number 4,491,562
- Issue date Jan 1, 1985
- Hitachi, Ltd.
- Tasao Soga
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High breakdown voltage semiconductor device
- Patent number 4,388,635
- Issue date Jun 14, 1983
- Hitachi, Ltd.
- Atsuo Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field controlled thyristor control circuit with additional FCT in r...
- Patent number 4,354,121
- Issue date Oct 12, 1982
- Hitachi, Ltd.
- Yoshio Terasawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Lateral field controlled thyristor
- Patent number 4,258,377
- Issue date Mar 24, 1981
- Hitachi, Ltd.
- Kenji Miyata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field controlled thyristor with dual resistivity field layer
- Patent number 4,223,328
- Issue date Sep 16, 1980
- Hitachi, Ltd.
- Yoshio Terasawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bidirectional light-activated thyristor having substrate optical is...
- Patent number 4,216,487
- Issue date Aug 5, 1980
- Hitachi, Ltd.
- Nobutake Konishi
- G02 - OPTICS
Information Patent Grant
Method of simultaneously controlling the lifetimes and leakage curr...
- Patent number 4,210,464
- Issue date Jul 1, 1980
- Hitachi, Ltd.
- Tomoyuki Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron irradiation process of glass passivated semiconductor devi...
- Patent number 4,201,598
- Issue date May 6, 1980
- Hitachi, Ltd.
- Tomoyuki Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bidirectional grooved thyristor fired by activation of the beveled...
- Patent number 4,110,781
- Issue date Aug 29, 1978
- Hitachi, Ltd.
- Nobutake Konishi
- G02 - OPTICS

Masahiro Okamura

Person

Patents Grantslast 30 patents

Vapor phase growth on semiconductor wafers

High voltage thyristor with optimized doping, thickness, and sheet...

Heat-conducting cooling module

Field controlled thyristor with double-diffused source region

Thermal fatigue resistant low-melting point solder alloys

High breakdown voltage semiconductor device

Field controlled thyristor control circuit with additional FCT in r...

Lateral field controlled thyristor

Field controlled thyristor with dual resistivity field layer

Bidirectional light-activated thyristor having substrate optical is...

Method of simultaneously controlling the lifetimes and leakage curr...

Electron irradiation process of glass passivated semiconductor devi...

Bidirectional grooved thyristor fired by activation of the beveled...