Hiroyuki Sugawara

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Laser oscillator, laser resonator, and apparatus for manufacturing...
- Patent number 5,202,898
- Issue date Apr 13, 1993
- Hitachi, Ltd.
- Hiroyuki Sugawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal vapor laser apparatus
- Patent number 5,117,434
- Issue date May 26, 1992
- Hitachi, Ltd.
- Tuneyoshi Oohashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pulse power supply circuit
- Patent number 5,054,029
- Issue date Oct 1, 1991
- Hitachi, Ltd.
- Hiroyuki Sugawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum switch apparatus
- Patent number 5,038,082
- Issue date Aug 6, 1991
- Hitachi, Ltd.
- Hiroshi Arita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metallic vapor laser apparatus
- Patent number 4,991,180
- Issue date Feb 5, 1991
- Hitachi, Ltd.
- Motoo Yamaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser device with high-voltage pulse generator, high-voltage pulse...
- Patent number 4,818,892
- Issue date Apr 4, 1989
- Hitachi, Ltd.
- Tuneyoshi Oohashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gas laser device
- Patent number 4,740,980
- Issue date Apr 26, 1988
- Hitachi, Ltd.
- Toshiharu Shirakura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser generator
- Patent number 4,602,372
- Issue date Jul 22, 1986
- Hitachi, Ltd.
- Kouji Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser device
- Patent number 4,590,599
- Issue date May 20, 1986
- Hitachi, Ltd.
- Yukio Kawakubo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser device with plural electrode members on the upper gas flo...
- Patent number 4,541,097
- Issue date Sep 10, 1985
- Hitachi, Ltd.
- Kouji Kuwabara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube
- Patent number 4,503,357
- Issue date Mar 5, 1985
- Hitachi, Ltd.
- Koukichi Ouhata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser
- Patent number 4,500,998
- Issue date Feb 19, 1985
- Hitachi, Ltd.
- Kouji Kuwabara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of and apparatus for measuring laser beam
- Patent number 4,474,468
- Issue date Oct 2, 1984
- Hitachi, Ltd.
- Toshiharu Shirakura
- G01 - MEASURING TESTING
Information Patent Grant
Mirror supporting frame for gas laser oscillation apparatus
- Patent number 4,468,777
- Issue date Aug 28, 1984
- Hitachi, Ltd.
- Satoshi Takemori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum interrupter
- Patent number 4,427,857
- Issue date Jan 24, 1984
- Hitachi, Ltd.
- Nobuo Abe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Axis-monitoring apparatus for a laser beam
- Patent number 4,391,519
- Issue date Jul 5, 1983
- Hitachi, Ltd.
- Kouji Kuwabara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Coaxial type gas-flow laser device
- Patent number 4,351,052
- Issue date Sep 21, 1982
- Hitachi, Ltd.
- Kouji Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser device
- Patent number 4,331,939
- Issue date May 25, 1982
- Hitachi, Ltd.
- Kouji Kuwabara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas laser generating device of the longitudinal gas flow type
- Patent number 4,287,487
- Issue date Sep 1, 1981
- Hitachi, Ltd.
- Kouji Kuwabara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum-type circuit breaker
- Patent number 4,229,631
- Issue date Oct 21, 1980
- Hitachi, Ltd.
- Hideo Arakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
D.C. Circuit breaker
- Patent number 4,216,513
- Issue date Aug 5, 1980
- Hitachi, Ltd.
- Shunji Tokuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum-type circuit interrupter
- Patent number 4,210,790
- Issue date Jul 1, 1980
- Hitachi, Ltd.
- Yukio Kurosawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum interrupter
- Patent number 4,196,327
- Issue date Apr 1, 1980
- Hitachi, Ltd.
- Yukio Kurosawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum interrupter with pressure monitoring means
- Patent number 4,163,130
- Issue date Jul 31, 1979
- Hitachi, Ltd.
- Yoshiyuki Kubota
- H01 - BASIC ELECTRIC ELEMENTS

Hiroyuki Sugawara

Person

Patents Grantslast 30 patents

Laser oscillator, laser resonator, and apparatus for manufacturing...

Metal vapor laser apparatus

Pulse power supply circuit

Vacuum switch apparatus

Metallic vapor laser apparatus

Laser device with high-voltage pulse generator, high-voltage pulse...

Gas laser device

Gas laser generator

Gas laser device

Gas laser device with plural electrode members on the upper gas flo...

Cathode-ray tube

Gas laser

Method of and apparatus for measuring laser beam

Mirror supporting frame for gas laser oscillation apparatus

Vacuum interrupter

Axis-monitoring apparatus for a laser beam

Coaxial type gas-flow laser device

Gas laser device

Gas laser generating device of the longitudinal gas flow type

Vacuum-type circuit breaker

D.C. Circuit breaker

Vacuum-type circuit interrupter

Vacuum interrupter

Vacuum interrupter with pressure monitoring means