Akira Hashimoto

Person

Ome, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Circuit breaker with parallel resistor
- Patent number 5,391,930
- Issue date Feb 21, 1995
- Hitachi, Ltd.
- Youichi Ohshita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum circuit breaker
- Patent number 5,379,014
- Issue date Jan 3, 1995
- Hitachi, Ltd.
- Takashi Sato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas blast, puffer type circuit breaker with improved nozzle
- Patent number 5,274,205
- Issue date Dec 28, 1993
- Hitachi, Ltd.
- Masanori Tsukushi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Scanning tunnel microscope equipped with scanning electron microscope
- Patent number 5,256,876
- Issue date Oct 26, 1993
- Hitachi Ltd.
- Eiichi Hazaki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Puffer-type gas circuit breaker
- Patent number 5,229,561
- Issue date Jul 20, 1993
- Hitachi, Ltd.
- Yasuharu Seki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Puffer type gas circuit interrupter
- Patent number 5,155,312
- Issue date Oct 13, 1992
- Hitachi, Ltd.
- Akira Hashimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Contact abnormality detecting system
- Patent number 4,975,800
- Issue date Dec 4, 1990
- Hitachi, Ltd.
- Youichi Oshita
- G01 - MEASURING TESTING
Information Patent Grant
Switch operation monitoring apparatus
- Patent number 4,864,286
- Issue date Sep 5, 1989
- Hitachi, Ltd.
- Youichi Ohshita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light-beam scanning apparatus
- Patent number 4,592,622
- Issue date Jun 3, 1986
- Hitachi Koki Co., Ltd.
- Akira Hashimoto
- G02 - OPTICS
Information Patent Grant
Optical system for information processing
- Patent number 4,561,717
- Issue date Dec 31, 1985
- Hitachi, Ltd.
- Keiji Kataoka
- G02 - OPTICS
Information Patent Grant
Optical system for an image pickup device
- Patent number 4,168,512
- Issue date Sep 18, 1979
- Hitachi, Ltd.
- Yoshitoshi Ito
- G02 - OPTICS

Akira Hashimoto

Person

Patents Grantslast 30 patents

Circuit breaker with parallel resistor

Vacuum circuit breaker

Gas blast, puffer type circuit breaker with improved nozzle

Scanning tunnel microscope equipped with scanning electron microscope

Puffer-type gas circuit breaker

Puffer type gas circuit interrupter

Contact abnormality detecting system

Switch operation monitoring apparatus

Light-beam scanning apparatus

Optical system for information processing

Optical system for an image pickup device