Hajime Umehara

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for measuring thickness of layer using acousti...
- Patent number 5,663,502
- Issue date Sep 2, 1997
- Hitachi, Ltd.
- Yoshiaki Nagashima
- G01 - MEASURING TESTING
Information Patent Grant
Fuel assembly and nuclear reactor
- Patent number 5,640,435
- Issue date Jun 17, 1997
- Hitachi, Ltd.
- Hideki Kurosaki
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Fuel assembly and nuclear reactor
- Patent number 5,617,456
- Issue date Apr 1, 1997
- Hitachi, Ltd.
- Hideki Kurosaki
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Nuclear fuel assembly and core
- Patent number 5,388,132
- Issue date Feb 7, 1995
- Hitachi, Ltd.
- Motoo Aoyama
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Fuel assembly
- Patent number 5,265,139
- Issue date Nov 23, 1993
- Hitachi, Ltd.
- Yoshihiko Yanagi
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Fuel assembly
- Patent number 5,128,098
- Issue date Jul 7, 1992
- Hitachi, Ltd.
- Shozo Nakamura
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Fuel spacer of separate cell type and manufacturing method therefor
- Patent number 4,985,199
- Issue date Jan 15, 1991
- Hitachi, Ltd.
- Makoto Irube
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Nuclear reactor fuel assembly
- Patent number 4,842,814
- Issue date Jun 27, 1989
- Hitachi, Ltd.
- Iwao Takase
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Method of producing composite nuclear fuel cladding
- Patent number 4,766,658
- Issue date Aug 30, 1988
- Hitachi, Ltd.
- Toshihiro Matsumoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for producing zirconium-based alloy
- Patent number 4,689,091
- Issue date Aug 25, 1987
- Hitachi, Ltd.
- Toshimi Yoshida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for producing zirconium-based alloy and the product thereof
- Patent number 4,678,521
- Issue date Jul 7, 1987
- Hitachi, Ltd.
- Toshimi Yoshida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing high-purity metal member
- Patent number 4,627,148
- Issue date Dec 9, 1986
- Hitachi, Ltd.
- Hiromichi Imahashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Hajime Umehara

Person

Patents Grantslast 30 patents

Method and apparatus for measuring thickness of layer using acousti...

Fuel assembly and nuclear reactor

Fuel assembly and nuclear reactor

Nuclear fuel assembly and core

Fuel assembly

Fuel assembly

Fuel spacer of separate cell type and manufacturing method therefor

Nuclear reactor fuel assembly

Method of producing composite nuclear fuel cladding

Process for producing zirconium-based alloy

Process for producing zirconium-based alloy and the product thereof

Method of producing high-purity metal member