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Shigeoki Nishimura
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Sodium-sulfur battery, and a battery system using same
Patent number
6,329,099
Issue date
Dec 11, 2001
Hitachi, Ltd.
Tetsuo Oyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Sodium-sulfur secondary battery
Patent number
6,245,455
Issue date
Jun 12, 2001
Hitachi, Ltd.
Kazushige Kohno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sodium-sulfur battery, and a battery system using same
Patent number
5,962,160
Issue date
Oct 5, 1999
Hitachi, Ltd.
Tetsuo Oyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Polymer electrolyte hydrogen-oxygen fuel cell where the polymer ele...
Patent number
5,500,292
Issue date
Mar 19, 1996
Hitachi, Ltd.
Yasushi Muranaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Secondary cell
Patent number
4,879,192
Issue date
Nov 7, 1989
Hitachi Ltd.
Shigeoki Nishimura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Secondary battery
Patent number
4,559,284
Issue date
Dec 17, 1985
Showa Denko K.K.
Shigeoki Nishimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sheet-shaped polymer secondary battery of layer built type
Patent number
4,518,665
Issue date
May 21, 1985
Hitachi, Ltd.
Kazunori Fujita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for removing crud from ion exchange resin
Patent number
4,389,253
Issue date
Jun 21, 1983
Hitachi, Ltd.
Shigeoki Nishimura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Apparatus for detecting change in water quality
Patent number
4,220,858
Issue date
Sep 2, 1980
Hitachi, Ltd.
Takashi Ikeguchi
G01 - MEASURING TESTING
Information
Patent Grant
Method of treatment of waste water containing sulfur compounds
Patent number
4,154,673
Issue date
May 15, 1979
Hitachi, Ltd.
Kouji Otani
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE