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Patents Grants
last 30 patents
Information
Patent Grant
Sodium-sulphur battery system and driving method thereof
Patent number
6,522,103
Issue date
Feb 18, 2003
Hitachi, Ltd.
Tadahiko Miyoshi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
Electric power system using an electric power storing secondary bat...
Patent number
6,323,620
Issue date
Nov 27, 2001
Hitachi, Ltd.
Tadahiko Miyoshi
G01 - MEASURING TESTING
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
Apparatus for handling constituent elements of reactor core
Patent number
4,885,123
Issue date
Dec 5, 1989
Hitachi, Ltd.
Hisaaki Ikeuchi
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Patents Applications
last 30 patents
Information
Patent Application
Sodium-sulfur battery
Publication number
20030108788
Publication date
Jun 12, 2003
Tadahiko Miyoshi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
System and method for providing information on secondary batteries...
Publication number
20020123850
Publication date
Sep 5, 2002
Hitachi, Ltd.
Tadahiko Miyoshi
G01 - MEASURING TESTING