Tomoe Takamura

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lithium secondary battery, its electrolyte, and electric apparatus...
- Patent number 6,475,680
- Issue date Nov 5, 2002
- Hitachi, Ltd.
- Juichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorocompound, lubricant, surface modifier, lubricating film, magn...
- Patent number 6,323,163
- Issue date Nov 27, 2001
- Hitachi, Ltd.
- Hiroshi Sasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Magnetic disk and magnetic recording/reproduction apparatus
- Patent number 6,296,917
- Issue date Oct 2, 2001
- Hitachi, Ltd.
- Takayuki Nakakawaji
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording reproducer
- Patent number 5,985,403
- Issue date Nov 16, 1999
- Hitachi, Ltd.
- Takayuki Nakakawaji
- G11 - INFORMATION STORAGE
Information Patent Grant
Emulsion type liquid lubricant for metal forming, process for prepa...
- Patent number 4,657,685
- Issue date Apr 14, 1987
- Hitachi, Ltd.
- Takao Uematsu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant for metal forming and process for metal forming
- Patent number 4,612,127
- Issue date Sep 16, 1986
- Hitachi, Ltd.
- Takao Uematsu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...