Kenji Maruta

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Kitakyusyu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sintered body of conductive sialon and heating element made thereof
- Patent number 5,108,659
- Issue date Apr 28, 1992
- Hitachi Metals, Ltd.
- Sachio Ogasawara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing a wear-resistant compound roll
- Patent number 5,106,576
- Issue date Apr 21, 1992
- Hitachi Metals, Ltd.
- Akira Noda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Wear-resistant compound roll
- Patent number 5,053,284
- Issue date Oct 1, 1991
- Hitachi Metals, Ltd.
- Akira Noda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Glow plug for diesel engine
- Patent number 4,929,813
- Issue date May 29, 1990
- Jidosha Kiki Co., Ltd.
- Mitusuke Masaka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Diesel engine glow plug having SiALON heater
- Patent number 4,914,274
- Issue date Apr 3, 1990
- Jidosha Kiki Co., Ltd.
- Koji Hatanaka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Glow plug for diesel engines
- Patent number 4,810,853
- Issue date Mar 7, 1989
- Hitachi Metals Ltd.
- Kenji Maruta
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS