Hiroyuki Hara

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Omuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carbon black, method for its preparation and its applications
- Patent number 6,403,697
- Issue date Jun 11, 2002
- Denki Kagaku Kogyo Kabushiki Kaisha
- Toshikatsu Mitsunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of using hexagonal system boron nitride powder
- Patent number 6,096,671
- Issue date Aug 1, 2000
- Denki Kagaku Kogyo Kabushiki Kaisha
- Takashi Kawasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hexagonal system boron nitride powder
- Patent number 5,854,155
- Issue date Dec 29, 1998
- Denki Kagaku Kogyo Kabushiki Kaisha
- Takashi Kawasaki
- C07 - ORGANIC CHEMISTRY