Hirokazu Takasaki

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Coil impregnant of epoxy resin from polyhydric phenol mixture
- Patent number 5,656,350
- Issue date Aug 12, 1997
- Hitachi, Ltd.
- Toru Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Epoxy resin composition for insulating a coil, and a coil molded fr...
- Patent number 5,393,805
- Issue date Feb 28, 1995
- Hitachi, Ltd.
- Toru Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermosetting resin composition for casting high-voltage coil, and...
- Patent number 5,324,767
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Tohru Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin molded stators
- Patent number 4,352,897
- Issue date Oct 5, 1982
- Hitachi, Ltd.
- Masatsugu Ogata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...