Hitoshi Hasegawa

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Kounan, JP

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Patents Grantslast 30 patents

Information Patent Grant
Press-forming die for glass elements
- Patent number 6,354,111
- Issue date Mar 12, 2002
- NGK Insulators Ltd.
- Takashi Ota
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Heat-fused unitary ferrule and method for producing the same
- Patent number 6,103,344
- Issue date Aug 15, 2000
- NGK Insulators, Ltd.
- Takashi Ota
- B32 - LAYERED PRODUCTS