Hiroki Tonai

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Yokohama-Shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silicon nitride wear resistant member and method of manufacturing t...
- Patent number 6,784,131
- Issue date Aug 31, 2004
- Kabushiki Kaisha Toshiba
- Michiyasu Komatsu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Material for ceramic ball and method of manufacturing ceramic ball
- Patent number 6,485,830
- Issue date Nov 26, 2002
- Kabushiki Kaisha Toshiba
- Hiroshi Komorita
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Wear resistant member for electronic equipment and bearing and spin...
- Patent number 6,475,940
- Issue date Nov 5, 2002
- Kabushiki Kaisha Toshiba
- Yukihiro Takenami
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Silicon nitride wear resistant member and method of manufacturing t...
- Publication number 20020136908
- Publication date Sep 26, 2002
- Kabushiki Kaisha Toshiba
- Michiyasu Komatsu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Wear resistant member for electronic equipment and bearing and spin...
- Publication number 20020013211
- Publication date Jan 31, 2002
- Kabushiki Kaisha Toshiba
- Yukihiro Takenami
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES