Hirotaka Hagihara

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Nishiokitama-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor wafer treatment member
- Patent number 7,255,775
- Issue date Aug 14, 2007
- Toshiba Ceramics Co., Ltd.
- Masanari Yokogawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Carbon electrode for melting quartz glass and method of fabricating...
- Patent number 6,363,098
- Issue date Mar 26, 2002
- Toshiba Ceramics Co., Ltd.
- Hirotaka Hagihara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor wafer treatment member
- Publication number 20040089236
- Publication date May 13, 2004
- TOSHIBA CERAMICS CO., LTD.
- Masanari Yokogawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wafer processing member
- Publication number 20030089458
- Publication date May 15, 2003
- TOSHIBA CERAMICS CO., LTD.
- Hirotaka Hagihara
- H01 - BASIC ELECTRIC ELEMENTS