Hiroaki Kotaka

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing aluminum nitride
- Patent number 5,817,274
- Issue date Oct 6, 1998
- Toshiba Ceramics Co., Ltd.
- Hiroaki Kotaka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Surface treatment method for quartz material
- Patent number 5,554,204
- Issue date Sep 10, 1996
- Toshiba Ceramics Co., Ltd.
- Hiroaki Kotaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of manufacturing aluminum borate whiskers having a reformed...
- Patent number 5,479,873
- Issue date Jan 2, 1996
- Toyota Jidosha Kabushiki Kaisha
- Yoshitomo Shintani
- C30 - CRYSTAL GROWTH