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Masamichi Obitsu
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Funabashi, JP
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last 30 patents
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Patent Grant
Zirconia ceramics
Patent number
5,279,995
Issue date
Jan 18, 1994
Nissan Chemical Industries, Ltd.
Hiroaki Tanaka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Preparation of zirconia sintered body
Patent number
5,248,463
Issue date
Sep 28, 1993
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Zirconia sol and method for making the same
Patent number
5,223,176
Issue date
Jun 29, 1993
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Sintered body of light transmitting cordierite and a method of prep...
Patent number
5,177,033
Issue date
Jan 5, 1993
Agency of Industrial Science and Technology
Masanobu Awano
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for manufacturing fine zirconium oxide powder
Patent number
4,985,229
Issue date
Jan 15, 1991
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for preventing hardened cementitious material from deteriora...
Patent number
4,559,241
Issue date
Dec 17, 1985
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicate containing agent and cement surface modified with said agent
Patent number
4,521,249
Issue date
Jun 4, 1985
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Agent and method for modifying surface layer of cement structures
Patent number
4,443,496
Issue date
Apr 17, 1984
Nissan Chemical Industries, Ltd.
Masamichi Obitsu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES