Hiroshi Kaya

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Niiza, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing ceramic products
- Patent number 5,459,114
- Issue date Oct 17, 1995
- Tonen Corporation
- Hiroshi Kaya
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride-based fibers and composite material reinforced with...
- Patent number 5,151,390
- Issue date Sep 29, 1992
- Toa Nenryo Kogyo Kabushiki Kaisha
- Hiroyuki Aoki
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Molded articles formed of silicon nitride based ceramic and process...
- Patent number 5,145,812
- Issue date Sep 8, 1992
- Toa Nenryo Kogyo Kabushiki Kaisha
- Mikiro Arai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hydrotreating catalysts
- Patent number 5,094,993
- Issue date Mar 10, 1992
- Tonen Corporation
- Tadashi Miura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hydrotreating catalyst and process of manufacture
- Patent number 4,837,193
- Issue date Jun 6, 1989
- Toa Nenryo Kogyo Kabushiki Kaisha
- Ikuo Akizuki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for producing nitride-base ceramics
- Patent number 4,833,107
- Issue date May 23, 1989
- Toa Nenryo Kogyo Kabushiki Kaisha
- Hiroshi Kaya
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES