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Yoshito Fujiwara
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Kawasaki, JP
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last 30 patents
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Patent Grant
Austenite stainless steel
Patent number
5,858,129
Issue date
Jan 12, 1999
Nippon Yakin Kogyo Co., Ltd.
Yutaka Kobayashi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Stainless steels for coins and method of producing coins of stainle...
Patent number
5,614,149
Issue date
Mar 25, 1997
Nippon Yakin Kogyo Co., Ltd.
Hiroshi Abe
C21 - METALLURGY OF IRON
Information
Patent Grant
Ferritic stainless steel for heat exchanger
Patent number
5,512,239
Issue date
Apr 30, 1996
Tokyo Radiator Mfg. Co., Ltd
Yoshito Fujiwara
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Ferritic stainless steel having an excellent oxidation resistance
Patent number
5,480,608
Issue date
Jan 2, 1996
Nippon Yakin Kogyo Co., Ltd.
Masaomi Tsuda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Exterior protective member made of austenitic stainless steel for a...
Patent number
4,808,371
Issue date
Feb 28, 1989
Nippon Yakin Kogyo Co., Ltd.
Toshihiko Taniuchi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Ni-based alloy excellent in intergranular corrosion resistance, str...
Patent number
4,626,408
Issue date
Dec 2, 1986
Nippon Yakin Kogyo Kabushiki Kaisha
Koichiro Osozawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...