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Yoichi Nagata
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Yokohama, JP
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last 30 patents
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Patent Grant
Ultrasonic wave vibration apparatus for use in producing preform wi...
Patent number
4,779,563
Issue date
Oct 25, 1988
Agency of Industrial Science and Technology
Toshikatsu Ishikawa
B22 - CASTING POWDER METALLURGY
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Patent Grant
Method of producing a preform wire, sheet or tape fiber reinforced...
Patent number
4,649,060
Issue date
Mar 10, 1987
Agency of Industrial Science and Technology
Toshikatsu Ishikawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electromagnetic wave absorbers of silicon carbide fibers
Patent number
4,507,354
Issue date
Mar 26, 1985
Nippon Carbon Co., Ltd.
Toshikatsu Ishikawa
H01 - BASIC ELECTRIC ELEMENTS