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Masaru Watanabe
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Yokohama, JP
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last 30 patents
Information
Patent Grant
Electric motor
Patent number
5,714,826
Issue date
Feb 3, 1998
Jidosha Denki Kogyo Kabushiki Kaisha
Sumio Furukawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus for preheating the ends of upset steel pipes
Patent number
4,477,708
Issue date
Oct 16, 1984
Nippon Kokan Kabushiki Kaisha
Shigeru Sano
C21 - METALLURGY OF IRON
Information
Patent Grant
Speaker diaphragm assembly and a method of manufacturing the same
Patent number
4,395,597
Issue date
Jul 26, 1983
Victor Company of Japan, Limited
Kiyoaki Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Moving voice coil loudspeaker, peripheral diaphragm support, diaphr...
Patent number
4,384,174
Issue date
May 17, 1983
Victor Company of Japan, Limited
Kiyoaki Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE