The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2011
Filed:
Mar. 30, 2006
Tomomi Hasegawa, Chiba, JP;
Futoshi Yonekawa, Chiba, JP;
Akihiro Fujita, Hyogo, JP;
Yoshihiro Jizo, Hyogo, JP;
Yoshifumi Itabashi, Hyogo, JP;
Keizo Yoshikawa, Tochigi, JP;
Tsuyoshi Fujimoto, Tokyo, JP;
Hiromori Ishihara, Aichi, JP;
Nobuhiko Mizuno, Shizuoka, JP;
Tomomi Hasegawa, Chiba, JP;
Futoshi Yonekawa, Chiba, JP;
Akihiro Fujita, Hyogo, JP;
Yoshihiro Jizo, Hyogo, JP;
Yoshifumi Itabashi, Hyogo, JP;
Keizo Yoshikawa, Tochigi, JP;
Tsuyoshi Fujimoto, Tokyo, JP;
Hiromori Ishihara, Aichi, JP;
Nobuhiko Mizuno, Shizuoka, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Mitsubishiki Denki Kabushiki Kaisha, Tokyo, JP;
Central Japan Railway Company, Nagoya-shi, JP;
Abstract
A ground coil device for a magnetic levitation railway that can be manufactured with a high productivity and exhibit less fluctuation in strength, reduced weight, and good recyclability, and a process for manufacturing the device. The ground coil device includes a coil conductor covered with a thermoplastic resin molding material containing 100 parts by mass of a thermoplastic resin, from 20 to 200 parts by mass of an inorganic filler, and from 0 to 25 parts by mass of an elastomer. A process for producing the ground coil device for magnetic levitation railway includes filling the thermoplastic resin molding material into a cavity of a metal mold into which the coil conductor is previously inserted, by an injection molding method, to obtain an integrally molded product.