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:
Jun. 12, 2007
Filed:
Jan. 03, 2005
Shigeru Kikuchi, Hitachi, JP;
Masato Kobayashi, Hitachi, JP;
Kenji Tsuchiya, Hitachi, JP;
Noboru Baba, Hitachiota, JP;
Takashi Sato, Hitachi, JP;
Shigeru Kikuchi, Hitachi, JP;
Masato Kobayashi, Hitachi, JP;
Kenji Tsuchiya, Hitachi, JP;
Noboru Baba, Hitachiota, JP;
Takashi Sato, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric contact member which is excellent in voltage-proof performance and melt-resistant performance and excellent in mass productivity, and a method of manufacturing thereof, and a vacuum interrupter, a vacuum circuit breaker and a load-break switch for a road side transformer using thereof. The contact member is composed of a base member made of high conductive metal, and a contact layer made of refractory metal and high conductive metal, and the contact layer is formed of a plurality of thermal sprayed layers.