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:
Aug. 09, 2005
Filed:
Sep. 24, 2001
Naoya Hashimoto, Tokyo, JP;
Teruo Miyaoku, Tokyo, JP;
Shiro Hasegawa, Tokyo, JP;
Chiaki Sugano, Tokyo, JP;
Hiromasa Ozawa, Tokyo, JP;
Hirohisa Ohta, Tokyo, JP;
Naoya Hashimoto, Tokyo, JP;
Teruo Miyaoku, Tokyo, JP;
Shiro Hasegawa, Tokyo, JP;
Chiaki Sugano, Tokyo, JP;
Hiromasa Ozawa, Tokyo, JP;
Hirohisa Ohta, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A stepping motor being a motor used in oil includes a coil formed with a conductor coated with an outer coating and wound around a bobbin, and coil terminals electrically connected to the conductor at ends thereof led out from the coil, the outer coating being removed from the conductor at the ends thereof. The coil terminals are coated with a protective film made of a material having low permeability to elemental sulfur and sulfur compounds. Therefore, coil terminals and ends of the conductor are prevented from erosion by sulfur and organic sulfur compounds, thereby reducing risk of disconnection in the coil terminals and the conductor.