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. 23, 2006
Filed:
Jun. 17, 2004
Kouji Kitahata, Osaka, JP;
Takeshi Tojo, Osaka, JP;
Katsura Koyagi, Osaka, JP;
Takanori Kurokawa, Nara, JP;
Atsuo Suehiro, Aichi, JP;
Yoshifumi Niide, Aichi, JP;
Kouichi Taniguchi, Gifu, JP;
Shingo Nakamura, Aichi, JP;
Kouji Kitahata, Osaka, JP;
Takeshi Tojo, Osaka, JP;
Katsura Koyagi, Osaka, JP;
Takanori Kurokawa, Nara, JP;
Atsuo Suehiro, Aichi, JP;
Yoshifumi Niide, Aichi, JP;
Kouichi Taniguchi, Gifu, JP;
Shingo Nakamura, Aichi, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
After forming a primary powder bed (i.e., powder layer) at a toothed portion of an article, such as a gear or a spline shaft, by electrostatic powder coating process, the powder bed/layer is removed from crests of teeth in the toothed portion by a specified thickness by scraping it off while sucking up the scraped powder. Next, the electrostatic powder coating process is performed again to form a secondary powder bed/layer over the entire surface of the toothed portion. Then, the primary and secondary powder beds/layers are melted or fused by induction heating to thereby form a coating film of a substantially uniform thickness.