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. 20, 1996
Filed:
May. 25, 1995
Mitsuhiro Kogure, Gumma-ken, JP;
Shinichi Nagashima, Tochigi-ken, JP;
Kazuhisa Wakabayashi, Gumma-ken, JP;
Shigeyuki Enkaku, Gumma-ken, JP;
Hitoshi Shimayama, Gumma-ken, JP;
Minoru Kimura, Gumma-ken, JP;
Shuji Shimoyama, Gumma-ken, JP;
Tsugio Yokoo, Gumma-ken, JP;
Mitsuba Electric Manufacturing Co., Ltd., Gumma-ken, JP;
Abstract
A plurality of square projections 26 are arranged in two mutually perpendicular directions at the pitch of P on to the surface of a plate member 27 between a first group of punched recesses 29a. The pitch P is twice the length of a side of each punched recess 29a. Shifted with respect to the first group of punched recesses 29a by P/2 in both the vertical and horizontal directions is a second group of punched recesses 29b. The punched recesses 29a and 29b define the projections 26 in the parts which are not occupied by these recesses generally in the pattern of a checker board. Because the projections 26 are separated from each other, and can effectively dissipate heat therefrom, the increase in the contact resistance due to heat generation can be prevented, and the efficiency of the starter motor can be increased.