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:
Jul. 22, 2003
Filed:
Nov. 08, 1999
Kazuhiko Bandoh, Kyoto, JP;
Michio Osada, Kyoto, JP;
Tsuyoshi Amakawa, Kyoto, JP;
Yoshihiko Kojima, Kyoto, JP;
Fumio Takashima, Kyoto, JP;
Kouichi Kawamura, Kyoto, JP;
Towa Corporation, Kyoto, JP;
Abstract
A method of processing a leadframe involves steps of transporting a leadframe to load it into a lead processing unit including plural sets of processing presses; adjusting a press pitch of the processing presses according to a work pitch of workpieces on the leadframe by rotating a nut member that is coupled to at least one of the processing presses and engaged on a non-rotating screw shaft extending in the transport direction of the leadframe, so that the nut member moves along the screw shaft and the respective processing press coupled thereto moves with the nut member; and performing a predetermined lead processing on the leadframe using the processing presses after the step of adjusting the press pitch.