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. 04, 2010
Filed:
Mar. 21, 2008
Hideyuki Ogawa, Nagano-ken, JP;
Koichi Saito, Nagano-ken, JP;
Nagamitsu Takashima, Nagano-ken, JP;
Katsunori Ono, Nagano-ken, JP;
Hideyuki Ogawa, Nagano-ken, JP;
Koichi Saito, Nagano-ken, JP;
Nagamitsu Takashima, Nagano-ken, JP;
Katsunori Ono, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The invention is directed to a method of working a small recess portion. In the method, prior to press-forming small recess portions arrayed in a row by pressing a predetermined number of pieces of aligned male dies to a metal base plate, the metal base plate is previously formed with a highly rigid portion at a predetermined portion at a vicinity of an imaginary line extending in a row direction along end portions of predicted press portions to which the respective male dies are pressed.