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:
Oct. 30, 2007
Filed:
May. 22, 2006
Masanori Kawai, Toyota, JP;
Kazunori Noba, Toyota, JP;
Toshi Saeki, Toyota, JP;
Takahisa Morita, Higashiosaka, JP;
Norikazu Morita, Higashiosaka, JP;
Haruo Morita, Higashiosaka, JP;
Masanori Kawai, Toyota, JP;
Kazunori Noba, Toyota, JP;
Toshi Saeki, Toyota, JP;
Takahisa Morita, Higashiosaka, JP;
Norikazu Morita, Higashiosaka, JP;
Haruo Morita, Higashiosaka, JP;
Kojima Press Industry Co. Ltd., Toyota-Shi, JP;
Abstract
An apparatus for producing a battery case which has a tubular shape with a closed end and which houses an electricity-generating element, the apparatus including: a die assembly including a blanking die, a drawing die, a redrawing die and an ironing die which have respective die holes having mutually different sizes and which are immovably and coaxially arranged in series in the order of the sizes of the die holes; a first punch, a second punch and a third punch which are disposed coaxially with respect to the die assembly such that the first through third punches can be inserted into the corresponding die holes of the respective dies; and a moving mechanism which permits the first through third punches to be inserted into the corresponding die holes.