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:
Mar. 09, 2021
Filed:
Apr. 20, 2017
Seiji Kagawa, Koshigaya, JP;
Atsuko Kagawa, Koshigaya, JP;
Seiji Kagawa, Koshigaya, JP;
Yoichiro Kagawa, Koshigaya, JP;
Other;
Abstract
An apparatus for producing a microporous plastic film comprising a pattern roll having large numbers of high-hardness, fine particles; an anvil roll opposing the pattern roll; a conveying means for passing a plastic film through a gap of both rolls; a stationary frame rotatably supporting one of both rolls; a pair of laterally arranged movable frames rotatably supporting the other roll; and a pair of laterally arranged carriages to each of which each of the movable frames is fixed; at least one of the carriages moving in a running direction of the plastic film to generate positional difference between a pair of the movable frames, so that the center axes of both rolls are relatively inclined to each other.