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. 12, 2021
Filed:
Jun. 18, 2019
Tokiwa Chemical Industries Co., Ltd., Chiba, JP;
Takashi Hirokawa, Chiba, JP;
Naohisa Miyakawa, Chiba, JP;
TOKIWA CHEMICAL INDUSTRIES CO., LTD., Chiba, JP;
TOKIWA KEISEI CO., LTD., Chiba, JP;
Abstract
A method for producing an extrusion molded product, wherein the method uses a holder () for feeding a core material (), the holder () being provided with cutting guide holes () through which cutting blades () go to form grooves () in the core material (); when rotary bodies () provided with the cutting blades () start rotating, the core material () and the holder () stand by at a predetermined standby position that does not enable the cutting blades () to cut the core material (); and when the rotation speeds of the rotary bodies () reach predetermined rotation speeds, the holder () is or the rotary bodies () are moved so that the cutting blades () can start cutting the core material () proceeding through the holder (), and then the cutting blades () form a plurality of grooves () in the core material ().