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:
Nov. 23, 2021
Filed:
Oct. 05, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Yuta Moriya, Chigasaki, JP;
Tatsurou Fujii, Kawasaki, JP;
Tomohiro Shima, Yokohama, JP;
Koki Kodaira, Yorktown, VA (US);
Hitoshi Nakashige, Mitaka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A resin shaping mold includes a hot runner, a cavity, a cold runner, and a valve pin. The cold runner is connected to the hot runner and the cavity. The cold runner has a lower temperature than the hot runner. The valve pin configured to move forward and backward from the hot runner toward the cold runner and close a channel of molten resin from the hot runner to the cavity at a predetermined position. The valve pin includes a runner lock portion configured to hold resin solidified at a position further on the cavity side with respect to the predetermined position in the cold runner.