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:
Aug. 11, 2026
Filed:
Mar. 15, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Akira Suzuki, Kanagawa, JP;
Toshiki Kobayashi, Kanagawa, JP;
Junichi Matsumura, Shizuoka, JP;
Kengo Nakajima, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A manufacturing apparatus includes an injection cylinder to which molten resin is supplied and which is configured to inject molten resin, an injection plunger disposed such that the injection plunger fits in the injection cylinder and moves in a first direction and a second direction opposite to the first direction, a pressing member configured to be able to be separated from the injection plunger and press the injection plunger for moving the injection plunger toward the first direction, and a sensor configured to detect contact and/or separation between the injection plunger and the pressing member. In a state where the pressing member is separated from the injection plunger, molten resin supplied into the injection cylinder presses the injection plunger to move the injection plunger in the second direction, and contact between the injection plunger and the pressing member is detected by the sensor.