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. 11, 2022
Filed:
Sep. 26, 2019
Seiko Epson Corporation, Tokyo, JP;
Kakeru Sasagawa, Matsumoto, JP;
Kei Yokota, Matsumoto, JP;
Kenta Anegawa, Matsumoto, JP;
Seiichiro Yamashita, Azumino, JP;
Yusuke Watanabe, Shiojiri, JP;
Yuichi Sasage, Suwa, JP;
Mitsuru Inutsuka, Kawagoe, JP;
Abstract
A plasticizing device includes a driving motor, a rotor that is rotated by rotation of the driving motor and has a groove-formed surface having a groove formed in a rotation direction, and a barrel that is opposite to the groove-formed surface and has a communication hole and a heater, plasticizes a material supplied between the groove and the barrel by rotation of the rotor and heating by the heater, and causes the plasticized material to flow out from the communication hole. Aside surface of the groove has a protrusion and recess surface including protrusion portions or recess portions.