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. 25, 2020
Filed:
Sep. 22, 2017
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
Takashi Miyahara, Kirishima, JP;
Wataru Ikeuchi, Kirishima, JP;
Hiroyuki Kawamura, Kirishima, JP;
Kenichi Yoshimura, Kirishima, JP;
Naoki Kobayashi, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A first flow path member of a liquid ejection head includes a plurality of pressurizing chambers respectively connected to a plurality of ejection holes, a plurality of first individual flow paths and a plurality of second individual flow paths which are respectively connected to the plurality of pressurizing chambers, and a first common flow path connected in common to the plurality of first individual flow paths and the plurality of second individual flow paths. The pressurizing chamber, the first individual flow path, the first common flow path, and the second individual flow path configure an annular flow path. When Tdenotes a resonance period of the pressurizing chamber and Tdenotes a time required for a pressure wave to circulate once around the annular flow path, a decimal place value of T/Tis ⅛ to ⅞.