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. 17, 2020
Filed:
Jul. 10, 2019
Amika Sagara, Kanagawa, JP;
Yuuki Yokohama, Kanagawa, JP;
Masaki Kudo, Kanagawa, JP;
Yuusuke Koizuka, Kanagawa, JP;
Akihiko Matsuyama, Shizuoka, JP;
Koichiro Oyama, Kanagawa, JP;
Amika Sagara, Kanagawa, JP;
Yuuki Yokohama, Kanagawa, JP;
Masaki Kudo, Kanagawa, JP;
Yuusuke Koizuka, Kanagawa, JP;
Akihiko Matsuyama, Shizuoka, JP;
Koichiro Oyama, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink and cleaning liquid set includes an ink comprising a coloring material and a resin and a cleaning liquid comprising water and at least one type of organic solvent, wherein the ink in a dried form has a glass transition temperature of from 40 to 90 degrees C. and the swelling ratio calculated from a mass of a film of the ink in a dried form before and after immersion in the cleaning liquid is 10 percent or greater according to the following relationship 1: swelling ratio (percent)=100×[(B−A)/A] Relationship 1, where A represents the mass of the film before the immersion and B represents the mass of the film after the immersion.