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:
Sep. 11, 2018
Filed:
Jun. 14, 2017
Kohsuke Nagata, Shizuoka, JP;
Ryuuta Yoshida, Kanagawa, JP;
Shinya Nakayama, Shizuoka, JP;
Tsuyoshi Sugimoto, Kanagawa, JP;
Akinori Saitoh, Shizuoka, JP;
Hideyuki Santo, Kanagawa, JP;
Suzuka Karato, Shizuoka, JP;
Koh Ohnuma, Shizuoka, JP;
Takahiro Kadota, Shizuoka, JP;
Shinsuke Nagai, Shizuoka, JP;
Akihiro Takeyama, Kanagawa, JP;
Kohsuke Nagata, Shizuoka, JP;
Ryuuta Yoshida, Kanagawa, JP;
Shinya Nakayama, Shizuoka, JP;
Tsuyoshi Sugimoto, Kanagawa, JP;
Akinori Saitoh, Shizuoka, JP;
Hideyuki Santo, Kanagawa, JP;
Suzuka Karato, Shizuoka, JP;
Koh Ohnuma, Shizuoka, JP;
Takahiro Kadota, Shizuoka, JP;
Shinsuke Nagai, Shizuoka, JP;
Akihiro Takeyama, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner is provided. The toner includes an amorphous resin, a crystalline resin dispersed in the amorphous resin, and a release agent. The toner satisfies the following inequality:<0.8where A represents a perimeter of the crystalline resin and B represents a length of a part of the perimeter A of the crystalline resin at which the crystalline resin is in contact with the amorphous resin, A and B being measured from a cross-sectional image of the toner observed with transmission electron microscope.