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:
Apr. 13, 2010
Filed:
Dec. 24, 2008
Masahide Yamada, Numazu, JP;
Ryota Inoue, Mishima, JP;
Naohiro Watanabe, Sunto-gun, JP;
Shigeru Emoto, Numazu, JP;
Masahiro Ohki, Iruma, JP;
Akinori Saitoh, Numazu, JP;
Tsunemi Sugiyama, Kashiwa, JP;
Shinichi Wakamatsu, Numazu, JP;
Toshiki Nanya, Mishima, JP;
Naohito Shimota, Numazu, JP;
Hiroshi Yamada, Numazu, JP;
Junichi Awamura, Numazu, JP;
Tomomi Suzuki, Numazu, JP;
Kazuyuki Hirai, Kyoto, JP;
Kazushige Yasumatsu, Kyoto, JP;
Masahide Yamada, Numazu, JP;
Ryota Inoue, Mishima, JP;
Naohiro Watanabe, Sunto-gun, JP;
Shigeru Emoto, Numazu, JP;
Masahiro Ohki, Iruma, JP;
Akinori Saitoh, Numazu, JP;
Tsunemi Sugiyama, Kashiwa, JP;
Shinichi Wakamatsu, Numazu, JP;
Toshiki Nanya, Mishima, JP;
Naohito Shimota, Numazu, JP;
Hiroshi Yamada, Numazu, JP;
Junichi Awamura, Numazu, JP;
Tomomi Suzuki, Numazu, JP;
Kazuyuki Hirai, Kyoto, JP;
Kazushige Yasumatsu, Kyoto, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a toner containing an ethyl acetate-soluble polyester component and an ethyl acetate-insoluble polyester component, wherein the toner is granulated in an aqueous medium, the ethyl acetate-insoluble polyester component is obtained by elongating and/or cross-linking a modified polyester resin during granulating and/or after granulating, the modified polyester resin is produced by condensation polymerization of an acid component and at least one type of diol compound selected from aliphatic diol and alicyclic diol in the presence of a catalyst, and the mass average molecular weight of the modified polyester resin is 10,000 to 100,000.