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:
Jun. 07, 1994
Filed:
Apr. 14, 1992
Sanji Inagaki, Toyokawa, JP;
Shoichi Tsuge, Okazaki, JP;
Mineyuki Sako, Toyohashi, JP;
Kenzo Toya, Okazaki, JP;
Yasuhiro Terunuma, Ibaragi, JP;
Yukako Oya, Ibaragi, JP;
Michio Ohmori, Ibaragi, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Mitsubishi Petrochemical Co., Ltd., Tokyo, JP;
Abstract
A toner for electrophotography obtained by melting and kneading a kneaded material prepared by melting and kneading a domain resin and a coloring agent, a matrix resin having a low compatibility with the domain resin, and a dispersion assistant having a compatibility with both of the domain resin and matrix resin and a Izod impact value higher than the matrix resin to obtain a colored composition, followed by pulverizing and classifying the colored composition.