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. 26, 1988
Filed:
Aug. 20, 1987
Toshiaki Nakahara, Tokyo, JP;
Junichi Kurimoto, Tokyo, JP;
Yasuhide Goseki, Tokyo, JP;
Toshiyuki Koshio, Tokyo, JP;
Hisayuki Ochi, Tokyo, JP;
Hisayuki Ushiyama, Hiratsuka, JP;
Toru Matsumoto, Tokyo, JP;
Ichiro Ohsaki, Kawasaki, JP;
Katsutoshi Wakamiya, Yokohama, JP;
Masuo Yamazaki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An encapsulated toner for development of electrical latent images comprises a core particle containing a colorant and a soft solid material, inorganic fine particles attached to the vicinity of the surface of the core particle, and a shell coating the core particle and the inorganic fine particles. The inorganic fine particles function to, e.g., reinforce the encapsulated toner with a thin shell and may be attached to the core particles through dry-mixing. The core particles with the attached inorganic particles may be coated with a shell resin through phase separation.