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. 20, 1990
Filed:
Jun. 06, 1989
Applicant:
Inventors:
Hideo Hotomi, Osaka, JP;
Izumi Osawa, Osaka, JP;
Isao Doi, Osaka, JP;
Masanori Fujiwara, Osaka, JP;
Shuji Iino, Osaka, JP;
Kenji Masaki, Osaka, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; B05D / ; B32B / ;
U.S. Cl.
CPC ...
430108 ; 4301066 ; 430110 ; 430137 ; 427 41 ; 428403 ;
Abstract
The present invention relates to a developer such as a toner and/or carrier for use in electrophotographic developing processes, and more specifically relates to a developer containing halogenated amorphous carbon particles prepared by plasma-polymerization, wherein the particles may take two forms, i.e., one with seed particles which is coated with the plasma-polymerized film containing at least carbon and halogen or the other without the seed particles which is formed by plasma-reacting carbon and halogen.