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:
Mar. 03, 1981
Filed:
Apr. 27, 1979
Yuji Sawai, Tokyo, JP;
Hisayuki Ushiyama, Tokyo, JP;
Tsuiki, deceased Harunobu, late of Tokyo, JP;
by Noriko Tsuiki, a legal representative, Chigasaki, JP;
Tomohiro Tsuiki, legal representive, Chigasaki, JP;
Manami Tsuiki, legal representive, Chigasaki, JP;
Tadashi Fujii, Tokyo, JP;
Eiichi Akutsu, Tokyo, JP;
Itsuo Ikeda, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A pressure sensitive adhesive toner for use in electrostatic photography which consists essentially of porous aggregates. Each aggregate consists essentially of a cluster of a multiplicity of individual granules of pressure sensitive adhesive substance, each granule being encapsulated by a coating film of a film-forming material. Particles of an inorganic or organic pigment and/or a magnetic substance are contained within the aggregate in the interstices between the granules and deposited on the surfaces of the encapsulated granules. The toner aggregates are free from a tendency to cohere, cake and agglomerate to each other. The toner can be readily pressure fixed, using a low impression pressure, onto a surface bearing an electrostatic latent image without causing any contamination thereon, thereby forming a distinct visible image.