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:
Aug. 07, 1990
Filed:
Mar. 25, 1988
Yuichi Ishikawa, Yokohama, JP;
Nippon Seiko Kabushiki Kaisha, Tokyo, JP;
Abstract
Photosetting ferrofluid compositions of this type comprises three manners of structural feature. A first type of the compositions to solve the problems mentioned above is a photosetting type ferrofluid which is prepared by admixing photosetting resin with ferrofluid in which ferromagnetic particles having adsorbed a surfactant(s) are dispersed into a carrier. An improved photosetting type ferrofluid is also proposed as a second type of composition, in which the carrier itself is composed of at least a photosetting resin. A further improved photosetting type ferrofluid having higher sensitivity than that of the second embodiment is also prepared as a type of composition, with an intention to obtain higher sharp microphotograph image, and this sensitive photosetting type ferrofluid is prepared by admixing a ferrofluid, consisting of a carrier of low viscosity, ferromagnetic particles, a surfactant or surfactants for dispersing the ferromagnetic particles in said carrier and further added with photosetting resin at least 25% by volume of the carrier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile