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:
Feb. 25, 2003
Filed:
Dec. 24, 2001
Norihiro Yoshikawa, Kouka-gun, JP;
Tomoaki Onoue, Otsu, JP;
Atsuhiro Torii, Otsu, JP;
Kenji Tanaka, Gamo-gun, JP;
Masaru Kojima, Hikone, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A ceramic green sheet is formed from a ceramic slurry composition comprising a ceramic powder such as BaTiO , a vehicle in the state of emulsion in which an organic binder consisting of polyurethane resin particles having an average particle size of about 120 nm or less is dispersed in an aqueous solvent, and a surfactant comprising an alkyne glycol having one or more triple bonds in its molecule and/or an ethylene oxide addition product of such an alkyne glycol. A very thin aqueous ceramic green sheet is provided that is free from pin holes, and has low surface roughness, high tensile strength and high elongation.