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:
Dec. 12, 2017
Filed:
Nov. 29, 2016
Shofu Inc., Kyoto, JP;
SHOFU INC., Kyoto, JP;
Abstract
To provide a multilayer resin material for dental milling and machining, comprising an inorganic filler in a content of 40% by weight or more and a plurality of layers different in transparency and color tone from each other, wherein the thickness of the uppermost layer (U) and the thickness of the lowermost layer (L) are each 1 mm or more, the contrast ratios (uppermost layer: C, lowermost layer: C) as indices for the transparency of the uppermost layer (U) and the transparency of the lowermost layer (L) satisfy the following relations:0.30≦C≦0.600.55≦C≦0.90C<C and the chromaticities (uppermost layer: L·a·b, lowermost layer: L·a·b) based on the L*a*b* colorimetric system as the indices of the color tones in the uppermost layer (U) and the lowermost layer (L) satisfy the following relations:60≦≦80−3≦≦20≦≦30