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. 21, 2023
Filed:
Jan. 19, 2017
Bando Chemical Industries, Ltd., Hyogo, JP;
Daisuke Takagi, Kobe, JP;
Tomoki Iwanaga, Kobe, JP;
Kazuo Saito, Kobe, JP;
Toshikazu Taura, Kobe, JP;
BANDO CHEMICAL INDUSTRIES, LTD., Hyogo, JP;
Abstract
A grinding material includes a base sheet and a grinding layer overlaid on a front face side of the base sheet and including abrasive grains and a binder for the abrasive grains. The grinding layer includes the abrasive grains of a plurality of types. Of the abrasive grains of the plurality of types, provided that first abrasive grains have the largest average diameter and second abrasive grains have the second largest average diameter, the percentage of the average diameter of the second abrasive grains with respect to that of the first abrasive grains is 5-70%. The total content of the abrasive grains in the grinding layer is preferably 50-85% by volume. The content of the first abrasive grains in the grinding layer is preferably 1-25% by volume. The first abrasive grains are preferably diamond abrasive grains and the second abrasive grains are preferably alumina abrasive grains.