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:
Sep. 21, 2021
Filed:
Apr. 06, 2017
Applicant:
A.l.m.t. Corp., Tokyo, JP;
Inventor:
Nobuhide Nakamura, Kato-shi, JP;
Assignee:
A.L.M.T. Corp., Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/06 (2006.01); B24D 3/00 (2006.01); B24D 5/14 (2006.01); B24D 3/34 (2006.01); B24D 5/02 (2006.01); B24D 18/00 (2006.01);
U.S. Cl.
CPC ...
B24D 3/06 (2013.01); B24D 3/00 (2013.01); B24D 3/34 (2013.01); B24D 5/02 (2013.01); B24D 5/14 (2013.01); B24D 18/00 (2013.01);
Abstract
A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder. The diamond abrasive grains and the CBN abrasive grains have projecting tips acting on a workpiece, the projecting tips having a variation in height of 10 μm or less, the diamond abrasive grains having their projecting tips with irregularities of 0.1 μm or more in height.