US2024066665A1PendingUtilityA1

Grindstone

66
Assignee: DISCO CORPPriority: Aug 31, 2022Filed: Aug 9, 2023Published: Feb 29, 2024
Est. expiryAug 31, 2042(~16.1 yrs left)· nominal 20-yr term from priority
Inventors:Hidenori NagaiTakashi YamaguchiNaruto Fuwa
B24D 7/08B24D 3/342B24D 3/06B24D 3/14B24D 3/28B24D 7/06B24D 3/02B24B 7/228B24D 3/18B24D 3/32
66
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Claims

Abstract

A grindstone includes abrasive grains and a binder for fixing the abrasive grains, and the binder contains a spherical filler for reinforcing the bonding material.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A grindstone comprising:
 abrasive grains; and   a binder for fixing the abrasive grains,   wherein the binder contains a spherical filler for reinforcing the binder.   
     
     
         2 . The grindstone according to  claim 1 ,
 wherein an average particle diameter of the filler is greater than an average particle diameter of the abrasive grains.   
     
     
         3 . The grindstone according to  claim 1 ,
 wherein the filler is ceramic particles, and   a ratio of a short axis to a long axis of the ceramic particles is not less than 0.7.   
     
     
         4 . The grindstone according to  claim 1 ,
 wherein a content of the filler in the binder is 5 to 90 wt %.   
     
     
         5 . The grindstone according to  claim 1 ,
 wherein the binder is a vitrified bond or a resin bond.

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