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. 15, 1994
Filed:
Feb. 09, 1993
Applicant:
Inventors:
Masato Kitajima, Hekinan, JP;
Shinji Soma, Handa, JP;
Akimitsu Kamiya, Okazaki, JP;
Akira Suzuki, Okazaki, JP;
Yasuhisa Sekiya, Toyohashi, JP;
Tomohiro Inagaki, Anjo, JP;
Assignees:
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Toyoda Van Moppes Kabushiki Kaisha, Okazaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51307 ; 51309 ; 451541 ;
Abstract
A CBN grinding wheel having a circular core and an abrasive layer formed on the peripheral surface of the core. The abrasive layer comprises high toughness CBN grains and medium toughness CBN grains, wherein the high toughness CBN grains are incorporated into the abrasive layer in a ratio of 10-80% by weight with respect to the total amount of the CBN grains.