US 12,245,906 B2
Workpiece unit and method of producing same
Yoshihisa Ito, Miyoshi (JP); and Tetsuo Yamada, Nagoya (JP)
Assigned to KURARAY NORITAKE DENTAL INC., Kurashiki (JP)
Filed by KURARAY NORITAKE DENTAL INC., Kurashiki (JP)
Filed on Mar. 11, 2021, as Appl. No. 17/199,382.
Application 17/199,382 is a continuation of application No. 15/559,335, granted, now 11,109,948, previously published as PCT/JP2016/058765, filed on Mar. 18, 2016.
Claims priority of application No. 2015-056570 (JP), filed on Mar. 19, 2015.
Prior Publication US 2021/0298880 A1, Sep. 30, 2021
Int. Cl. A61C 13/083 (2006.01); A61C 5/77 (2017.01); A61C 7/14 (2006.01); A61C 8/00 (2006.01); A61C 13/00 (2006.01); B23P 11/02 (2006.01); B23Q 3/10 (2006.01); B24B 41/06 (2012.01)
CPC A61C 13/083 (2013.01) [A61C 5/77 (2017.02); A61C 7/14 (2013.01); A61C 8/00 (2013.01); A61C 13/0003 (2013.01); A61C 13/0022 (2013.01); B23P 11/02 (2013.01); B23Q 3/10 (2013.01); B24B 41/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A workpiece unit, comprising:
a workpiece body, and
a holding member having a ring shape which is arranged on at least a part of an outer circumferential portion of the workpiece body and having an inner circumferential portion, the inner circumferential portion is permanently in a direct and fixed contact with the outer circumferential portion continuously over an entire circumference of the workpiece body,
wherein the holding member is attached to the workpiece body without adhesive,
wherein the holding member is arranged centrally in a direction of the thickness of the workpiece body,
wherein the workpiece body has a first face which serves as a face to be worked, a second face opposite to the first face, and the outer circumferential portion arranged between the first face and the second face,
wherein a contacting surface of the inner circumferential portion and a contacting surface of the outer circumferential portion extend along a plane perpendicular to the first face and the second face, and
wherein the outer circumferential portion and the inner circumferential portion are portions that are not in a same direction as the first face and the second face.