US 11,986,365 B2
Dental prosthesis coloring device, machining apparatus, and coloring method
Yoshihisa Ito, Miyoshi (JP); and Sho Ito, Miyoshi (JP)
Assigned to KURARAY NORITAKE DENTAL INC., Kurashiki (JP)
Appl. No. 17/439,981
Filed by KURARAY NORITAKE DENTAL INC., Kurashiki (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012176
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/189745, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 2019-053329 (JP), filed on Mar. 20, 2019.
Prior Publication US 2022/0168080 A1, Jun. 2, 2022
Int. Cl. B41J 3/407 (2006.01); A61C 13/08 (2006.01); A61C 13/083 (2006.01); B41M 5/00 (2006.01); F27B 17/02 (2006.01)
CPC A61C 13/082 (2013.01) [A61C 13/083 (2013.01); B41J 3/4073 (2013.01); B41M 5/0047 (2013.01); B41M 5/007 (2013.01); B41M 5/0088 (2013.01); F27B 17/025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dental prosthesis coloring device, comprising:
an inkjet head having a nozzle that ejects ink droplets, configured for an ink that is not oily;
a holding unit that holds a prosthesis which is made of a porous ceramic material;
a drive unit that moves the holding unit in a predetermined direction in an XYZ orthogonal coordinate system; and
a control unit that controls the inkjet head and the drive unit,
wherein the drive unit comprises a rotary drive unit that rotates the holding unit about at least two axes intersecting each other, and
wherein the control unit is configured to control the inkjet head and the drive unit based on predetermined coloring data and three-dimensional data of the prosthesis.