公开(公告)号：US20220125554A1

公开(公告)日：2022-04-28

申请号：US17569947

申请日：2022-01-06

Applicant: HASS CO., LTD

Inventor： Yong Su KIM ,  Hyun Jun JEON ,  Hyung Bong LIM ,  Kyung Sik OH ,  Sung Ho HA ,  Young Pyo HONG ,  Joon Hyung KIM ,  Cheol Young KIM

IPC: A61C5/77 ,  C03C10/00 ,  C03C8/24 ,  C03C3/097 ,  C03C4/00 ,  C04B37/04 ,  C04B35/14 ,  C04B35/16 ,  C04B37/00 ,  A61C5/73 ,  A61C13/00 ,  A61C13/08 ,  A61C13/083 ,  A61C13/20 ,  A61C13/30 ,  C03C27/00

Abstract: Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO2, 10 to 13 wt % Li2O, 3 to 7 wt % P2O5 working as a nuclei formation agent, 0 to 5 wt % Al2O3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na2O, 0.5 to 3 wt % K2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La2O3.

公开(公告)号：US20230248492A1

公开(公告)日：2023-08-10

申请号：US18301313

申请日：2023-04-17

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Hwan Soon KOH ,  Joon Hyung KIM ,  Sung Ho HA ,  Yong Su KIM

IPC: A61C13/00

CPC classification number: A61C13/0022 ,  A61C13/0006 ,  Y10T428/12229

Abstract: Provided is a dental blank. The dental blank includes: a seating portion provided in an artificial tooth processing apparatus; and a material portion configured to be inserted into the seating portion, wherein the material portion includes a plurality of outer contacting portions in contact with an inner side of the seating portion, and may have a polygonal shape in a cross-section.

公开(公告)号：US20220054240A1

公开(公告)日：2022-02-24

申请号：US17368440

申请日：2021-07-06

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Hwan Soon KOH ,  Joon Hyung KIM ,  Sung Ho HA ,  Yong Su KIM

IPC: A61C13/00

Abstract: Provided is a dental blank. The dental blank includes: a seating portion provided in an artificial tooth processing apparatus; and a material portion configured to be inserted into the seating portion, wherein the material portion includes a plurality of outer contacting portions in contact with an inner side of the seating portion, and may have a polygonal shape in a cross-section.

公开(公告)号：US20240130934A1

公开(公告)日：2024-04-25

申请号：US18392580

申请日：2023-12-21

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Sung Min KIM ,  Sung Ho HA ,  Moon Chang KIM ,  Hwan Soon KOH

IPC: A61K6/833 ,  A61C13/083 ,  A61K6/17 ,  C03B32/02 ,  C03C4/00 ,  C03C10/00 ,  C03C14/00

CPC classification number: A61K6/833 ,  A61C13/083 ,  A61K6/17 ,  C03B32/02 ,  C03C4/0021 ,  C03C10/00 ,  C03C14/00 ,  C03C2204/04 ,  C03C2214/12 ,  C03C2214/20

Abstract: Disclosed is a bulk block for manufacturing a prosthesis having high aesthetics and processability required for one-day dental prosthetic materials, which is a dental composite bulk block comprising a glass ceramic matrix and a polymer, wherein the glass ceramic matrix consists of an amorphous glass matrix and a crystalline phase dispersed in the glass matrix, the crystalline phase comprises as a main crystalline phase at least one selected from a leucite crystalline phase and a lithium disilicate crystalline phase, and has an average particle diameter of 0.01-1.0 μm, and the polymer is included in an amount of 20-40 wt % with respect to the weight of the total bulk block. The bulk block has the advantages of improved mechanical properties, being capable of preventing microleakage, exhibiting excellent aesthetics, and enabling machining.

公开(公告)号：US20170290641A1

公开(公告)日：2017-10-12

申请号：US15344918

申请日：2016-11-07

Applicant: HASS CO., LTD

Inventor： Yong Su KIM ,  Hyun Jun JEON ,  Hyung Bong LIM ,  Kyung Sik OH ,  Sung Ho HA ,  Young Pyo HONG ,  Joon Hyung KIM ,  Cheol Young KIM

IPC: A61C5/77 ,  C04B37/04 ,  C03C27/00 ,  A61C13/30 ,  A61C13/00 ,  A61C13/08 ,  A61C13/083 ,  A61C13/20 ,  C03C10/00 ,  A61C5/73

CPC classification number: A61C5/77 ,  A61C5/73 ,  A61C13/0004 ,  A61C13/082 ,  A61C13/083 ,  A61C13/20 ,  A61C13/30 ,  C03C3/097 ,  C03C4/0021 ,  C03C8/24 ,  C03C10/0009 ,  C03C27/00 ,  C03C2204/00 ,  C04B35/14 ,  C04B35/16 ,  C04B37/001 ,  C04B37/042 ,  C04B37/045 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3284 ,  C04B2235/34 ,  C04B2235/36 ,  C04B2235/445 ,  C04B2235/80 ,  C04B2235/9661 ,  C04B2237/10 ,  C04B2237/341 ,  C04B2237/348

Abstract: Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO2, 10 to 13 wt % Li2O, 3 to 7 wt % P2O5 working as a nuclei formation agent, 0 to 5 wt % Al2O3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na2O, 0.5 to 3 wt % K2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La2O3.