公开(公告)号：US20180257973A1

公开(公告)日：2018-09-13

申请号：US15453296

申请日：2017-03-08

Applicant: HASS CO., LTD

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

IPC: C03B32/02 ,  C03C3/097 ,  C03C4/02 ,  C03C4/00 ,  C03C10/00 ,  A61C13/08

CPC classification number: C03B32/02 ,  A61C13/0022 ,  A61C13/083 ,  C03C3/097 ,  C03C4/0021 ,  C03C4/02 ,  C03C10/0027

Abstract: The present invention relates to a method for preparing a lithium disilicate glass-ceramics containing silicate as a main component, and more particularly, to a method for preparing a glass-ceramics, which is capable of adjusting machinability or translucency according to a crystalline size by using a first heat treatment or a second heat treatment. To this end, a method for preparing a glass-ceramics containing a silica crystalline phase includes: performing a first heat treatment on a glass composition at a temperature of 400 to 850° C., so that a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 5 to 2,000 nm are formed through the first heat treatment. After the first heat treatment, the method further includes performing a second heat treatment at a temperature of 780 to 880° C., so that translucency is adjusted by a temperature of the second heat treatment.

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：US20210214483A1

公开(公告)日：2021-07-15

申请号：US16954779

申请日：2020-02-04

Applicant: HASS CO., LTD.

Inventor： Yong Su KIM ,  Hyung Bong LIM ,  Kyung Sik OH ,  Sung Min KIM ,  Young Pyo HONG ,  Joon Hyung KIM ,  Si Won SON ,  Yena KIM

IPC: C08F222/10 ,  C03C10/00 ,  C08F222/22 ,  C08K9/06 ,  C08K3/40 ,  A61K6/833 ,  A61K6/60 ,  C03C17/30

Abstract: Dental composite composition including a glass ceramic and a curable organic material is described in which the glass ceramic includes a crystal phase having an average grain size of 50 to 400 nm, and the dental composite composition is provided as a dental prosthetic material exhibiting superior transparency and mechanical properties comparing to conventional composite products containing micro-sized crystal grains and also has excellent aesthetics and processability required for prosthetic materials for same-day dental prosthetic service.

公开(公告)号：US20230248493A1

公开(公告)日：2023-08-10

申请号：US18298528

申请日：2023-04-11

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Yong Su KIM ,  Hyun Jun JEON ,  Joon Hyung KIM ,  Hwan Soon KOH

IPC: A61C13/08 ,  A61C8/00 ,  A61C13/087

CPC classification number: A61C13/081 ,  A61C8/0093 ,  A61C13/087 ,  A61C8/0048

Abstract: A dental implant, and a manufacturing method for the same. The dental implant includes a form in which, in order to increase the strength of the connection between a metallic abutment and a dental prosthesis, the abutment and the prosthesis are integrally connected, wherein the prosthesis and the abutment are integrally connected to each other by means of a forming method.

公开(公告)号：US20220220023A1

公开(公告)日：2022-07-14

申请号：US17656308

申请日：2022-03-24

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Yong Su KIM ,  Kyung Sik OH ,  Young Pyo HONG ,  Sung Min KIM ,  Joon Hyung KIM ,  Si Won SON ,  Yena KIM

IPC: C03C10/00 ,  C03C4/20 ,  C03B32/02 ,  C03C19/00 ,  H01J37/32

Abstract: A crystallized glass includes crystalline and vitreous structures, in which the crystalline structure includes lithium disilicate as a main crystalline phase and at least one crystalline phase among lithium phosphonate (Li3PO4), lithium metasilicate (Li2SiO3), silica (SiO2), and zirconia (ZrO2) as a sub-crystalline phase, has an excellent processability and an excellent plasma corrosion resistance, thereby being useful as a material for production of parts for various dry etching apparatuses.

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：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：US20230030155A1

公开(公告)日：2023-02-02

申请号：US17938725

申请日：2022-10-07

Applicant: HASS CO., LTD.

Inventor： Yong Su KIM ,  Hyun Jun JEON ,  Hyung Bong LIM ,  Joon Hyung KIM ,  Sung Min KIM ,  Si Won SON ,  Yena KIM

IPC: A61C8/00 ,  A61C13/00

Abstract: Provided is a machinable abutment-integrated prosthetic block. The machinable abutment-integrated prosthetic block is structured such that an abutment is integrated with a crown block made of a material requiring no heat treatment after undergoing machining processing. The abutment and the crown block are integrated by an adhesive layer containing a cured product of a polymerizable organic compound. Therefore, the prosthetic block which is an integrated form of the abutment and the crown block can be processed by machining processing such as CAD/CAM processing. Therefore, the prosthetic block can be processed, by machining processing, into artificial teeth to be used as temporary teeth or permanent teeth and does not require no additional heat treatment after undergoing the machining processing, thereby shortening a treatment time for implant restoration, resulting in a one-day prosthesis procedure.

公开(公告)号：US20200377403A1

公开(公告)日：2020-12-03

申请号：US16533128

申请日：2019-08-06

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Yong Su KIM ,  Kyung Sik OH ,  Young Pyo HONG ,  Sung Min KIM ,  Joon Hyung KIM ,  Si Won SON ,  Yena KIM

IPC: C03B27/012 ,  A61K6/027 ,  C03B32/02 ,  A61K6/06 ,  C03C10/00

Abstract: Provided is a dental bulk block for grinding processing. The dental bulk block includes a crystalloid, which includes lithium disilicate as a main crystal phase and silicate as a sub-crystal phase, and hyaline as a remainder. The dental bulk block is a functionally gradient material having a crystalline size gradient with respect to a depth thereof and having no interface at a change point of a crystalline size gradient value. The dental bulk block is useful for manufacturing an artificial dental prosthesis that is similar to natural teeth. Accordingly, the time and process for manufacturing the artificial dental prosthesis are shortened, and structural stability is increased in terms of dispersion of force due to gradient functionalization of mechanical properties.

公开(公告)号：US20230021279A1

公开(公告)日：2023-01-19

申请号：US17934315

申请日：2022-09-22

Applicant: HASS CO., LTD.

Inventor： Yong Su KIM ,  Kyung Sik OH ,  Hyung Bong LIM ,  Joon Hyung KIM ,  Sung Min KIM ,  Si Won SON ,  Yena KIM

IPC: A61C13/09 ,  A61C13/083 ,  A61C13/00 ,  A61K6/836 ,  A61K6/889

Abstract: Dental prosthesis having a structure similar to that of natural teeth and a method for manufacturing the same. Provided is a dental prosthesis capable of expressing a structure and properties similar to natural teeth in which enamel is a surface layer and dentine is an inner layer underneath the enamel. In addition, a method of manufacturing the same dental prosthesis through three-dimensional printing is provided. The dental prosthesis is a cured product including ceramic particles dispersed in a polymer matrix. The cured product includes a first cured product layer including 70% to 90% by weight of ceramic particles having an average particle diameter of 100 to 1,000 nm and a second cured product layer including 40% to 60% by weight of ceramic particles having an average particle diameter of 10 μm to 500 μm, the second cured product layer being adjacent to the inner surface of the first cured product layer.