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：US20240374361A1

公开(公告)日：2024-11-14

申请号：US18782203

申请日：2024-07-24

Applicant: HASS CO., LTD.

Inventor： Hyung Bong LIM ,  Yong Su KIM ,  Si Won SON ,  Seong Eun LEE

IPC: A61C13/00

Abstract: The present disclosure provides a large-area blank wherein no crystal-phase peak exists in the range of 2θ 10-70, and the degree of crystallinity of 0.00% in an X-ray diffraction analysis pattern using CuKα rays, but crystalline particles having an average particle size of 10-70 nm are confirmed to be distributed in an amorphous SiO2—Li2O—Al2O3-series glass matrix from an SEM-based analysis, and the blank has a long-axis length of at least 60 mm and a thickness of at least 6 mm. The present disclosure has the following advantages: the blank is a workpiece having a large area and excellent processability such that processability can be improved during cutting, thereby reducing tool resistance and wear ratio, and increasing the tool lifespan; edge chipping can be reduced during processing; when fabricating multiple dental restorations successively by using a single blank, the blank use efficiency can be improved, and dental restoration productivity can be improved.

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.

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：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.