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公开(公告)号：US11104600B2
公开(公告)日：2021-08-31
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
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.
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Patent Agency Ranking
公开(公告)号：US11591427B2
公开(公告)日：2023-02-28
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.
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公开(公告)号：US10556819B2
公开(公告)日：2020-02-11
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
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.
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公开(公告)号：US11759290B2
公开(公告)日：2023-09-19
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 , C03C27/00 , A61C13/30
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 , C04B35/14 , C04B35/16 , C04B37/001 , C04B37/042 , C04B37/045 , C03C2204/00 , 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.
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公开(公告)号：US10882776B2
公开(公告)日：2021-01-05
申请号：US16588120
申请日：2019-09-30
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
Abstract: Provided is 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.
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公开(公告)号：US20200024175A1
公开(公告)日：2020-01-23
申请号：US16588120
申请日：2019-09-30
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
Abstract: Provided is 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.
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