公开(公告)号：US09839498B2

公开(公告)日：2017-12-12

申请号：US15362867

申请日：2016-11-29

Applicant: SHOFU INC.

Inventor： Masanori Goto ,  Toshio Kitamura ,  Mitsuji Teramae

IPC: A61C13/00 ,  A61C13/09 ,  A61C13/08 ,  A61C5/10

CPC classification number: A61C13/0022 ,  A61C5/10 ,  A61C5/30 ,  A61C13/082 ,  A61C13/087 ,  A61C13/09

Abstract: To provide a multilayer resin material for dental milling and machining, comprising an inorganic filler in a content of 40% by weight or more and a plurality of layers different in transparency and color tone from each other, wherein the thickness of the uppermost layer (U) and the thickness of the lowermost layer (L) are each 1 mm or more, the contrast ratios (uppermost layer: CU, lowermost layer: CL) as indices for the transparency of the uppermost layer (U) and the transparency of the lowermost layer (L) satisfy the following relations: 0.30≦CU≦0.60 0.55≦CL≦0.90 CU

公开(公告)号：US20150108694A1

公开(公告)日：2015-04-23

申请号：US14497835

申请日：2014-09-26

Applicant: SHOFU INC.

Inventor： Shun Shimosoyama ,  Toshio Kitamura

IPC: A61K6/093

Abstract: Provided herein is a curable silicone composition that has high optical transparency after being cured and that is in a putty form to be hand-mixable. A curable silicone composition contains: a specific organopolysiloxane as a component (1); a specific organohydrogenpolysiloxane as a component (2); a filler as a component (3); and a catalyst as a component (4). The difference between the refractive index of one of the components (1) to (3) that has the highest refractive index and the refractive index of one of the components (1) to (3) that has the lowest refractive index is 0.1000 or less. The complex viscosity of any of constituent compositions of the curable silicon composition before the curable silicone composition is cured is 10 Pa·s to 100000 Pa·s, as measured under predetermined measurement condition.

Abstract translation: 本文提供了一种可固化的有机硅组合物，其在固化后具有高的光学透明度，并且是油灰形式以进行手工混合。 可固化的有机硅组合物包含：作为组分（1）的特定有机聚硅氧烷; 作为组分（2）的特定有机氢聚硅氧烷; 作为组分（3）的填料; 和作为组分（4）的催化剂。 具有最高折射率的组分（1）至（3）中的一个的折射率与折射率最低的组分（1）至（3）之一的折射率之间的差为0.1000或更小 。 固化性硅酮组合物固化前的固化性硅组合物的组成成分的复数粘度为10Pa·s〜100000Pa·s，在规定的测定条件下测定。

公开(公告)号：US20130210958A1

公开(公告)日：2013-08-15

申请号：US13762910

申请日：2013-02-08

Applicant: SHOFU INC.

Inventor： Shun Shimosoyama ,  Toshio Kitamura

IPC: A61K6/10

CPC classification number: A61K6/10 ,  C08L83/04 ,  C08L83/12

Abstract: Provided is a silicone impression material with high hydrophilicity that exhibits instantaneous hydrophilicity before being cured, that exhibits high hydrophilicity after being cured, that has preferable properties for a dental impression material, and that has good preservation stability. A sorbitan fatty acid ester based surfactant and a nonionic surfactant composed of polyester modified silicone are used in combination as a hydrophilizing agent not containing a siloxane polymer and a hydrophilizing agent containing a siloxane polymer, respectively.

Abstract translation: 本发明提供具有高亲水性的硅氧烷印模材料，其在固化前具有瞬时亲水性，在固化后表现出高的亲水性，对于牙印模材料具有优选的性能，并具有良好的保存稳定性。 作为不含硅氧烷聚合物的亲水剂和含有硅氧烷聚合物的亲水剂，组合使用脱水山梨糖醇脂肪酸酯系表面活性剂和由聚酯改性硅氧烷构成的非离子表面活性剂。

公开(公告)号：US20240315815A1

公开(公告)日：2024-09-26

申请号：US18680180

申请日：2024-05-31

Applicant: SHOFU INC.

Inventor： Seiji Ban ,  Shuhei Takahashi ,  Toshio Kitamura ,  Rieko Aiba

IPC: A61C13/00 ,  A61C5/73 ,  C04B35/48 ,  C04B41/87

CPC classification number: A61C13/0022 ,  A61C5/73 ,  C04B35/48 ,  C04B41/87 ,  C04B2235/3246 ,  C04B2235/94 ,  Y10T428/12229

Abstract: To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation. The zirconia mill blank of the present invention is a semi-fired zirconia mill blank for dental cutting and machining containing a semi-fired body of a ceramic particle, the zirconia mill blank for dental cutting and machining contains zirconium oxide, a stabilizing material consisting of an oxide, and a water-soluble compound salt which contains at least one element selected from calcium, magnesium and a rare earth element and is not an oxide, the content of the stabilizing material in terms of the oxide in the semi-fired body of the ceramic particle is within a range of 2 to 7 mol %, and the content of the water-soluble compound salt in the zirconia mill blank for dental cutting and machining is within a range of 0.1 to 3.5 mol %.

公开(公告)号：US11622840B2

公开(公告)日：2023-04-11

申请号：US16367459

申请日：2019-03-28

Applicant: SHOFU INC.

Inventor： Toshio Kitamura ,  Shuhei Takahashi

IPC: A61C13/00 ,  A61C13/08 ,  C04B35/48 ,  C04B41/00 ,  C04B41/46 ,  C04B41/49 ,  C09D7/61 ,  C09D7/63 ,  A61K6/60 ,  A61K6/70

Abstract: To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring.
The present disclosure provides an opaque imparting liquid used for a prosthesis device cut and machined from a dental zirconia for cutting and machining, comprising; (a) 10 to 39 wt. % of a water-soluble aluminum compound and/or a water-soluble lanthanum compound, (b) 60 to 89 wt. % of water, and (c) 1 to 20 wt. % of an organic solvent.

公开(公告)号：US12115032B2

公开(公告)日：2024-10-15

申请号：US18136575

申请日：2023-04-19

Applicant: SHOFU INC.

Inventor： Toshio Kitamura ,  Rieko Aiba

IPC: A61C13/00 ,  A61C13/08

CPC classification number: A61C13/0022 ,  A61C13/0004 ,  A61C13/082

Abstract: The present disclosure relates to a dental cutting zirconia blank having high relative density for preparing a dental restoration. More specifically, the present disclosure relates to a dental cutting zirconia blank which consists of a zirconia ceramics used for the cutting with the CAD/CAM system in the dental field, a semi-sinter zirconia blank (pre-sintered body) of which has high relative density, and which can provide a prosthesis device having high aesthetics after sintering. There is provided a dental cutting zirconia blank wherein the dental cutting zirconia blank has at least one layer consisting of zirconia powder containing 4 to 15 mol % of yttria or erbium oxide as a stabilizer, a relationship among pre-sintering density, final-sintering density and relative density satisfies the following relation:

54≤Relative density (%)={(Pre-sintering density)/(Perfect-sintering density)}×100≤70.

公开(公告)号：US11660172B2

公开(公告)日：2023-05-30

申请号：US15805396

申请日：2017-11-07

Applicant: SHOFU INC.

Inventor： Toshio Kitamura ,  Rieko Aiba

IPC: A61C13/00 ,  A61C13/08

CPC classification number: A61C13/0022 ,  A61C13/0004 ,  A61C13/082

Abstract: The present disclosure relates to a dental cutting zirconia blank having high relative density for preparing a dental restoration. More specifically, the present disclosure relates to a dental cutting zirconia blank which consists of a zirconia ceramics used for the cutting with the CAD/CAM system in the dental field, a semi-sinter zirconia blank (pre-sintered body) of which has high relative density, and which can provide a prosthesis device having high aesthetics after sintering. There is provided a dental cutting zirconia blank wherein the dental cutting zirconia blank has at least one layer consisting of zirconia powder containing 4 to 15 mol % of yttria or erbium oxide as a stabilizer, a relationship among pre-sintering density, final-sintering density and relative density satisfies the following relation:

54≤Relative density(%)={(Pre-sintering density)/(Perfect-sintering density)}×100≤70.

公开(公告)号：US11311350B2

公开(公告)日：2022-04-26

申请号：US16145463

申请日：2018-09-28

Applicant: SHOFU INC.

Inventor： Mamoru Hosokawa ,  Toshio Kitamura

IPC: A61K6/30 ,  A61C5/77 ,  A61C13/087 ,  A61C13/00 ,  A61C13/08 ,  A61K6/71 ,  A61K6/884

Abstract: To provide a resin cured body for dental cutting processing used for cutting and machining using a dental CAD/CAM system, wherein the resin cured body consists of the cured body of a composition comprising: (a) an inorganic filler containing 55 wt. % or more of an element belonging to group II and/or group XIII of the periodic table in terms of an oxide, (b) a polymerizable monomer, and (c) a polymerization initiator.

公开(公告)号：US10470982B2

公开(公告)日：2019-11-12

申请号：US14497835

申请日：2014-09-26

Applicant: SHOFU INC.

Inventor： Shun Shimosoyama ,  Toshio Kitamura

IPC: A61K6/093 ,  C08L83/04 ,  C08K3/36 ,  C08K5/56 ,  C08L83/00 ,  A61K6/00

Abstract: Provided herein is a curable silicone composition that has high optical transparency after being cured and that is in a putty form to be hand-mixable. A curable silicone composition contains: a specific organopolysiloxane as a component (1); a specific organohydrogenpolysiloxane as a component (2); a filler as a component (3); and a catalyst as a component (4). The difference between the refractive index of one of the components (1) to (3) that has the highest refractive index and the refractive index of one of the components (1) to (3) that has the lowest refractive index is 0.1000 or less. The complex viscosity of any of constituent compositions of the curable silicon composition before the curable silicone composition is cured is 10 Pa·s to 100000 Pa·s, as measured under predetermined measurement condition.

公开(公告)号：US10085923B2

公开(公告)日：2018-10-02

申请号：US14737763

申请日：2015-06-12

Applicant: SHOFU INC.

Inventor： Toshiyuki Nakatsuka ,  Toshio Kitamura ,  Masanori Goto ,  Tomohiro Kai ,  Satoshi Takano ,  Yoshiyuki Jogetsu

IPC: A61C13/09 ,  A61C13/087 ,  A61K6/083 ,  A61K6/00 ,  C08K9/02

Abstract: The present invention relates to a dental curable composition that can be suitably used as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. An object of the present invention is to provide a dental curable composition in which, when a block shape usable as a resin material for dental cutting and machining is produced while mechanical properties such as hardness, bending strength and compressive strength as well as aesthetic property required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. There is provided a dental curable composition including (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and including 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).