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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
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.
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12.发明申请公开(公告)号：US20210401553A1
公开(公告)日：2021-12-30
申请号：US17208086
申请日：2021-03-22
Applicant: SHOFU INC.
Inventor： Kazumichi NONAKA , Shuhei TAKAHASHI
IPC: A61C13/083 , A61C13/00 , A61K6/878
Abstract: [Problem]
To support the metal without segregation on the zirconia mill blank for dental cutting and machining which has been adjusted to a hardness that enables to cut and machine by calcining at a low temperature.
[Solution]
A zirconia mill blank for dental cutting and machining is prepared by A preparing method of a zirconia mill blank for dental cutting and machining, comprising an impregnation step of impregnating a porous zirconia molded body with an impregnating solution containing at least one metal ion and at least one precipitant, and a deposition step of decomposing the precipitant in the porous zirconia molded body to deposit a metal compound.-
公开(公告)号：US10905531B2
公开(公告)日：2021-02-02
申请号：US15662557
申请日：2017-07-28
Applicant: SHOFU INC.
Inventor： Yusei Kadobayashi , Masako Shigezawa
Abstract: To provide a mill blank for dental CAD/CAM for preparing a dental restoration by being installed in a CAD/CAM device, wherein, the mill blank for dental CAD/CAM has a substantially columnar shape, the mill blank for dental CAD/CAM has at least one recess in a circumference portion, the recess does not extend over the whole of the circumference portion of the mill blank for dental CAD/CAM, and the recess of the mill blank for dental CAD/CAM is to be engaged with the CAD/CAM device.
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公开(公告)号：US20210007938A1
公开(公告)日：2021-01-14
申请号：US16829259
申请日：2020-03-25
Applicant: SHOFU INC.
Inventor： Yusei KADOBAYASHI , Hiroshi YAANA , Jun UCHIDA , Yuji SADAKANE
Abstract: An object of the present disclosure is to provide a dental composition that can exhibit sufficient curability even in a state where moisture is excessive as in the oral environment. The dental composition of the present disclosure contains component (a): monomer containing (meth)acrylamide group represented by formula (1): (In formula, R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other. R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other.)
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公开(公告)号：US20210000699A1
公开(公告)日：2021-01-07
申请号：US16829236
申请日：2020-03-25
Applicant: SHOFU INC.
Inventor： Jun UCHIDA , Katsuya KIMOTO
Abstract: An object of the present invention is to provide a dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes it difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability. The dental resin-reinforced glass ionomer cement composition consisting of a powder material and a liquid material, wherein the powder material contains (a) acid-reactive glass powder, the liquid material contains (b) water, (c) polymer of acidic group-containing polymerizable monomer, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer and (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and at least one of the powder material and the liquid material contains (f) polymerization initiator.
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Patent Agency Ranking
公开(公告)号：US10780027B2
公开(公告)日：2020-09-22
申请号：US16357384
申请日：2019-03-19
Applicant: SHOFU INC.
Inventor： Yusei Kadobayashi , Masako Shigezawa
Abstract: A composite material including silanated filler and mixed polymerizable monomer, having a stable pasty property which keeps well and has a consistent usability. A composite material containing a silanated filler, a polymerizable monomer, and a polymerization initiator, and may be produced by a process which includes in order of a mixed polymerizable monomer preparing step, a mixed polymerizable monomer preserving step, a composite material preparing step, a composite material preserving step, a composite material filling step, and a small quantity preserving container preserving step.
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公开(公告)号：US20200214819A1
公开(公告)日：2020-07-09
申请号：US16575867
申请日：2019-09-19
Applicant: SHOFU INC.
Inventor： Daisuke HARA , Naoya KITADA , Kenzo YAMAMOTO , Yasuhiro NISHINO , Yoshiyuki JOGETSU
IPC: A61C19/10
Abstract: [Problem]To select a dental cement or a trial test material for easily obtaining high color tone adaptability to peripheral tooth substances, in mounting of or trial test of a prosthesis device[Solution]To provide a dental cement set consisting of a plurality of dental cements having color tones including color tones of 3 to n colors for selecting and using a dental cement from the plurality of dental cements having the color tones including the color tones of the 3 to n colors after trial test with trial test materials for the dental cement to be used from the plurality of dental cements having the color tones including the color tones of the 3 to n colors, wherein: the amount of information loss Pin with regard to first principal component determined by principal component analysis is less than 2, and . the dental cement set satisfies following Formula 1. 2≤((CL*p−1−CL*p)2 +(Ca*p−1−Ca*p)2 +(Cb*p−1−Cb*p)2)1/2
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公开(公告)号：US20190380815A1
公开(公告)日：2019-12-19
申请号：US16357373
申请日：2019-03-19
Applicant: SHOFU INC.
Inventor： Rieko AIBA , Shuhei TAKAHASHI , Toshio KITAMURA
IPC: A61C13/00 , C04B35/486
Abstract: To provide a dental zirconia blank which has high permeability, can reproduce a color tone close to a natural tooth and a strength to be able to tolerate in oral cavity. Furthermore, to provide a dental zirconia blank from which a prosthesis device of 4 or more units having high strength can be prepared. To provide a dental zirconia blank having a plurality of layers, comprising; a first layer consisting of a high permeability ceramic containing 91.6 to 96.5 mol % of zirconium oxide and 3.5 to 8.4 mol % of yttrium oxide, and a second layer consisting of a low permeability ceramic containing 95.6 to 98.5 mol % of zirconium oxide and 1.5 to 4.4 mol % of yttrium oxide, wherein a content rate of yttrium oxide in the low permeability ceramic is lower than a content rate of yttrium oxide in the high permeability ceramic by 0.5 to 5.4 mol %, and the first layer is positioned at one end of the plurality of layers in a layering direction.
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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
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.
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公开(公告)号：US10363202B2
公开(公告)日：2019-07-30
申请号：US14968980
申请日：2015-12-15
Applicant: SHOFU INC.
Inventor： Yuji Sadakane , Masako Shigezawa , Yusei Kadobayashi
Abstract: The present invention relates to a polymerization catalyst having storage stability under an oral cavity environment. Furthermore, the present invention relates to a dental material cured by use of the present polymerization catalyst. The polymerization catalyst for use in the dental material is achieved with including 1-cyclohexyl-5-propylbarbituric acid and trioctylmethylammonium chloride.
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