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公开(公告)号：US11504306B2
公开(公告)日：2022-11-22
申请号：US17032212
申请日：2020-09-25
Applicant: SHOFU INC.
Inventor： Shuji Sakamoto , Shun Shimosoyama , Katsuya Kimoto
Abstract: A dental glass ionomer cement composition that exhibits high mechanical properties. In particular, the dental glass ionomer cement composition of the present disclosure comprising (a) non-crosslinked polyalkenoic acid, (b) water, (c) crosslinked polyalkenoic acid: 0.01 to 10 wt. %, and (d) acid-reactive glass powder, exhibits extremely high compressive strength by including the crosslinked polyalkenoic acid in the specified content range.
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公开(公告)号：US11324669B2
公开(公告)日：2022-05-10
申请号：US16829236
申请日：2020-03-25
Applicant: SHOFU INC.
Inventor： Jun Uchida , Katsuya Kimoto
IPC: A61K6/889 , A61K6/20 , A61K6/833 , C08F120/56 , A61K6/836 , A61K6/62 , A61K6/77 , A61K6/30 , A61K6/40 , A61K6/887
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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公开(公告)号：US11000453B2
公开(公告)日：2021-05-11
申请号：US15435506
申请日：2017-02-17
Applicant: SHOFU INC.
Inventor： Katsuya Kimoto , Shunsuke Miyata , Hideto Kasaba
Abstract: To provide an organic-inorganic composite filler containing; a polymerizable monomer (a) having at least one functional group selected from the group consisting of —OH group, —NH— group, and —NH2 group, a polymerizable monomer (b) having no functional group selected from the group consisting of —OH group, —NH— group, and —NH2 group, a polymerization initiator (c), an inorganic filler (d), and a silane compound (e) which generates —OH group by hydrolysis.
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公开(公告)号：US10463581B2
公开(公告)日：2019-11-05
申请号：US15432004
申请日：2017-02-14
Applicant: SHOFU INC.
Inventor： Shuji Sakamoto , Katsuya Kimoto , Toshiyuki Nakatsuka
Abstract: To provide a sealer composition for root canal filling consisting of a liquid material containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal and water (b), wherein the pH of the liquid material is in the range from 3.5 to 5.5, and a powder material containing an acid reactive inorganic powder (c), wherein, a cured product of a kneaded material of the liquid material and the powder material comprises 3 to 20 part by weight of the polymer (a), 10 to 60 part by weight of the water (b), and 30 to 85 part by weight of the acid reactive inorganic powder (c).
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公开(公告)号：US20150093715A1
公开(公告)日：2015-04-02
申请号：US14224174
申请日：2014-03-25
Applicant: SHOFU INC.
Inventor： Tsukasa Sasaki , Ryouji Takei , Toshiyuki Nakatsuka , Katsuya Kimoto , Hideto Kasaba
Abstract: Provided herein is a viscous material container that is not likely to form continuous streaks or asperities on the surface of a viscous material discharged from the viscous material container even if the viscous material is highly viscous. A third section of a housing includes a wall having a wall portion that is positioned radially outwardly of a continuous angular portion with respect to a second imaginary center line, and extends along the continuous angular portion. The wall portion is configured to expand radially outward when a dental viscous material pushed out from a discharge port.
Abstract translation: 这里提供一种粘性材料容器，即使粘性材料高粘度，也不可能在从粘性材料容器排出的粘性材料的表面上形成连续的条纹或凹凸。 壳体的第三部分包括具有壁部分的壁，所述壁部相对于第二假想中心线径向向外设置在连续角部分之外，并且沿连续角部分延伸。 当从排出口推出牙科粘性材料时，壁部构造成径向向外扩张。
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Patent Agency Ranking
公开(公告)号：US10987283B2
公开(公告)日：2021-04-27
申请号：US16357399
申请日：2019-03-19
Applicant: SHOFU INC.
Inventor： Shun Shimosoyama , Katsuya Kimoto
Abstract: To provide a glass ionomer cement having excellent removality of the excess cement after setting because of having shape retaining property where a kneaded material does not drip and flow by their own weights, few risk of water sensitivity and excellent operability at the bonding such that excess cement can be removed easily after an application in an oral cavity in an early timing in spite of exhibiting a thin film thickness at the bonding. A dental glass ionomer cement composition for luting comprises at least; a component (a) acid reactive glass powder having an average particle diameter within a range of 4.5 to 7.0 μm, a component (b) polymer of an acid group-containing polymerizable monomer having a weight average molecular weight within a range of 30000 to 100000, a component (c) chelating agent and a component (d) water, wherein a plastic flow distance of a kneaded material before setting is 2 mm or less, and a removal possible time of an excess cement is 2 minutes or less.
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公开(公告)号：US10307344B2
公开(公告)日：2019-06-04
申请号：US15431989
申请日：2017-02-14
Applicant: SHOFU INC.
Inventor： Shuji Sakamoto , Katsuya Kimoto , Toshiyuki Nakatsuka
Abstract: To provide a two-paste type sealer composition for root canal filling consisting of a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a second paste containing an acid reactive inorganic powder (d), water (c) and a thickener (e), wherein, a cured product of a kneaded material of the first paste and the second paste comprises 3 to 20 part by weight of the polymer (a), 15 to 60 part by weight of the water (c), and 30 to 70 part by weight of the acid reactive inorganic powder (d).
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公开(公告)号：US09393082B2
公开(公告)日：2016-07-19
申请号：US14224180
申请日：2014-03-25
Applicant: SHOFU INC.
Inventor： Tsukasa Sasaki , Ryouji Takei , Toshiyuki Nakatsuka , Katsuya Kimoto , Hideto Kasaba
IPC: B67D7/60 , G01F11/00 , A61C5/06 , B05C17/005
Abstract: A viscous material container that makes it unlikely that air remains in a housing when a piston is inserted from an insertion port of the housing. A first section of the housing is formed with two groove portions communicating with a first passage to discharge air in the first passage when a piston is inserted from an insertion port. The two groove portions communicate with the insertion port, and extend along a first imaginary center line.
Abstract translation: 一种粘性材料容器，当活塞从壳体的插入口插入时，使得空气不可能保持在壳体中。 当活塞从插入口插入时，壳体的第一部分形成有与第一通道连通的两个凹槽部分，以排出第一通道中的空气。 两个槽部与插入口连通，沿第一假想中心线延伸。
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公开(公告)号：US09345555B2
公开(公告)日：2016-05-24
申请号：US14224174
申请日：2014-03-25
Applicant: SHOFU INC.
Inventor： Tsukasa Sasaki , Ryouji Takei , Toshiyuki Nakatsuka , Katsuya Kimoto , Hideto Kasaba
Abstract: Provided herein is a viscous material container that is not likely to form continuous streaks or asperities on the surface of a viscous material discharged from the viscous material container even if the viscous material is highly viscous. A third section of a housing includes a wall having a wall portion that is positioned radially outwardly of a continuous angular portion with respect to a second imaginary center line, and extends along the continuous angular portion. The wall portion is configured to expand radially outward when a dental viscous material pushed out from a discharge port.
Abstract translation: 这里提供一种粘性材料容器，即使粘性材料高粘度，也不可能在从粘性材料容器排出的粘性材料的表面上形成连续的条纹或凹凸。 壳体的第三部分包括具有壁部分的壁，所述壁部相对于第二假想中心线径向向外设置在连续角部分之外，并且沿连续角部分延伸。 当从排出口推出牙科粘性材料时，壁部构造成径向向外扩张。
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公开(公告)号：US20150090742A1
公开(公告)日：2015-04-02
申请号：US14224180
申请日：2014-03-25
Applicant: SHOFU INC.
Inventor： Tsukasa Sasaki , Ryouji Takei , Toshiyuki Nakatsuka , Katsuya Kimoto , Hideto Kasaba
IPC: A61C5/06 , B05C17/005
Abstract: A viscous material container that makes it unlikely that air remains in a housing when a piston is inserted from an insertion port of the housing. A first section of the housing is formed with two groove portions communicating with a first passage to discharge air in the first passage when a piston is inserted from an insertion port. The two groove portions communicate with the insertion port, and extend along a first imaginary center line.
Abstract translation: 一种粘性材料容器，当活塞从壳体的插入口插入时，使得空气不可能保持在壳体中。 当活塞从插入口插入时，壳体的第一部分形成有与第一通道连通的两个凹槽部分，以排出第一通道中的空气。 两个槽部与插入口连通，沿第一假想中心线延伸。
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