公开(公告)号：US20240102175A1

公开(公告)日：2024-03-28

申请号：US18273670

申请日：2022-01-20

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Miki HITOMI ,  Ayumi TAKAHASHI

IPC: C23F11/12 ,  C11D1/66 ,  C11D3/00 ,  C11D3/20 ,  C11D3/395

CPC classification number: C23F11/126 ,  C11D1/667 ,  C11D3/0073 ,  C11D3/2079 ,  C11D3/3951

Abstract: Corrosion inhibitors for hypochlorous acid aqueous solutions are provided and impart corrosion inhibiting effects of suppressing the generation of rust in contacted metal surfaces to hypochlorous acid aqueous solutions. Effective components of the corrosion inhibitors comprise only: an A component composed of (A1) a metal salt of formic acid and/or (A2) a metal salt of saturated carboxylic acid, wherein the number n of carbon atoms contained in the molecule is at least 2, the valence v of the acid is 1 or 2, and the value n/v obtained by dividing the number n of carbon atoms by the valence v of the carboxylic acid is 2-6; and a B component composed of a nonionic surfactant, wherein the mass ratio B/A of the B component to the A component in the effective component is 0.005-10.0.

公开(公告)号：US11939136B2

公开(公告)日：2024-03-26

申请号：US17423048

申请日：2019-12-19

Applicant: Tokuyama Dental Corporation

Inventor： Kazuhiko Okishio ,  Yasuhiro Ogawa

IPC: B65D81/32 ,  A61C5/68 ,  A61C19/00 ,  A61J1/10 ,  B65D75/58

CPC classification number: B65D81/3261 ,  A61C5/68 ,  A61C19/005 ,  A61J1/10 ,  B65D75/5816 ,  B65D75/5827

Abstract: A composite liquid agent package containing a first pouch filled with a first liquid and a second pouch filled with a second liquid; and a kit for preparing a multicomponent composition, the kit including an outer bag housing the composite liquid agent package. With an opposite end section of the first pouch and an opposite end section of the second pouch being superposed, the superposed parts are heated and pressurized to exclude sealants, which are present within the opposite end sections, outwardly of the extremities of the outer layers of the opposite end sections, while heat-fusing the two extruded sealants together to join the two pouches.

公开(公告)号：US11453761B2

公开(公告)日：2022-09-27

申请号：US17273225

申请日：2019-08-29

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Takuma Matsuo ,  Hiroshi Morisaki ,  Hironobu Akizumi

IPC: C08K7/18 ,  A61K6/887 ,  A61K6/831 ,  A61K6/76 ,  A61K6/16 ,  A61K6/17 ,  C08F222/10 ,  C08F2/44 ,  C08F2/50 ,  C08K3/36

Abstract: Provided is a composite material which comprises a resin matrix and inorganic particles dispersed therein, wherein the inorganic particles comprise: one or more groups (G-PID) of spherical particles uniform in particle diameter which comprise aggregates of inorganic spherical particles having a specific average primary-particle diameter, have a narrow particle-size-distribution width, and have a lower refractive index than the resin matrix; and a group (G-SFP) of ultrafine particles. The inorganic spherical particles which constitute all the groups of spherical particles uniform in particle diameter contained in the resin matrix have an arrangement structure which is a short-range order structure satisfying a specific requirement. Also provided are a curable composition giving the composite material and a method for producing the curable composition.

公开(公告)号：US11413597B2

公开(公告)日：2022-08-16

申请号：US17255295

申请日：2019-08-15

Applicant: Tokuyama Dental Corporation

Inventor： Tatsuya Yamazaki ,  Masaki Kinoshita

IPC: A61C13/16 ,  A61C19/00 ,  A61K6/884 ,  B01J19/00 ,  B01J19/06 ,  G03F7/00 ,  B01J19/12 ,  A61C13/15 ,  B29C35/00 ,  B29C35/08 ,  B29L31/00

Abstract: A polymerization apparatus according to an embodiment of the present invention includes: a light irradiator; and a polymerization vessel. The light irradiator includes a first casing and a light source assembly. The first casing includes a light source chamber defined by cylindrical side walls, a ceiling, and a floor including a light-transmissive window member. The light source assembly includes a base having a light-emitting surface on which a plurality of light-emitting diodes is disposed in a predetermined pattern and a heat-dissipating surface to which a heat sink is joined, and the light source assembly is disposed within the light source chamber so that the light-emitting surface faces the light-transmissive window member. The polymerization vessel includes a polymerization cup and a second casing. The polymerization cup has a frustoconical or substantially frustoconical shape that opens upward and increases in diameter upward, and is capable of housing an object therein. The second casing is a bottomed cylindrical or box-shaped casing having an opening at the apex thereof, the polymerization cup being attachably/detachably housed in the second casing via the opening. In this polymerization apparatus, light that has been emitted by the plurality of light-emitting diodes of the light irradiator and has passed through the light-transmissive window member is applied to the inside of the polymerization cup of the polymerization vessel.

公开(公告)号：US20220142757A1

公开(公告)日：2022-05-12

申请号：US17440218

申请日：2020-03-04

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Mana TOYODA ,  Ayumu GYAKUSHI ,  Tatsuya YAMAZAKI

IPC: A61C13/01 ,  A61C13/10 ,  A61C13/097 ,  A61C11/08

Abstract: A denture including a denture base where artificial teeth are fixed, the denture base includes a reference denture base member to which the artificial teeth are fixed and an adjusting member formed of a cured body of a curable denture base material, the adjusting member being joined to the reference denture base member, the adjusting member includes an anterior adjusting member that is joined to a mucosal surface of a base anterior region to form an anterior region together with the base anterior region, and a posterior adjusting member that is joined to a mucosal surface of a base posterior region to form a posterior region together with the base posterior region, and at least parts of base edge side distal end regions in the anterior region and the posterior region are formed of the anterior adjusting member and the posterior adjusting member, respectively.

公开(公告)号：US11325993B2

公开(公告)日：2022-05-10

申请号：US16756695

申请日：2018-12-10

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Keishi Fukudome

IPC: C08F4/40 ,  A61K6/887 ,  A61K6/61 ,  C09J4/00 ,  C09J11/06

Abstract: Provided are a chemical polymerization initiator including (a) a thiourea compound, (b) a peroxyester, (c) a divalent copper compound, and (d) an aryl borate compound, an adhesive composition, an adhesive composition kit, a dental material, and a dental material kit each using the chemical polymerization initiator, and a method of storing the adhesive composition.

公开(公告)号：US20220087795A1

公开(公告)日：2022-03-24

申请号：US17422504

申请日：2019-12-24

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Ayumu Gyakushi ,  Tatsuya Yamazaki

IPC: A61C13/01 ,  A61C8/00

Abstract: A curable composition for a denture base is provided which comprises a paste-like composition containing (A) (meth)acrylic monomers, (B) a monomer-absorbing porous organic cross-linked polymer which can absorb the (A) (meth)acrylic monomers, and (C) a polymerization initiator selected from a photopolymerization initiator and a thermal polymerization initiator, wherein the content of (B) the monomer-absorbing porous organic cross-linked polymer is 20-80 parts by mass per 100 parts by mass of the (A) (meth)acrylic monomers, and the absorption amount: RAb={(g−A)/(g−B)}, measured in accordance with JIS K5101-13-1:2004, and defined by the amount of (A) (meth)acrylic monomers: g−A (unit: g) absorbed per unit amount of (B) the monomer-absorbing porous organic cross-linked polymer: g−B (unit: g) is greater than or equal to 1.5.

公开(公告)号：US11273104B2

公开(公告)日：2022-03-15

申请号：US16491143

申请日：2018-03-05

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Koji Furuhashi ,  Hironobu Akizumi

IPC: A61K6/62 ,  A61K6/887 ,  A61K6/853 ,  A61K6/878 ,  A61K6/84 ,  A61K6/17

Abstract: Provided is a photocurable composition that contains a polymerizable monomer (A), a spherical filler (B) having an average particle size within the range of 230-1000 nm, and a polymerization initiator (C), the photocurable composition being such that: 90% or more of the individual particles that constitute the spherical filler (B) are within a range of ±5% of the average particle size; the polymerizable monomer (A) and the spherical filler (B) satisfy condition (X1) represented by formula (1): nP

公开(公告)号：US20220054241A1

公开(公告)日：2022-02-24

申请号：US17299307

申请日：2019-11-14

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Yuko NAGASAWA ,  Masaaki USHIODA

IPC: A61C13/12 ,  A61C13/00

Abstract: Provided is a joining structure for processing which joins reliably and without misalignment a dental CAD/CAM block to be machined to a block holder for holding same onto a processing device. An engagement protrusion is formed on a block-side joint surface of a block to be processed, and an engagement recess is formed on a holder-side joint surface of a block holder. An adhesive retaining space is formed therebetween. An adhesive is applied thereto, and the engagement protrusion and the engagement recess are engaged and joined. The engagement protrusion formed on the block to be processed is rectangular or substantially rectangular. If the engagement protrusion extends from the front surface towards the back surface of the block to be processed, the protrusion can removed from a mold (shown in FIGS. 5A and 5B) by moving the protrusion in the direction of the arrow (shown in FIGS. 5A and 5B).

公开(公告)号：US20210205062A1

公开(公告)日：2021-07-08

申请号：US17056665

申请日：2019-05-31

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Hiroshi MORISAKI ,  Naoto SHIOHIRA

IPC: A61C19/10 ,  A61C13/087 ,  G09B23/28

Abstract: [Object] To provide, for a composite resin (CR) having a wide range of applicable colors (shades) (wide-ranging color applicable CR), such as a CR having light diffusion properties and a CR that produces color by means of a structural color, a technology with which an excellent effect, specifically, an increased breadth (number) of applicable shades in comparison to an existing CR other than a wide-ranging color applicable CR, can be achieved.
[Solving Means] For example, in a demonstration instrument, a plurality of samples is prepared, a single wide-ranging color applicable CR has been used to restore a cavity in artificial teeth each having a different shade, the cavity being formed at a predetermined position of the artificial teeth, and the plurality of samples is disposed side by side and fixed on a display surface of a display plate, thereby making it possible to compare/contrast conditions of restored portions of the samples to each other and the color tone applicability thereof to those of a teeth to be restored.