Patents by Inventor Hideki Kazama

Hideki Kazama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200330333
    Abstract: The dental restorative material of the present invention is a dental restorative material that contains a resin matrix and an inorganic filler in an amount of 25 to 1,000 parts by mass per 100 parts by mass of the resin matrix, and in the dental restorative material, the resin matrix contains a polyurethane resin, and the inorganic filler has an average particle diameter of 0.001 to 100 ?m. According to the present invention, a dental restorative material that has a high bending strength and a high surface hardness, and is excellent in transparency and cutting workability, and a resin material for dental cutting work containing the same can be provided.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 22, 2020
    Applicant: Tokuyama Dental Corporation
    Inventors: Takuya SUZUKI, Hideki KAZAMA
  • Publication number: 20200299008
    Abstract: Filling of a powder particle material is executed for a flexible container bag (hereinafter, referred to as “flex container bag”) by executing a powder particle material filling step of filling the flex container bag with the powder particle material by supplying the powder particle material to the flex container bag, and a tapping step of executing a lifting operation of lifting up the flex container bag filled with the powder particle material to cause the flex container bag to be distant from a floor surface or a base bed thereabove and a dropping operation of dropping the flex container bag by releasing the lifting by the lifting operation to cause the flex container bag to collide with the floor surface or the base bed. The handling property of the flex container bag filled with the powder particle material can further be improved.
    Type: Application
    Filed: February 16, 2017
    Publication date: September 24, 2020
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Hideki Matsushita, Kenji Nakamura, Hideo Kazama
  • Publication number: 20190355490
    Abstract: There is provided a CNTs wire capable of materializing a low resistivity and improving the electroconductivity. The CNT wire is formed from a single CNT aggregate constituted of a plurality of CNTs . . . having a single- or multi-walled structure, or formed by bundling a plurality of the CNT aggregates. The proportion of the total number of the CNTs having a double-walled or triple-walled structure based on the number of the plurality of CNTs constituting the CNT wire is 75% or higher; the proportion of the total number of the CNTs having an average diameter of the innermost wall of 1.7 nm or smaller based on the number of the CNTs constituting the CNT wire is 75% or higher; and the full-width at half maximum ?? in azimuth angle in azimuth intensity distribution by SAXS indicating orientation of the plurality of CNT aggregates is 60° or smaller.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Satoshi YAMAZAKI, Yoshinori KAZAMA, Satoshi YAMASHITA, Koji FUJIMURA, Yuudai TANIMURA, Yukako NAKAI, Kazutomi MIYOSHI, Hideki AIZAWA, Kenji HATAMOTO
  • Patent number: 10392253
    Abstract: A low-resistivity carbon nanotube aggregate includes a plurality of carbon nanotubes each having one or more walls, wherein a ratio of a total number of carbon nanotubes that have two or three walls relative to a total number of said plurality of carbon nanotubes is 75% or greater, and wherein, in a G band of a Raman spectrum in the Raman spectroscopy of the plurality of carbon nanotubes, a G+/Gtotal ratio that is indicative of an amount of semiconductor carbon nanotubes relative to metallic carbon nanotubes is 0.70 or greater.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 27, 2019
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Masashige Watanabe, Hideki Aizawa, Kazutomi Miyoshi, Satoshi Yamashita, Yoshinori Kazama, Yuudai Tanimura, Koji Fujimura, Morinobu Endo, Kenji Takeuchi, Masatsugu Fujishige
  • Publication number: 20190231684
    Abstract: A method for preventing mastitis in lactating livestock includes forming a teat pack for the lactating livestock by adhering one of (i) a base comprising at least (A) a polymer latex and (ii) a secondary agent comprising at least (B) a coagulant to a teat of the lactating livestock, and subsequently adhering the other to the teat.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Applicant: TOKUYAMA CORPORATION
    Inventors: Hitoshi Kondo, Yoji Inui, Hideki Kazama
  • Publication number: 20170319473
    Abstract: A teat protective pack material for coating teats of lactating livestock to prevent mastitis is disclosed, the teat protective pack material including a polymer latex and a coagulant for coagulating the polymer latex to form a film. The teat protective pack material optionally includes a surfactant, a mold-releasing agent, a water-soluble polymer, water and/or a water-soluble solvent, an antifreezing agent, etc. if required. The teat protective pack material, may have excellent adhesiveness, elasticity, abrasion resistance, durability, aging resistance, oil resistance, weatherability, breast shape followability, etc. The teat protective pack material may be capable of immediately coating the whole teat and thus preventing adhesion of teat packs adjacent to each other, and, when milking again or in case of emergency, may be able to be quickly removed without using any additional facility, material, etc.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Applicant: TOKUYAMA CORPORATION
    Inventors: Hitoshi Kondo, Yoji Inui, Hideki Kazama
  • Patent number: 9114080
    Abstract: A dental curable composition includes: a radically polymerizable monomer; a polymerization initiator; and a hyperbranched polymer, in which the hyperbranched polymer includes a unit structure represented by the general formula (I) and unit structures represented by the general formula (IIA) and/or the general formula (IIB) (in the general formula (I), A represents a single bond for bonding C and R1, >C?O, —O—, or —COO—, R1 represents a divalent saturated aliphatic hydrocarbon group or a divalent aromatic hydrocarbon group, and R2 represents a hydrogen atom or a methyl group; and in the general formula (IIA) and the general formula (IIB), R3, R4, and R5 each represent a hydrogen atom, an alkyl group, an alkoxycarbonyl group, an aryl group, or a cyano group, and R6 represents an alkylene group).
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 25, 2015
    Assignee: TOKUYAMA DENTAL CORPORATION
    Inventors: Tomonao Shimizu, Tatsuya Yamazaki, Hideki Kazama, Hironobu Akizumi
  • Patent number: 8796354
    Abstract: [Problems] A dental adhesive composition containing an acid group-containing polymerizable monomer, that can be used as a dental adhesive material or a primer. The dental adhesive composition has excellent durability of adhesion exhibiting further improved adhering strength and durability of adhesion enabling teeth to be more strongly adhered to a composite resin or a prosthetic over extended periods of time. [Means for Solution] The dental adhesive composition contains a polymerizable monomer and ions of an element of the Group IV as basic components, at least 10 mass % of the polymerizable monomer being a polymerizable monomer having a hydrogenphosphate diester group, such as bis(2-methacryloyloxyethyl)hydrogenphosphate or 2-methacryloyloxyethylphenyl hydrogenphosphate, and the content of ions of the element of the Group IV such as titanium ions or zirconium ions in the composition being 0.1 to 1.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: August 5, 2014
    Assignee: Tokuyama Dental Corporation
    Inventors: Hidetoshi Gyakushi, Takeshi Suzuki, Mihoko Kajikawa, Hideki Kazama
  • Patent number: 8686065
    Abstract: To improve an adhesive force of an adhesive agent between an impression material and a tray, and to stabilize the adhesive force therebetween, provided is an adhesive agent for the adhesion between an alginate impression material and an impression tray for dental applications, which includes a polyamine compound having two or more amino groups in a molecule and a solvent.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: April 1, 2014
    Assignee: Tokuyama Dental Corporation
    Inventors: Makoto Oguri, Hideki Kazama
  • Publication number: 20130324635
    Abstract: A dental curable composition includes: a radically polymerizable monomer; a polymerization initiator; and a hyperbranched polymer, in which the hyperbranched polymer includes a unit structure represented by the general formula (I) and unit structures represented by the general formula (IIA) and/or the general formula (IIB) (in the general formula (I), A represents a single bond for bonding C and R1, >C?O, —O—, or —COO—, R1 represents a divalent saturated aliphatic hydrocarbon group or a divalent aromatic hydrocarbon group, and R2 represents a hydrogen atom or a methyl group; and in the general formula (IIA) and the general formula (IIB), R3, R4, and R5 each represent a hydrogen atom, an alkyl group, an alkoxycarbonyl group, an aryl group, or a cyano group, and R6 represents an alkylene group).
    Type: Application
    Filed: February 10, 2012
    Publication date: December 5, 2013
    Applicant: TOKUYAMA DENTAL CORPORATION
    Inventors: Tomonao Shimizu, Tatsuya Yamazaki, Hideki Kazama, Hironobu Akizumi
  • Patent number: 8506298
    Abstract: Provided is a dental filling/restoration kit, in which a pretreatment material and a filling/restoring material can be cured by only one irradiation with light, which enables further improved adhesion between a tooth and the filling/restoring material, which prevents the filling/restoring material from being easily colored, to thereby exhibit its excellent sensuousness. Specifically provided is a dental filling/restoration kit which includes: a filling/restoring material (A) containing 100 parts by mass of a radical-polymerizable monomer (a) containing 3 to 30 parts by mass of a water-soluble radical-polymerizable monomer having no acidic group (a1), a photopolymerization initiator (b), and a filler (c), the filler (c) being contained in an amount of 80 to 2,000 parts by mass relative to 100 parts by mass of the radical-polymerizable monomer (a); and a pretreatment material (B) containing a radical-polymerizable monomer having an acidic group (d) and water (e).
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: August 13, 2013
    Assignee: Tokuyama Dental Corporation
    Inventors: Takeshi Suzuki, Hideki Kazama
  • Publication number: 20130071804
    Abstract: The present invention discloses an adhesive for orthodontic attachments, which contains (A) a polymerizable monomer, (B) a polymerization initiator and (C) a fluorescent dye and, when cured, exhibits a fluorescence spectrum having a peak at 400 to 800 nm. As the polymerization initiator (B), there is preferably used a compound which generates a radical through the transfer of hydrogen between two components, or a compound which generates a radical species through intramolecular cleavage. As the fluorescent dye (C), a coumarin type dye is used preferably.
    Type: Application
    Filed: November 9, 2012
    Publication date: March 21, 2013
    Applicants: TOKUYAMA DENTAL CORPORATION, NIHON UNIVERSITY
    Inventors: Yasuhiro Namura, Noriyoshi Shimizu, Shizuka Amma, Takeshi Suzuki, Hideki Kazama
  • Patent number: 8307160
    Abstract: There is provided is an interface apparatus including: a stream converter receiving write-addresses and write-data, storing the received data in a buffer, and sorting the stored write-data in the order of the write-addresses to output the write-data as stream-data; a cache memory storing received stream-data if a load-signal indicates that the stream-data are necessarily loaded and outputting data stored in a storage device corresponding to an input cache-address as cache-data; a controller determining whether or not data allocated with a read-address have already been loaded, outputting the load-signal instructing the loading on the cache memory if not loaded, and outputting a load-address indicating a load-completed-address of the cache memory; and at least one address converter calculating which one of the storage devices the allocated data are stored in, by using the load-address, outputting the calculated value as the cache-address to the cache memory, and outputting the cache-data as read-data.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 6, 2012
    Assignee: Sony Corporation
    Inventor: Hideki Kazama
  • Publication number: 20110098375
    Abstract: [Problems] A dental adhesive composition containing an acid group-containing polymerizable monomer, that can be used as a dental adhesive material or a primer. The dental adhesive composition has excellent durability of adhesion exhibiting further improved adhering strength and durability of adhesion enabling teeth to be more strongly adhered to a composite resin or a prosthetic over extended periods of time. [Means for Solution] The dental adhesive composition contains a polymerizable monomer and ions of an element of the Group IV as basic components, at least 10 mass % of the polymerizable monomer being a polymerizable monomer having a hydrogenphosphate diester group, such as bis(2-methacryloyloxyethyl)hydrogenphosphate or 2-methacryloyloxyethylphenyl hydrogenphosphate, and the content of ions of the element of the Group IV such as titanium ions or zirconium ions in the composition being 0.1 to 1.
    Type: Application
    Filed: July 22, 2009
    Publication date: April 28, 2011
    Applicant: Tokuyama Dental Corporation
    Inventors: Hidetoshi Gyakushi, Takeshi Suzuki, Mihoko Kajikawa, Hideki Kazama
  • Patent number: 7906565
    Abstract: A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: March 15, 2011
    Assignees: Tokuyama Corporation, Tokuyama Dental Corporation
    Inventors: Masanao Hashiguchi, Mitsuhiro Yamashita, Hideki Kazama
  • Publication number: 20100216096
    Abstract: Provided is a dental filling/restoration kit, in which a pretreatment material and a filling/restoring material can be cured by only one irradiation with light, which enables further improved adhesion between a tooth and the filling/restoring material, which prevents the filling/restoring material from being easily colored, to thereby exhibit its excellent sensuousness. Specifically provided is a dental filling/restoration kit which includes: a filling/restoring material (A) containing 100 parts by mass of a radical-polymerizable monomer (a) containing 3 to 30 parts by mass of a water-soluble radical-polymerizable monomer having no acidic group (a1), a photopolymerization initiator (b), and a filler (c), the filler (c) being contained in an amount of 80 to 2,000 parts by mass relative to 100 parts by mass of the radical-polymerizable monomer (a); and a pretreatment material (B) containing a radical-polymerizable monomer having an acidic group (d) and water (e).
    Type: Application
    Filed: June 5, 2008
    Publication date: August 26, 2010
    Applicant: TOKUYAMA DENTAL CORPORATION
    Inventors: Takeshi Suzuki, Hideki Kazama
  • Publication number: 20100199044
    Abstract: There is provided is an interface apparatus including: a stream converter receiving write-addresses and write-data, storing the received data in a buffer, and sorting the stored write-data in the order of the write-addresses to output the write-data as stream-data; a cache memory storing received stream-data if a load-signal indicates that the stream-data are necessarily loaded and outputting data stored in a storage device corresponding to an input cache-address as cache-data; a controller determining whether or not data allocated with a read-address have already been loaded, outputting the load-signal instructing the loading on the cache memory if not loaded, and outputting a load-address indicating a load-completed-address of the cache memory; and at least one address converter calculating which one of the storage devices the allocated data are stored in, by using the load-address, outputting the calculated value as the cache-address to the cache memory, and outputting the cache-data as read-data.
    Type: Application
    Filed: January 27, 2010
    Publication date: August 5, 2010
    Applicant: Sony Corporation
    Inventor: Hideki Kazama
  • Patent number: 7741381
    Abstract: A curable composition comprising: (A) 100 parts by mass of a monomer component which comprises a radically polymerizable monomer and has a water absorbing capacity of not larger than 20% by weight; (B) 0.5 to 10 parts by mass of water; (C) 0.1 to 20 parts by mass of a surfactant; and (D) an effective amount of a radical polymerization initiator. The curable composition is cured by polymerization in a state where a water layer is formed on the surfaces of the cured body that is being formed, effectively suppressing the hindrance of polymerization caused by oxygen and decreasing the formation of unpolymerized product on the surfaces of the cured body. The curable composition is particularly useful as a dental restorative which involves difficulty when it is to be polymerized while shutting off oxygen.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: June 22, 2010
    Assignees: Tokuyama Corporation, Tokuyama Dental Corporation
    Inventors: Seiji Nakata, Naoki Kakiuchi, Hideki Kazama
  • Publication number: 20100120941
    Abstract: To improve an adhesive force of an adhesive agent between an impression material and a tray, and to stabilize the adhesive force therebetween, provided is an adhesive agent for the adhesion between an alginate impression material and an impression tray for dental applications, which includes a polyamine compound having two or more amino groups in a molecule and a solvent.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 13, 2010
    Applicant: TOKUYAMA DENTAL CORPORATION
    Inventors: Makoto Oguri, Hideki Kazama
  • Publication number: 20080293011
    Abstract: A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base.
    Type: Application
    Filed: February 2, 2006
    Publication date: November 27, 2008
    Applicants: TOKUYAMA CORPORATION, TOKUYAMA DENTAL CORPORATION
    Inventors: Masanao Hashiguchi, Mitsuhiro Yamashita, Hideki Kazama