Patents by Inventor Norimasa Nakamura

Norimasa Nakamura 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).

  • Patent number: 11254798
    Abstract: Provided is a one-pack type adhesive which contains (A) an epoxy resin, (B) a curing agent, (C) a curing accelerator, (D) an inorganic filler and (E) a polycarbodiimide compound, and wherein: the curing agent (B) contains at least one amine-based curing agent; the curing accelerator (C) contains at least one capsule type curing accelerator; the inorganic filler (D) contains at least one flake-like inorganic filler; and the content of the inorganic filler (D) is 10-200 parts by mass relative to 100 parts by mass of the epoxy resin (A).
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: February 22, 2022
    Assignee: NISSHINBO CHEMICAL INC.
    Inventors: Ayumi Horiuchi, Norimasa Nakamura
  • Publication number: 20200172697
    Abstract: Provided is a one-pack type adhesive which contains (A) an epoxy resin, (B) a curing agent, (C) a curing accelerator, (D) an inorganic filler and (E) a polycarbodiimide compound, and wherein: the curing agent (B) contains at least one amine-based curing agent; the curing accelerator (C) contains at least one capsule type curing accelerator; the inorganic filler (D) contains at least one flake-like inorganic filler; and the content of the inorganic filler (D) is 10-200 parts by mass relative to 100 parts by mass of the epoxy resin (A).
    Type: Application
    Filed: August 9, 2018
    Publication date: June 4, 2020
    Applicant: NISSHINBO CHEMICAL INC.
    Inventors: Ayumi Horiuchi, Norimasa Nakamura
  • Publication number: 20200121463
    Abstract: An improved method of treating an osteochondral defect is provided, which is a composite tissue for treating or preventing a disease, disorder, or condition associated with an osteochondral defect, comprising a three-dimensional synthetic tissue and an artificial bone, wherein the three-dimensional synthetic tissue is substantially made of a cell and an extracellular matrix derived from the cell, the extracellular matrix contains fibronectin, collagen I, collagen III, and vitronectin, and the extracellular matrix is diffusedly distributed in the tissue.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 23, 2020
    Inventors: Hideki Yoshikawa, Norimasa Nakamura, Kazunori Shimomura, Yu Moriguchi
  • Patent number: 9694107
    Abstract: The present invention can be used for actual implantation surgery without a scaffold. The present invention provides a synthetic tissue or complex which can be produced by culture and has a high level of differentiation ability. The present invention also provides a therapy and medicament for repairing and/or regenerating tissue using replacement and covering. By culturing cells under specific culture conditions such that medium contains an extracellular matrix synthesis promoting agent, the cells are organized and are easily detached from a culture dish. The present invention was achieved by finding such a phenomenon. In addition, the self contraction of the tissue can be regulated by culturing the tissue in a suspended manner. Therefore, it is possible to regulate the three-dimensional shape of the tissue.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 4, 2017
    Assignee: Two Cells, Co., Ltd.
    Inventors: Norimasa Nakamura, Hideki Yoshikawa, Wataru Ando
  • Publication number: 20160256608
    Abstract: The present invention can be used for actual implantation surgery without a scaffold. The present invention provides a synthetic tissue or complex which can be produced by culture and has a high level of differentiation ability. The present invention also provides a therapy and medicament for repairing and/or regenerating tissue using replacement and covering. By culturing cells under specific culture conditions such that medium contains an extracellular matrix synthesis promoting agent, the cells are organized and are easily detached from a culture dish. The present invention was achieved by finding such a phenomenon. In addition, the self contraction of the tissue can be regulated by culturing the tissue in a suspended manner. Therefore, it is possible to regulate the three-dimensional shape of the tissue.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 8, 2016
    Inventors: Norimasa Nakamura, Hideki Yoshikawa, Wataru Ando
  • Patent number: 9370606
    Abstract: The present invention can be used for actual implantation surgery without a scaffold. The present invention provides a synthetic tissue or complex which can be produced by culture and has a high level of differentiation ability. The present invention also provides a therapy and medicament for repairing and/or regenerating tissue using replacement and covering. By culturing cells under specific culture conditions such that medium contains an extracellular matrix synthesis promoting agent, the cells are organized and are easily detached from a culture dish. The present invention was achieved by finding such a phenomenon. In addition, the self contraction of the tissue can be regulated by culturing the tissue in a suspended manner. Therefore, it is possible to regulate the three-dimensional shape of the tissue.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 21, 2016
    Assignee: Two Cells, Co., Ltd.
    Inventors: Norimasa Nakamura, Hideki Yoshikawa, Wataru Ando
  • Publication number: 20150367034
    Abstract: Provided are an improved three-dimensional synthetic tissue, a composite tissue thereof, and a production method of the same. The present invention provides: an implantable synthetic tissue substantially made of a mesenchymal stem cell induced from a pluripotent stem cell or an equivalent cell thereof, and an extracellular matrix derived from the cell; a composite tissue for treating or preventing a disease, disorder, or condition associated with an osteochondral defect, comprising a synthetic tissue and an artificial bone, wherein the artificial bone is smaller in size than a depth of a defect of a bone section in the osteochondral defect; and a production method of the same.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 24, 2015
    Inventors: Hideki Yoshikawa, Norimasa Nakamura, Kazunori Shimomura, Yu Moriguchi, Ryota Chijimatsu, Yukihiko Yasui
  • Publication number: 20150081033
    Abstract: An improved method of treating an osteochondral defect is provided, which is a composite tissue for treating or preventing a disease, disorder, or condition associated with an osteochondral defect, comprising a three-dimensional synthetic tissue and an artificial bone, wherein the three-dimensional synthetic tissue is substantially made of a cell and an extracellular matrix derived from the cell, the extracellular matrix contains fibronectin, collagen I, collagen III, and vitronectin, and the extracellular matrix is diffusedly distributed in the tissue.
    Type: Application
    Filed: December 27, 2012
    Publication date: March 19, 2015
    Inventors: Hideki Yoshikawa, Norimasa Nakamura, Kazunori Shimomura, Yu Moriguchi
  • Patent number: 7368493
    Abstract: A carbodiimide composition having an improved heat resistance which meets conventional requirements for a carbodiimide compound to be compounded in an ester-group-containing resin or a biodegradable plastic, and exhibiting no coloring problems due to yellowing, and having a superior stabilizing effect agains hydrolysis. The carbodiimide composition comprises a carbodiimide compound (A) and an antioxidant (B), having a 5% weight loss temperature not lower than 250° C. as determined by a thermogravimetric (TG) method, wherein an antioxidant (B) is dispersed and present in the composition by admixing during synthesis of a carbodiimide compound (A), a stabilizer against hydrolysis mainly comprising the carbodiimide composition and a thermoplastic resin composition containing the same.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 6, 2008
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura
  • Patent number: 7361701
    Abstract: A biodegradable plastic composition which can be stably adjusted in biodegradation rate, and has greatly improved resistance to hydrolysis and weather, in particular the former, and durability resulting from the improved resistances; a molded article thereof; and a method for controlling biodegradation rate using the same composition. The biodegradable plastic composition comprising (A) 100 parts by weight of biodegradable plastic, (B) 0.01 to 10 parts by weight of a carbodiimide compound and (C) 0.01 to 10 parts by weight of at least one compound selected from the group consisting of benzotriazole-, triazine- and hydroxylamine-based compounds; the molded article thereof; and the method for controlling biodegradation rate using the same composition.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: April 22, 2008
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura, Yoshihiro Yamazaki, Tsuyoshi Takeuchi
  • Publication number: 20080004713
    Abstract: The present invention can be used for actual implantation surgery without a scaffold. The present invention provides a synthetic tissue or complex which can be produced by culture and has a high level of differentiation ability. The present invention also provides a therapy and medicament for repairing and/or regenerating tissue using replacement and covering. By culturing cells under specific culture conditions such that medium contains an extracellular matrix synthesis promoting agent, the cells are organized and are easily detached from a culture dish. The present invention was achieved by finding such a phenomenon. In addition, the self contraction of the tissue can be regulated by culturing the tissue in a suspended manner. Therefore, it is possible to regulate the three-dimensional shape of the tissue.
    Type: Application
    Filed: February 16, 2007
    Publication date: January 3, 2008
    Inventors: Norimasa Nakamura, Hideki Yoshikawa, Wataru Ando
  • Publication number: 20060003085
    Abstract: There is provided a process for producing a cured coating film by crosslinking a crosslinkable aqueous resin with aqueous polycarbodiimide in the presence of a crosslinking accelerator made of metal carbonate soluble in water, aqueous ammonia or aqueous organic amine solution. According to the present invention, a cured coating film having a sufficient strength can be produced for a shorter period of time than conventionally.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 5, 2006
    Inventors: Ikuo Takahashi, Tomoaki Shoji, Norimasa Nakamura
  • Publication number: 20050032947
    Abstract: A carbodiimide composition having an improved heat resistance which meets conventional requirements for a carbodiimide compound to be compounded in an ester-group-containing resin or a biodegradable plastic, and exhibiting no coloring problems due to yellowing, and having a superior stabilizing effect agains hydrolysis. The carbodiimide composition comprises a carbodiimide compound (A) and an antioxidant (B), having a 5% weight loss temperature not lower than 250° C. as determined by a thermogravimetric (TG) method, wherein an antioxidant (B) is dispersed and present in the composition by admixing during synthesis of a carbodiimide compound (A), a stabilizer against hydrolysis mainly comprising the carbodiimide composition and a thermoplastic resin composition containing the same.
    Type: Application
    Filed: July 28, 2004
    Publication date: February 10, 2005
    Applicant: NISSHINBO INDUSTRIES, INC.
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura
  • Patent number: 6846860
    Abstract: A biodegradable plastic composition enabling to stably adjust biodegradation rate, improve hydrolysis resistance and heat resistance, and retain transparency, molded articles thereof and a method for controlling biodegradation rate of the biodegradable plastic. In more detail, a biodegradable plastic composition, characterized in that said composition is made by compounding 100 parts by weight of a biodegradable plastic (A), in particular, an aliphatic type polyester with 0.01 to 5 parts by weight of a carbodiimide compound (B) and 0.01 to 3 parts by weight of an antioxidant (C), in particular, a hindered phenol type antioxidant with a molecular weight of not less than 400 alone or mixed antioxidants of said hindered phenol type antioxidant and a phosphite type antioxidant, a molded article thereof and a method for controlling biodegradation rate of the biodegradable plastic.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: January 25, 2005
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura, Tsuyoshi Takeuchi
  • Publication number: 20040132860
    Abstract: A biodegradable plastic composition which can be stably adjusted in biodegradation rate, and has greatly improved resistance to hydrolysis and weather, in particular the former, and durability resulting from the improved resistances; a molded article thereof; and a method for controlling biodegradation rate using the same composition. The biodegradable plastic composition comprising (A) 100 parts by weight of biodegradable plastic, (B) 0.01 to 10 parts by weight of a carbodiimide compound and (C) 0.01 to 10 parts by weight of at least one compound selected from the group consisting of benzotriazole-, triazine- and hydroxylamine-based compounds; the molded article thereof; and the method for controlling biodegradation rate using the same composition.
    Type: Application
    Filed: November 3, 2003
    Publication date: July 8, 2004
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura, Yoshihiro Yamazaki, Tsuyoshi Takeuchi
  • Publication number: 20030228478
    Abstract: A biodegradable plastic composition enabling to stably adjust biodegradation rate, improve hydrolysis resistance and heat resistance, and retain transparency, molded articles thereof and a method for controlling biodegradation rate of the biodegradable plastic. In more detail, a biodegradable plastic composition, characterized in that said composition is made by compounding 100 parts by weight of a biodegradable plastic (A), in particular, an aliphatic type polyester with 0.01 to 5 parts by weight of a carbodiimide compound (B) and 0.01 to 3 parts by weight of an antioxidant (C), in particular, a hindered phenol type antioxidant with a molecular weight of not less than 400 alone or mixed antioxidants of said hindered phenol type antioxidant and a phosphite type antioxidant, a molded article thereof and a method for controlling biodegradation rate of the biodegradable plastic.
    Type: Application
    Filed: April 18, 2003
    Publication date: December 11, 2003
    Inventors: Ikuo Takahashi, Hirotaka Iida, Norimasa Nakamura, Tsuyoshi Takeuchi
  • Publication number: 20030048768
    Abstract: This invention provides an information device which disenables unselected wireless devices by directly controlling hardware, and thus can prevent interference between wireless devices using the same frequency band. In this invention, a BIOS controls an EC for a wireless module selected based on a user instruction, thereby controlling power supply to a Bluetooth module and power supply to a wireless LAN module. This makes it possible to enable either one of the modules and disenable the other module.
    Type: Application
    Filed: March 21, 2002
    Publication date: March 13, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norimasa Nakamura, Toru Hanada, Takeshi Tajima
  • Patent number: 6524711
    Abstract: A thermosetting resin composition comprising: a polycarbodiimide obtained from organic polyisocyanates containing at least one kind of aromatic polyisocyanate, an epoxy resin, a curing agent for epoxy resin, and a rubber component, wherein the proportions of the individual components are 100 parts by weight of the polycarbodiimide, 30 to 150 parts by weight of the epoxy resin, 1.0 equivalent or less, relative to the epoxy resin, of the curing agent for epoxy resin, and 0.1 to 20 parts by weight of the rubber component which is, in a semi-cured state (a B-stage), free from resin cracking or powder detaching when bent and therefore easy to handle and, after curing, has good electrical properties and heat resistance.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: February 25, 2003
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yasuo Imashiro, Takahiko Ito, Hideshi Tomita, Norimasa Nakamura
  • Patent number: 6485833
    Abstract: A resin-coated metal foil comprising: a metal foil, and a resin layer formed on the metal foil by coating and semi-curing, on the metal foil, a composition containing a polycarbodiimide resin having a number-average molecular weight of 3,000 to 50,000, an epoxy resin, the proportions of the polycarbodiimide resin and the epoxy resin being 100 parts by weight and 20 to 2000 parts by weight, respectively. In the resin-coated metal foil, the resin is superior in handleability and storage stability in a semi-cured state and, after complete cure, high in heat resistance and superior in dielectric properties.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: November 26, 2002
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yasuo Imashiro, Takahiko Ito, Hideshi Tomita, Norimasa Nakamura
  • Patent number: 6440258
    Abstract: The present invention provides an adhesive film for semiconductor package, which comprises a polycarbodiimide resin, an epoxy resin and an inorganic filler, wherein the polycarbodiimide resin has a polystyrene-reduced number-average molecular weight of 3,000 to 50,000 as measured by gel permeation chromatography, the epoxy resin is contained in an amount of 20 to 150 parts by weight per 100 parts by weight of the polycarbodiimide resin, and the inorganic filler is contained in an amount of 30 to 70% by weight based on the total resin content.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: August 27, 2002
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yasuo Imashiro, Takahiko Ito, Hideshi Tomita, Norimasa Nakamura