Patents by Inventor Shotaro Itami

Shotaro Itami 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: 10789930
    Abstract: This invention is concerning a structure body containing inorganic particles having an average particle diameter of 6 mm to 50 mm, and 6 parts by mass to 40 parts by mass of a resin with respect to 100 parts by mass of the inorganic particles.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: September 29, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Nobuyuki Takahashi, Ryujin Ishiuchi, Shotaro Itami
  • Publication number: 20170263233
    Abstract: This invention is concerning a structure body containing inorganic particles having an average particle diameter of 6 mm to 50 mm, and 6 parts by mass to 40 parts by mass of a resin with respect to 100 parts by mass of the inorganic particles.
    Type: Application
    Filed: December 11, 2015
    Publication date: September 14, 2017
    Applicant: SHOWA DENKO K.K.
    Inventors: Nobuyuki TAKAHASHI, Ryujin ISHIUCHI, Shotaro ITAMI
  • Patent number: 9518205
    Abstract: The present invention is an unsaturated polyester resin composition comprising an unsaturated polyester (a), a monomer (b) having one polymerizable carbon-carbon double bond, a monomer (c) having two or more of (meth)acrylate groups, a filler (d) having high thermal conductivity, a glass fiber (e), a low profile additive (f), a curing agent (g), and a polymerization inhibitor (h), wherein the ratio by weight of the ingredient (b) to the ingredient (c) is from 50:50 to 75:25 and the unsaturated polyester resin composition comprises 400 to 1400 parts by weight of the ingredient (d) based on the total 100 parts by weight of the ingredients (a), (b), and (c). This unsaturated polyester resin composition has excellent curing properties without losing storage stability which can be used to provide a cured product having a low mold shrinkage ratio and high thermal conductivity.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 13, 2016
    Assignees: SHOWA DENKO K.K., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shotaro Itami, Masashige Tanaka, Hiroyuki Majima, Ryujin Ishiuchi, Hiroaki Sugita
  • Publication number: 20160326420
    Abstract: A thermosetting resin composition containing a polyfunctional (meth)acrylate (a), a high-thermal-conductivity filler (b) having a thermal conductivity of 20 to 250 W/m·K, a curing agent (c), and a copolymer (d) having an acid group containing phosphoric acid, wherein the amount of the high-thermal-conductivity filler (b) is from 1600 to 2100 parts by mass per 100 parts by mass of the polyfunctional (meth)acrylate (a), and the amount of the copolymer (d) having an acid group containing phosphoric acid is from 7.5 to 30 parts by mass per 100 parts by mass of the polyfunctional (meth)acrylate (a).
    Type: Application
    Filed: January 15, 2015
    Publication date: November 10, 2016
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryujin ISHIUCHI, Shotaro ITAMI, Hidekazu FUJITA
  • Publication number: 20140332712
    Abstract: The present invention is an unsaturated polyester resin composition comprising an unsaturated polyester (a), a monomer (b) having one polymerizable carbon-carbon double bond, a monomer (c) having two or more of (meth)acrylate groups, a filler (d) having high thermal conductivity, a glass fiber (e), a low profile additive (f), a curing agent (g), and a polymerization inhibitor (h), wherein the ratio by weight of the ingredient (b) to the ingredient (c) is from 50:50 to 75:25 and the unsaturated polyester resin composition comprises 400 to 1400 parts by weight of the ingredient (d) based on the total 100 parts by weight of the ingredients (a), (b), and (c). This unsaturated polyester resin composition has excellent curing properties without losing storage stability which can be used to provide a cured product having a low mold shrinkage ratio and high thermal conductivity.
    Type: Application
    Filed: December 13, 2012
    Publication date: November 13, 2014
    Inventors: Shotaro Itami, Masashige Tanaka, Hiroyuki Majima, Ryujin Ishiuchi, Hiroaki Sugita
  • Patent number: 8622234
    Abstract: A packaging container comprises an openable outer case and a bag for packaging a resin material in the outer case. The bag is partially turned back at fold portions so that part of the bag is turned inside out, and at least part of the out-turned part is fixed as a fixing part to any part other than the bag. The inner surfaces of the bag at the fold portions are placed in contact with each other, forming a contact portion, to seal the resin material. The contact portion is placed in correspondence with an openable part of an opening flap of the outer case.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: January 7, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Showa Denko Kabushiki Kaisha
    Inventors: Satoshi Koide, Shotaro Itami, Soh Hatakeyama, Hidekazu Kanbara, Shigeki Teruoka
  • Publication number: 20090277911
    Abstract: A packaging container comprises an openable outer case and a bag for packaging a resin material in the outer case. The bag is partially turned back at fold portions so that part of the bag is turned inside out, and at least part of the out-turned part is fixed as a fixing part to any part other than the bag. The inner surfaces of the bag at the fold portions are placed in contact with each other, forming a contact portion, to seal the resin material. The contact portion is placed in correspondence with an openable part of an opening flap of the outer case.
    Type: Application
    Filed: February 25, 2008
    Publication date: November 12, 2009
    Inventors: Satoshi Koide, Shotaro Itami, Soh Hatakeyama, Hidekazu Kanbara, Shigeki Teruoka
  • Publication number: 20070197687
    Abstract: An object of the present invention is to obtain low specific gravity unsaturated polyester resin compositions for lamp reflectors and molded articles thereof, which have a low and invariant specific gravity, and excellent surface smoothness, heat resistance, rigidity, dimensional accuracy, moldability, etc. The compositions comprise from 40 to 210 parts by weight of an inorganic filler having an average particle size of at least 0.5 ?m and from 30 to 160 parts by weight of a hollow filler having a pressure resistance of at least 2,100×104 N/m2 of based on 100 parts by weight of an unsaturated polyester resin and a crosslinking agent wherein the addition ratio by weight of the inorganic filler to the hollow filler lies within a range of 2:8 to 8:2.
    Type: Application
    Filed: March 9, 2005
    Publication date: August 23, 2007
    Applicant: SHOWA HIGHPOLYMER CO., LTD.
    Inventors: Kunio Yamane, Nobuhito Hagiwara, Shotaro Itami, Hidekazu Kaneoka