Patents by Inventor Jun Akai

Jun Akai 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: 20150353671
    Abstract: A polyurethane foam panel which is obtained by mixing a polyol composition containing a polyol compound and a water as a foaming agent with a polyisocyanate component and causing these components to react with each other, and which has a lengthwise direction, a widthwise direction, and a thickness direction, wherein the panel has a 10% compressive strength Sb of 3 N/cm2 or less in the widthwise direction and has a thermoconductivity ? of 0.04 W/m·K or less.
    Type: Application
    Filed: December 20, 2013
    Publication date: December 10, 2015
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Tsuguo WATANABE, Jun AKAI
  • Publication number: 20150345135
    Abstract: A construction structure 1 includes a plurality of lengthened members 2 located to make individual longitudinal directions of the members parallel to each other in a first direction D1 and to be arranged side by side in a second direction D2 orthogonal to the first direction D1, and a panel 3 fittable to between the lengthened members 2,2, wherein the panel 3 is a foam having a plurality of cells 31 formed lengthwise along a direction orthogonal to the second direction D2 to have elasticity in the second direction D2.
    Type: Application
    Filed: December 20, 2013
    Publication date: December 3, 2015
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Tsuguo WATANABE, Jun AKAI
  • Publication number: 20150337071
    Abstract: A polyurethane foam panel which is obtained by mixing a polyol composition comprising a polyol compound and a water as a foaming agent with a polyisocyanate component, and causing these components to react with each other, and which has a lengthwise direction, a widthwise direction, and a thickness direction, wherein the foam density is 15 kg/m3 or less, and the ratio of the 10% compressive strength Sa in the lengthwise direction to the 10% compressive strength Sb in the widthwise direction (Sa/Sb) is 2 or more.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 26, 2015
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Tsuguo WATANABE, Jun AKAI
  • Publication number: 20140155509
    Abstract: A polyol composition for a rigid polyurethane foam, which comprises polyol compounds, and water as a blowing agent, and which is mixed with a polyisocyanate component to react therewith, and thereby forming the rigid polyurethane foam, wherein the polyol compounds comprise a polyether polyol (A) which is a polymer made from an alkylene oxide and has an average functional group number of 2 to 4 and a weight-average molecular weight of 3000 to 8000, and a short glycol (B) having a molecular weight less than 250, and the water is contained in an amount of 20 to 100 parts by weight for 100 parts by weight of the polyol compounds.
    Type: Application
    Filed: June 12, 2012
    Publication date: June 5, 2014
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Tsuguo Watanabe, Jun Akai
  • Publication number: 20140148524
    Abstract: A polyurethane foam panel, obtained by mixing a polyol composition comprising polyol compounds, and water as a blowing agent with a polyisocyanate component to react therewith, wherein the polyol compounds comprise a polyether polyol (A) which is a polymer made from an alkylene oxide and has an average functional group number of 2 to 4 and a weight-average molecular weight of 3000 to 8000, and a short glycol (B) having a molecular weight less than 250, the water is contained in an amount of 20 to 100 parts by weight for 100 parts by weight of the polyol compounds, and the thickness direction of the polyurethane foam panel is substantially perpendicular to the foamed direction of cells in the foam or at the time of mixing and reacting the polyol composition and the polyisocyanate component with each other, the isocyanate index of the component is 30 or less.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 29, 2014
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Tsuguo Watanabe, Jun Akai
  • Patent number: 7612205
    Abstract: A main object is to provide a crystal of 6-fluoro-1-methyl-7-[4-(5-methyl-2-oxo-1,3-dioxolen-4-yl)-methyl-1-piperazinyl]-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid acetonitrile solvate (Compound B) which is an intermediate for producing preferentially the type III crystal of 6-fluoro-1-methyl-7-[4-(5-methyl-2-oxo-1,3-dioxolen-4-yl)methyl-1-piperazinyl]-4-oxo-4H-[1,3]-thiazeto[3,2-a]quinoline-3-carboxylic acid (Compound A). A crystal of Compound B can be preferentially precipitated by controlling the supersaturation concentration in crystalization using acetonitrile as a solvent. Subsequently, the type III crystal of Compound A can be produced by performing desolvation of the crystal.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: November 3, 2009
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Jun Akai, Hiroshi Nishida
  • Publication number: 20070149540
    Abstract: A main object is to provide a crystal of 6-fluoro-1-methyl-7-[4-(5-methyl-2-oxo-1,3-dioxolen-4-yl)-methyl-1-piperazinyl]-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid acetonitrile solvate (Compound B) which is an intermediate for producing preferentially the type III crystal of 6-fluoro-1-methyl-7-[4-(5-methyl-2-oxo-1,3-dioxolen-4-yl)methyl-1-piperazinyl]-4-oxo-4H-[1,3]-thiazeto[3,2-a]quinoline-3-carboxylic acid (Compound A). A crystal of Compound B can be preferentially precipitated by controlling the supersaturation concentration in crystalization using acetonitrile as a solvent. Subsequently, the type III crystal of Compound A can be produced by performing desolvation of the crystal.
    Type: Application
    Filed: April 28, 2004
    Publication date: June 28, 2007
    Applicant: NIPPON SHINYAKY CO., LTD.
    Inventors: Jun Akai, Hiroshi Nishida