Patents by Inventor Kouji Miyabara

Kouji Miyabara 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).

  • Coating material composition having photocatalytic activity
    Patent number: 7297206
    Abstract: Disclosed herein is a photocatalytic coating composition that enables control of refractive index, film density and hydrophilicity and gives a film with improved strength and adhesion. The photocatalytic coating composition comprises: (1) an alkali silicate aqueous solution having: (A) a molar ratio of silicon to an alkali (SiO2/(A2O+B) (A: alkali metal, B: NH3)) in the range of 4 to 30; and (B) a silicon concentration in terms of oxide (SiO2 concentration) in the range of 6.8 to 30% by weight; and (2) a photocatalytic compound.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 20, 2007
    Assignee: Tososangyo Co., Ltd.
    Inventors: Tohru Naruse, Kouji Miyabara
  • Aqueous active alkali silicate solution having high molar ratio, method for production thereof and method for use thereof
    Patent number: 7285163
    Abstract: An alkali silicate aqueous solution having intermediate characteristics between water glass and colloidal silica and having a high molar ratio (SiO2/(A2O+B))(A: alkali metal, B: NH3), a high silicon content and a high anionic activity. The alkali silicate aqueous solution has the properties: (A) the molar ratio of silicon to an alkali (SiO2/(A2O+B) is in the range of 4 to 30, and (B) the silicon concentration in terms of an oxide (SiO2 concentration) is in the range of 6.8 to 30% by weight. A process for preparing an alkali silicate aqueous solution comprises dealkalizing a starting alkali silicate aqueous solution by means of an electro-dialysis device, and then optionally concentrating the dealkalized solution by a reverse osmosis membrane method.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: October 23, 2007
    Assignee: Tososangyo Co., Ltd.
    Inventor: Kouji Miyabara
  • Coating material composition having photocatalytic activity
    Publication number: 20040116577
    Abstract: Disclosed herein is a photocatalytic coating composition that enables control of refractive index, film density and hydrophilicity and gives a film with improved strength and adhesion.
    Type: Application
    Filed: October 16, 2003
    Publication date: June 17, 2004
    Inventors: Tohru Naruse, Kouji Miyabara
  • Aqueous active alkali silicate solution having high molar ratio, method for production thereof and method for use thereof
    Publication number: 20040089550
    Abstract: It is an object of the present invention to provide an alkali silicate aqueous solution having intermediate characteristics between water glass and colloidal silica and having a high molar ratio (SiO2/(A2O+B) )(A: alkali metal, B: NH3), a high silicon content and a high anionic activity. The alkali silicate aqueous solution according to the invention has the properties: (A) the molar ratio of silicon to an alkali (SiO2/ (A2O+B) is in the range of 4 to 30, and (B) the silicon concentration in terms of an oxide (SiO2 concentration) is in the range of 6.8 to 30 % by weight. The process for preparing an alkali silicate aqueous solution according to the invention comprises dealkalizing a starting alkali silicate aqueous solution by means of an electro-dialysis device, and then optionally concentrating the dealkalized solution by a reverse osmosis membrane method.
    Type: Application
    Filed: September 19, 2003
    Publication date: May 13, 2004
    Inventor: Kouji Miyabara