Patents by Inventor Yuichi Honma

Yuichi Honma 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).

  • Additive for heating asphalt
    Publication number: 20050066855
    Abstract: The invention provides an additive for heated asphalt that can further improve a peeling prevention effect between asphalt and aggregates. The invention relates to an additive which is added to heated asphalt containing a particular gallic acid ester and so on.
    Type: Application
    Filed: January 15, 2003
    Publication date: March 31, 2005
    Inventors: Yuichi Honma, Ryoichi Tamaki, Takashi Mukai
  • Asphalt emulsion composition
    Patent number: 6840991
    Abstract: Provided is, particularly, a cationic asphalt emulsion composition which is scarcely affected by temperature during paving and by the characteristics of the aggregates to be used, can secure a sufficient time required to mix aggregates and enables slurry fluidity suitable for paving. The asphalt emulsion composition contains asphalt and water, the composition comprising kraft lignin (A) having a molecular weight of 4000 to 60000 and a specific polyamine (B) in each specific ratio to the asphalt emulsion composition.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: January 11, 2005
    Assignee: Kao Corporation
    Inventors: Yuichi Honma, Ryoichi Tamaki, Hirotaka Sasaki
  • Stabilizer for asphalt emulsion
    Patent number: 6786961
    Abstract: The present invention provides a stabilizer for asphalt emulsion by which asphalt emulsion having a good chemical stability and being excellent in stationary stability and storage stability can be obtained. A polyoxyethylene adduct compound having a terminal group A selected from a C8-22 alkyl group etc., a terminal group B selected from C1-4 alkyl group etc., and 130 to 500 oxyethylene groups on the average for bonding the terminal groups A and B is used as a stabilizer for asphalt emulsion.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: September 7, 2004
    Assignee: Kao Corporation
    Inventors: Yuichi Honma, Ryoichi Tamaki, Hirotaka Sasaki
  • Stabilizer for asphalt emulsion
    Publication number: 20030149139
    Abstract: The present invention provides a stabilizer for asphalt emulsion by which asphalt emulsion having a good chemical stability and being excellent in stationary stability and storage stability can be obtained. A polyoxyethylene adduct compound having a terminal group A selected from a C8-22 alkyl group etc., a terminal group B selected from C1-4 alkyl group etc., and 130 to 500 oxyethylene groups on the average for bonding the terminal groups A and B is used as a stabilizer for asphalt emulsion.
    Type: Application
    Filed: November 13, 2002
    Publication date: August 7, 2003
    Inventors: Yuichi Honma, Ryoichi Tamaki, Hirotaka Sasaki
  • Asphalt emulsion composition
    Publication number: 20020144628
    Abstract: provided is, particularly, a cationic asphalt emulsion composition which is scarcely affected by temperature during paving and by the characteristics of the aggregates to be used, can secure a sufficient time required to mix aggregates and enables slurry fluidity suitable for paving. The asphalt emulsion composition contains asphalt and water, the composition comprising kraft lignin (A) having a molecular weight of 4000 to 60000 and a specific polyamine (B) in each specific ratio to the asphalt emulsion composition.
    Type: Application
    Filed: January 10, 2002
    Publication date: October 10, 2002
    Inventors: Yuichi Honma, Ryoichi Tamaki, Hirotaka Sasaki