Patents by Inventor Katsuhisa Kumagai

Katsuhisa Kumagai 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).

  • Method of reducing the styrene content of a poly(arylene ether)/polystyrene blend, and articles comprising the resulting thermoplastic resin
    Patent number: 7314909
    Abstract: A poly(arylene ether)/polystyrene blend may be prepared by melt kneading a carboxylic acid compound, a poly(arylene ether), and a polystyrene to form an intimate blend, and steam stripping the intimate blend, where melt kneading is conducted with a specific energy consumption of about 0.1 to about 0.3 kilowatt-hour per kilogram of blend. The method allows the formation of an intimate resin blend while minimizing the styrene monomer content of the final blend.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: January 1, 2008
    Assignee: General Electric Company
    Inventors: Geoffrey H. Riding, Katsuhisa Kumagai, Kim G. Balfour, Robert Hossan
  • Method of reducing the styrene content of a poly(arylene ether)/polystyrene blend, and articles comprising the resulting thermoplastic resin
    Publication number: 20070083035
    Abstract: A poly(arylene ether)/polystyrene blend may be prepared by melt kneading a carboxylic acid compound, a poly(arylene ether), and a polystyrene to form an intimate blend, and steam stripping the intimate blend, where melt kneading is conducted with a specific energy consumption of about 0.1 to about 0.3 kilowatt-hour per kilogram of blend. The method allows the formation of an intimate resin blend while minimizing the styrene monomer content of the final blend.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 12, 2007
    Inventors: Geoffrey Riding, Katsuhisa Kumagai, Kim Balfour, Robert Hossan
  • Bumper assembly including twin energy absorbers
    Patent number: 7086690
    Abstract: A bumper system for an automobile vehicle includes, in an exemplary embodiment, a first beam configured to attached to the vehicle and a first energy absorber coupled to the first beam. The first energy absorber is tunable for meeting predetermined criteria for both low speed and pedestrian impacts, and includes a plurality of tunable lobes. The lobes are tuned so that a stiffness of the first energy absorber varies from a center of the first energy absorber to each end.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 8, 2006
    Assignee: General Electric Company
    Inventors: Stephen F. Shuler, Alok Nanda, Takaaki Nemoto, Frank Mooijman, Katsuhisa Kumagai, A. D. Shaleena
  • Bumper assembly including twin energy absorbers
    Publication number: 20060043743
    Abstract: A bumper system for an automobile vehicle includes, in an exemplary embodiment, a first beam configured to attached to the vehicle and a first energy absorber coupled to the first beam. The first energy absorber is tunable for meeting predetermined criteria for both low speed and pedestrian impacts, and includes a plurality of tunable lobes. The lobes are tuned so that a stiffness of the first energy absorber varies from a center of the first energy absorber to each end.
    Type: Application
    Filed: August 24, 2004
    Publication date: March 2, 2006
    Inventors: Stephen Shuler, Alok Nanda, Takaaki Nemoto, Frank Mooijman, Katsuhisa Kumagai, A.D. Shaleena