Patents by Inventor Takuo Yamamoto

Takuo Yamamoto 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).

  • Polypeptide having ?-isomaltosyl-transferase activity
    Patent number: 7098013
    Abstract: The object of the present invention is to provide a polypeptide which can be used to produce a saccharide having a structure of cyclo{?6)-?-D-glucopyranosyl-(1?3)-?-D-glucopyranosyl-(1?6)-?-D-glucopyranosyl-(1?3)-?-D-glucopyranosyl-(1?}, a DNA encoding the polypeptide, and uses thereof.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: August 29, 2006
    Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Michio Kubota, Kazuhiko Maruta, Takuo Yamamoto, Shigeharu Fukuda
  • Polypeptide having alpha-isomaltosylglucosaccharide synthase activity
    Publication number: 20040161835
    Abstract: The object of the present invention is to provide a polypeptide which can be used to produce a saccharide having the structure of cyclo{→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→}, a DNA encoding the polypeptide, and uses thereof.
    Type: Application
    Filed: July 11, 2003
    Publication date: August 19, 2004
    Inventors: Michio Kubota, Kazuhiko Maruta, Takuo Yamamoto, Shigeharu Fukuda
  • Polypeptide having alpha-isomaltosyl-transferase activity
    Publication number: 20040121431
    Abstract: The object of the present invention is to provide a polypeptide which can be used to produce a saccharide having a structure of cyclo{→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→}, a DNA encoding the polypeptide, and uses thereof.
    Type: Application
    Filed: July 15, 2002
    Publication date: June 24, 2004
    Inventors: Michio Kubota, Kazuhiko Maruta, Takuo Yamamoto, Shigeru Fukuda
  • Hearing aid
    Patent number: 4739511
    Abstract: A hearing aid having a comparator or comparators which compare speech sound signals obtained by a first transducer with reference voltage(s) as slice level(s) formed from a standard voltage and which output time series square wave containing frequency information according to the relations of amplitude between the speech sound signals and the slice level(s).The time series square wave is output as mechanical vibrations, which is easy to adjust the level for hearing impaired persons having a narrow dynamic range.Comparators may be provided for both positive and negative sides and may be divided into plural numbers in order to raise the identification score and information content.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: April 19, 1988
    Assignee: Rion Kabushiki Kaisha
    Inventors: Kiyoharu Hori, Takuo Yamamoto, Tetsuyoshi Hara
  • Hearing aid
    Patent number: 4475230
    Abstract: In a hearing aid, when the input sound pressure to the microphone exceeds a preset level for a preset period of time, a control signal is produced to automatically decrease the maximum output sound level, thereby decreasing the overload to the user.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: October 2, 1984
    Assignee: Rion Kabushiki Kaisha
    Inventors: Kunihiko Fukuyama, Takuo Yamamoto, Hiromi Masaike
  • Thermal bottle
    Patent number: D474376
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: May 13, 2003
    Assignee: Nippon Sanso Corporation
    Inventors: Nobuyuki Kitamura, Takuo Yamamoto