Patents by Inventor Hirobumi Nagumo

Hirobumi Nagumo 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).

  • Patent number: 8016433
    Abstract: A projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: September 13, 2011
    Assignee: Sony Corporation
    Inventors: Toshiyuki Shirasu, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Patent number: 7993015
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information on the lamp and a check sum in predetermined order, the projector including: a control circuit for performing a clocking operation of a lamp timer for managing a use time of the lamp loaded in the projector; and a memory for storing information.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: August 9, 2011
    Assignee: Sony Corporation
    Inventors: Toshiyuki Shirasu, Hirobumi Nagumo
  • Patent number: 7950807
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order. The projector includes: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 31, 2011
    Assignee: Sony Corporation
    Inventors: Toshiyuki Shirasu, Hirobumi Nagumo
  • Patent number: 7901087
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: March 8, 2011
    Assignee: Sony Corporation
    Inventors: Toshiyuki Shirasu, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Patent number: 7896505
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: March 1, 2011
    Assignee: Sony Corporation
    Inventors: Toshiyuki Shirasu, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Publication number: 20100328629
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: Sony Corporation
    Inventors: Toshiyuki Shirasu, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Publication number: 20100328630
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: Sony Corporation
    Inventors: Toshiyuki SHIRASU, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Publication number: 20080297736
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Application
    Filed: February 22, 2008
    Publication date: December 4, 2008
    Applicant: Sony Corporation
    Inventors: Toshiyuki SHIRASU, Daizo Oka, Hirobumi Nagumo, Tessho Ishida
  • Publication number: 20080291404
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information on the lamp and a check sum in predetermined order, the projector including: a control circuit for performing a clocking operation of a lamp timer for managing a use time of the lamp loaded in the projector; and a memory for storing information.
    Type: Application
    Filed: February 26, 2008
    Publication date: November 27, 2008
    Applicant: Sony Corporation
    Inventors: Toshiyuki SHIRASU, Hirobumi Nagumo
  • Publication number: 20080218701
    Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order. The projector includes: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.
    Type: Application
    Filed: February 26, 2008
    Publication date: September 11, 2008
    Applicant: Sony Corporation
    Inventors: Toshiyuki SHIRASU, Hirobumi Nagumo
  • Patent number: 6318861
    Abstract: In a film positioning system and method thereof, stable film positioning is accomplished. In the present invention, when a film is fed to a stop position by driving first feeding mechanism and second feeding mechanism synchronizing with each other and then the stop position is determined with the first feeding mechanism or the second feeding mechanism, a fixed tension is applied to the film by the other feeding mechanism.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: November 20, 2001
    Assignee: Sony Corporation
    Inventor: Hirobumi Nagumo
  • Patent number: 5093752
    Abstract: In a tape loading device in which a tape is drawn from a mounted tape cassette and loaded on a tape path which lies in front of the mounted tape cassette, a big capstan which is arranged in front of the mounted tape cassette is inserted into a space formed between the mounted tape cassette and a portion of the tape which has been loaded on the tape path, from a position where the big capstan does not interfere with the tape which is moved to the tape path, so that it is possible to make the diameter and length of the capstan large.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: March 3, 1992
    Assignee: Sony Corporation
    Inventors: Tsuguo Sato, Hirobumi Nagumo, Takashi Shimodaira, Etsuro Saito