Patents by Inventor Tatsumi Komura

Tatsumi Komura 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: 8253997
    Abstract: A correction information creation device including: a recording head; a rotating body; a first detector that detects a period of a pulse signal generated in accordance with rotation of the rotating body; a first calculation section that calculates a period of a clock signal; a second detector that detects a space between corrective images that are formed synchronously with a period of the clock signal, while the rotating body is being rotated at a predetermined rotation speed, by two sets of image formation elements of the recording head; a second calculation section that calculates a distance between a measurement position of a peripheral surface of the rotating body and the axial center of the rotating body; and a memory that stores the calculated distance to serve as information for correcting the period of the clock signal.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: August 28, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toru Nishida, Susumu Kibayashi, Hiroaki Satoh, Takeshi Zengo, Tatsumi Komura
  • Patent number: 8215749
    Abstract: In a liquid droplet discharge apparatus that prevents deterioration in the precision of ink droplet landing positions resulting from deformation of long members due to changes in the temperature environment, long members to which plural head units are attached are fixed at one end but slidably supported at the other end. The long members no longer bend because the other ends of the long members slide.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 10, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tatsumi Komura
  • Patent number: 7702320
    Abstract: A portable information terminal having high adaptability and high convenience with respect to operating environment, and by which comfortable and high-quality sounds can be reproduced is provided. A sound reproducing system in a portable information terminal 1, wherein the portable information terminal is provided with at least two acoustic loudspeakers 2a and 2b; and the at least two acoustic loudspeakers are driven simultaneously to compensate their reproduced sounds with each other.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: April 20, 2010
    Assignee: NEC Corporation
    Inventor: Tatsumi Komura
  • Publication number: 20090290184
    Abstract: A correction information creation device including: a recording head; a rotating body; a first detector that detects a period of a pulse signal generated in accordance with rotation of the rotating body; a first calculation section that calculates a period of a clock signal; a second detector that detects a space between corrective images that are formed synchronously with a period of the clock signal, while the rotating body is being rotated at a predetermined rotation speed, by two sets of image formation elements of the recording head; a second calculation section that calculates a distance between a measurement position of a peripheral surface of the rotating body and the axial center of the rotating body; and a memory that stores the calculated distance to serve as information for correcting the period of the clock signal.
    Type: Application
    Filed: December 3, 2008
    Publication date: November 26, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Toru Nishida, Susumu Kibayashi, Hiroaki Satoh, Takeshi Zengo, Tatsumi Komura
  • Patent number: 7539551
    Abstract: A sound reproducing system including at least one portable terminal unit which acquires data including sound data. For example, the data may be multimedia data and is acquired from data delivery service and the like. Each of the at least one portable terminal unit comprises: a loudspeaker for reproducing sound from the sound data; and a sound data reproducing portion which makes the loudspeaker reproduce the sound based on the sound data and in cooperation with at least one sound devices. The sound devices may be other portable terminal units. By using a plurality of portable terminal units, it becomes possible to reproduce stereophonic sound, surround sound, and the like. It is also possible to reproduce image together with such sound.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 26, 2009
    Assignee: NEC Corporation
    Inventors: Tatsumi Komura, Nobuaki Takanashi
  • Publication number: 20080211867
    Abstract: In a liquid droplet discharge apparatus that prevents deterioration in the precision of ink droplet landing positions resulting from deformation of long members due to changes in the temperature environment, long members to which plural head units are attached are fixed at one end but slidably supported at the other end. The long members no longer bend because the other ends of the long members slide.
    Type: Application
    Filed: February 8, 2008
    Publication date: September 4, 2008
    Inventor: Tatsumi Komura
  • Publication number: 20060209124
    Abstract: In a liquid droplet discharge apparatus that prevents deterioration in the precision of ink droplet landing positions resulting from deformation of long members due to changes in the temperature environment, long members to which plural head units are attached are fixed at one end but slidably supported at the other end. The long members no longer bend because the other ends of the long members slide.
    Type: Application
    Filed: September 14, 2005
    Publication date: September 21, 2006
    Inventor: Tatsumi Komura
  • Publication number: 20040023697
    Abstract: A portable information terminal having high adaptability and high convenience with respect to operating environment, and by which comfortable and high-quality sounds can be reproduced is provided.
    Type: Application
    Filed: July 25, 2003
    Publication date: February 5, 2004
    Inventor: Tatsumi Komura
  • Patent number: 6554098
    Abstract: A panel speaker includes an acoustic vibrating plate, and a vibration driver mounted off a center of the acoustic vibrating plate and applying vibration to the acoustic vibrating plate. A control unit may be provided to control the vibration driver to apply vibration to the acoustic vibrating plate.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 29, 2003
    Assignee: NEC Corporation
    Inventor: Tatsumi Komura
  • Publication number: 20030023331
    Abstract: A sound reproducing system including at least one portable terminal unit which acquires data including sound data. For example, the data may be multimedia data and is acquired from data delivery service and the like. Each of the at least one portable terminal unit comprises: a loudspeaker for reproducing sound from the sound data; and a sound data reproducing portion which makes the loudspeaker reproduce the sound based on the sound data and in cooperation with at least one sound devices. The sound devices may be other portable terminal units. By using a plurality of portable terminal units, it becomes possible to reproduce stereophonic sound, surround sound, and the like. It is also possible to reproduce image together with such sound.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: NEC Corporation
    Inventors: Tatsumi Komura, Nobuaki Takanashi