Patents by Inventor Kouichi Sanpei

Kouichi Sanpei 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: 7536146
    Abstract: A flash fixing device comprises a first and second flash lamps that emit flashes of light that fix a toner image transferred onto a recording medium and a light emission control unit that controls the light emissions of the first and second flash lamps so that the light flashes emitted from the first flash lamp and the second flash lamp are each irradiated at different timing on each portion on the recording medium.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: May 19, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Iwaishi, Mitsuhiro Mori, Ryo Kitao, Teruki Kishimoto, Hiroshi Nou, Kouichi Sanpei
  • Patent number: 7430395
    Abstract: A flash fixing device is disclosed. The flash fixing device has a group of main flash lamps which emit main flash light for fixing a toner image on a recording medium; an auxiliary flash lamp provided at a position corresponding to between a pair of flash lamps of the group of main flash lamps; and a light-emission control unit controlling light-emission of the group of main flash lamps and light-emission of the auxiliary flash lamp by using a predetermined relationship. Also disclosed is an image forming device having the flash fixing device.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: September 30, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Iwaishi, Mitsuhiro Mori, Hiroshi Nou, Kouichi Sanpei, Kunihiko Sato
  • Publication number: 20080019745
    Abstract: A flash fixing device comprises a first and second flash lamps that emit flashes of light that fix a toner image transferred onto a recording medium and a light emission control unit that controls the light emissions of the first and second flash lamps so that the light flashes emitted from the first flash lamp and the second flash lamp are each irradiated at different timing on each portion on the recording medium.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Inventors: Akira Iwaishi, Mitsuhiro Mori, Ryo Kitao, Teruki Kishimoto, Hiroshi Nou, Kouichi Sanpei
  • Patent number: 7321747
    Abstract: A fixing device that applies heat energy to a recording medium having a toner image formed thereon to fix the toner image includes a flash fixing part that includes a flash lamp disposed in non-contact with the recording medium and applies heat energy to the toner image formed on the recording medium through discharge luminescence of a gas in the flash lamp, and an air stream spraying part that is disposed in non-contact with the recording medium on a downstream side of the flash fixing part in a transporting direction of the recording medium and sprays an air stream at a prescribed temperature onto a surface of the recording medium.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: January 22, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kouichi Sanpei, Hiroshi Nou, Akira Iwaishi, Mitsuhiro Mori
  • Publication number: 20070070351
    Abstract: An optical measuring device measures optical characteristics of an object in a non-contact state. The optical measuring device has a light source that illuminates an object surface, a light receiver that receives a light beam reflected from the object surface, and a light-regulating member that regulates an illuminating light beam radiated onto the object surface and the reflective light beam reflected from the object surface. The light-regulating member has a first light-regulating member that determines at least one of an illuminating region and a reflective region with respect to the object surface, and a second light-regulating member that determines a region where the reflected light beam that is reflected from the object surface and is incident on the light receiver is measured on the object surface.
    Type: Application
    Filed: February 3, 2006
    Publication date: March 29, 2007
    Inventors: Hiroshi Nou, Kouichi Sanpei
  • Publication number: 20070019024
    Abstract: An image forming apparatus includes a flash fixing section having at least one flash lamp, the flash fixing section fixing a toner image onto a recording medium by light energy being emitted from the flash lamp, a detecting section which detects the light energy emitted from the flash lamp, the detecting section being provided at a position facing the flash fixing section, and a determining section which determines a type of the recording medium based on a value of the light energy detected by the detecting section and a relationship between light energy values and types of a recording medium.
    Type: Application
    Filed: April 6, 2006
    Publication date: January 25, 2007
    Inventors: Kouichi Sanpei, Hiroshi Nou, Akira Iwaishi, Mitsuhiro Mori
  • Publication number: 20060291926
    Abstract: A flash fixing device is disclosed. The flash fixing device has a group of main flash lamps which emit main flash light for fixing a toner image on a recording medium; an auxiliary flash lamp provided at a position corresponding to between a pair of flash lamps of the group of main flash lamps; and a light-emission control unit controlling light-emission of the group of main flash lamps and light-emission of the auxiliary flash lamp by using a predetermined relationship. Also disclosed is an image forming device having the flash fixing device.
    Type: Application
    Filed: April 13, 2006
    Publication date: December 28, 2006
    Inventors: Akira Iwaishi, Mitsuhiro Mori, Hiroshi Nou, Kouichi Sanpei, Kunihiko Sato
  • Publication number: 20060216081
    Abstract: A fixing device that applies heat energy to a recording medium having a toner image formed thereon to fix the toner image includes a flash fixing part that includes a flash lamp disposed in non-contact with the recording medium and applies heat energy to the toner image formed on the recording medium through discharge luminescence of a gas in the flash lamp, and an air stream spraying part that is disposed in non-contact with the recording medium on a downstream side of the flash fixing part in a transporting direction of the recording medium and sprays an air stream at a prescribed temperature onto a surface of the recording medium.
    Type: Application
    Filed: September 7, 2005
    Publication date: September 28, 2006
    Inventors: Kouichi Sanpei, Hiroshi Nou, Akira Iwaishi, Mitsuhiro Mori
  • Patent number: 6660213
    Abstract: A nozzle plate to be mounted on an ink jet print head includes a plate body on which is formed a plurality of jet aperture portions from which ink is jetted and a water-repellant film formed on this plate body. The diameter of jet aperture portions formed on the plate body and the diameter of water-repellant film apertures formed on the water-repellant film so as to connect with the nozzle apertures are the same diameter R3, so the ink jet flow can be accurately controlled.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: December 9, 2003
    Assignee: Fujitsu Limited
    Inventors: Kouichi Sanpei, Masayuki Sasaki, Hiromitsu Soneda, Mutsuo Watanabe
  • Patent number: 6450623
    Abstract: The present invention has an object to provide an inkjet head and a method for manufacturing the inkjet head which not only protects a member at and/or near a surface onto which the nozzle plate is connected (nozzle connection surface), but also shortens the manufacturing time. A protective layer is provided between the nozzle plate and the piezo-electric element, enabling only the protective layer to be polished, protecting the piezo-electric element from being damaged by the polishing when the nozzle connection surface is formed. After the inkjet head is completed, the protective layer prevents ink leakage to the piezo-electric element.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 17, 2002
    Assignee: Fujitsu Limited
    Inventors: Mutsuo Watanabe, Masayuki Sasaki, Kouichi Sanpei, Mitsuhiro Soneda
  • Patent number: 6382780
    Abstract: The instant invention has an exemplified object to provide an inkjet head and recording device having such an inkjet head with a simpler structure as achieves higher quality of printing inexpensively than the conventional. The pressure-chamber plate of this invention is slit or divided into a plurality of elements.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: May 7, 2002
    Assignee: Fujitsu Limited
    Inventors: Mutsuo Watanabe, Masayuki Sasaki, Kouichi Sanpei, Hiromitsu Soneda, Akihiko Miyaki, Akira Iwaishi, Masahiro Ono, Takumi Kawamura, Tomoyuki Akahoshi
  • Patent number: 6328434
    Abstract: It is an exemplified object of the present invention to provide an inkjet head, its manufacturing method, and a recording device that can form a high-quality image while preventing an ink leakage. To accomplish the object, an indent is provided at a joint surface of a pressure chamber plate with an adhesive.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: December 11, 2001
    Assignee: Fujitsu Limited
    Inventors: Hiromitsu Soneda, Masayuki Sasaki, Kouichi Sanpei, Mutsuo Watanabe
  • Patent number: 6053601
    Abstract: The ink jet printer includes a pressure chamber plate having a plurality of pressure chambers 20 separated by bulkheads, and a piezoelectric member having drive sections arranged opposite to the pressure chambers via a vibrating plate. The drive sections are separated from each other by parallel extending grooves. The piezoelectric member has inner electrodes 32 embedded therein and exposed to the side surfaces of the drive sections. The exposed portions of the inner electrodes are covered by insulating members, so that no short circuit is caused between the inner electrodes provided in the piezoelectric member.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: April 25, 2000
    Assignee: Fujitsu Limited
    Inventors: Mutsuo Watanabe, Kouichi Sanpei, Hiromitsu Soneda