Patents by Inventor Yoshihira Rai

Yoshihira Rai 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: 10880448
    Abstract: An image reading device includes a reading unit that reads an image formed on a first surface of a medium; a support unit that supports the medium from a second surface opposite to the first surface; and a pressing unit that blows air from a first surface side so as to press a portion of the medium to be read by the reading unit against the support unit.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: December 29, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Katsuhiko Nakaie, Yoshihira Rai
  • Publication number: 20200304669
    Abstract: An image reading device includes a reading unit that reads an image formed on a first surface of a medium; a support unit that supports the medium from a second surface opposite to the first surface; and a pressing unit that blows air from a first surface side so as to press a portion of the medium to be read by the reading unit against the support unit.
    Type: Application
    Filed: July 15, 2019
    Publication date: September 24, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Katsuhiko Nakaie, Yoshihira Rai
  • Patent number: 9597904
    Abstract: A droplets ejecting apparatus includes: an ejection head that ejects droplets to a predetermined ejection direction toward a recording medium being fed in a predetermined feeding direction; a support unit that supports the ejection head; moving members that are provided for a first-side portion and a second-side portion between which an ejection region of the ejection head is interposed in the feeding direction in a view as viewed in the ejection direction, and that move the first-side portion and the second-side portion in a crossing direction that is perpendicular to the ejection direction and the feeding direction; and a control unit as defined herein.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 21, 2017
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshihira Rai
  • Publication number: 20160279982
    Abstract: A droplets ejecting apparatus includes: an ejection head that ejects droplets to a predetermined ejection direction toward a recording medium being fed in a predetermined feeding direction; a support unit that supports the ejection head; moving members that are provided for a first-side portion and a second-side portion between which an ejection region of the ejection head is interposed in the feeding direction in a view as viewed in the ejection direction, and that move the first-side portion and the second-side portion in a crossing direction that is perpendicular to the ejection direction and the feeding direction; and a control unit as defined herein.
    Type: Application
    Filed: July 2, 2015
    Publication date: September 29, 2016
    Inventor: Yoshihira Rai
  • Patent number: 9120323
    Abstract: The present invention provides a liquid droplet ejecting apparatus that may cool, with a simple configuration, drive sections of piezoelectric elements. Namely, the liquid droplet ejecting apparatus has head modules that use piezoelectric elements to eject ink droplets, driver ICs that drive the piezoelectric elements, a ventilation unit that delivers dry air to the environs of the piezoelectric elements via a gas delivery passage disposed therein in order to dehumidify the environs of the piezoelectric elements, a branch tube that branches from the gas delivery passage and blows onto the driver ICs some of the air that has been delivered, and a duckbill valve that is disposed in the branch tube. Here, the ventilation unit that delivers the dry air in order to dehumidify the environs of the piezoelectric elements also cools the driver ICs, so the driver ICs can be cooled with a simple configuration.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 1, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kumiko Tanaka, Masaki Kataoka, Yoshihira Rai, Hiroshi Shibata
  • Publication number: 20150165784
    Abstract: The present invention provides a liquid droplet ejecting apparatus that may cool, with a simple configuration, drive sections of piezoelectric elements. Namely, the liquid droplet ejecting apparatus has head modules that use piezoelectric elements to eject ink droplets, driver ICs that drive the piezoelectric elements, a ventilation unit that delivers dry air to the environs of the piezoelectric elements via a gas delivery passage disposed therein in order to dehumidify the environs of the piezoelectric elements, a branch tube that branches from the gas delivery passage and blows onto the driver ICs some of the air that has been delivered, and a duckbill valve that is disposed in the branch tube. Here, the ventilation unit that delivers the dry air in order to dehumidify the environs of the piezoelectric elements also cools the driver ICs, so the driver ICs can be cooled with a simple configuration.
    Type: Application
    Filed: February 20, 2015
    Publication date: June 18, 2015
    Inventors: Kumiko TANAKA, Masaki KATAOKA, Yoshihira RAI, Hiroshi SHIBATA
  • Patent number: 8801151
    Abstract: A liquid ejection apparatus includes: a gas chamber surrounding a piezoelectric element in an inkjet head; and a dry gas supply device configured to start supply of dry gas to the gas chamber before supply of electric power to the inkjet head is started, to continue the supply of the dry gas while the supply of the electric power to the inkjet head is continued, and to halt the supply of the dry gas after the supply of the electric power to the inkjet head is halted. While the dry gas supply device halts the supply of the dry gas to the gas chamber, a dry gas supply flow channel opening and closing device is closed to disconnect the dry gas supply device and the gas chamber, and a gas return flow channel opening and closing device is closed to disconnect the gas chamber and the external air.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: August 12, 2014
    Assignees: FUJIFILM Corporation, Fuji Xerox Co., Ltd.
    Inventors: Hiroshi Shibata, Akira Wakabayashi, Masaki Kataoka, Yoshihira Rai, Kousuke Yunoki
  • Patent number: 8118394
    Abstract: A droplet ejecting device including: plural droplet ejecting heads that eject droplets; a transporting body, disposed to face nozzle surfaces of the droplet ejecting heads, that transports a recording medium; and a head holding member that holds the droplet ejecting heads movably along droplet ejecting directions respectively is provided.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: February 21, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tadashi Suzuki, Masaki Kataoka, Atsumichi Imazeki, Yoshihira Rai, Yujiro Fukuda, Takaaki Sekiyama
  • Patent number: 7866780
    Abstract: A liquid droplet ejecting apparatus, comprising: a plurality of liquid droplet ejecting heads arranged in parallel to each other, and the liquid droplet ejecting heads having the same liquid droplet ejectable width, and at least one of the liquid droplet ejecting heads being shifted in a widthwise direction of the liquid droplet ejectable width with respect to other liquid droplet ejecting heads, the liquid droplet ejecting apparatus having the following relationship: an image quality assured width<the liquid droplet ejectable width<a liquid droplet ejectable width of the apparatus using all of the plurality of liquid droplet ejecting heads, is provided.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: January 11, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshihira Rai
  • Publication number: 20090284566
    Abstract: A droplet ejecting device including: plural droplet ejecting heads that eject droplets; a transporting body, disposed to face nozzle surfaces of the droplet ejecting heads, that transports a recording medium; and a head holding member that holds the droplet ejecting heads movably along droplet ejecting directions respectively is provided.
    Type: Application
    Filed: December 29, 2008
    Publication date: November 19, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tadashi SUZUKI, Masaki KATAOKA, Atsumichi IMAZEKI, Yoshihira RAI, Yujiro FUKUDA, Takaaki SEKIYAMA
  • Publication number: 20090160905
    Abstract: A liquid droplet ejecting apparatus, comprising: a plurality of liquid droplet ejecting heads arranged in parallel to each other, and the liquid droplet ejecting heads having the same liquid droplet ejectable width, and at least one of the liquid droplet ejecting heads being shifted in a widthwise direction of the liquid droplet ejectable width with respect to other liquid droplet ejecting heads, the liquid droplet ejecting apparatus having the following relationship: an image quality assured width<the liquid droplet ejectable width<a liquid droplet ejectable width of the apparatus using all of the plurality of liquid droplet ejecting heads, is provided.
    Type: Application
    Filed: May 27, 2008
    Publication date: June 25, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Yoshihira Rai
  • Patent number: 7448727
    Abstract: The invention provides an ink jet recording head in which an element substrate provided in a head unit and constituted of plural drive elements is driven to discharge ink droplets from plural nozzles. In the ink jet recording head, the head unit has a substantially parallelogram shape, and plural head units are connected in a row to form a head bar.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: November 11, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshihira Rai, Shinji Seto
  • Patent number: 7246874
    Abstract: The present invention provides a maintenance device which can suction ink in a short period of time and with a small amount of consumed ink. The maintenance device has a plurality of capping portions disposed so as to face a plurality of unit heads which can discharge liquid drops onto a recording medium; a plurality of small chambers communicating with the plurality of capping portions, respectively; a suction portion suctioning interiors of the small chambers; and a plurality of valve mechanisms independently controlling airtight states of the interiors of the small chambers. The present invention also provides a recording device equipped with this maintenance device.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: July 24, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Susumu Hirakata, Yoshihira Rai, Nobuhiro Katsuta, Hiroaki Satoh
  • Patent number: 7114793
    Abstract: A recording apparatus contains a recording head having a liquid droplet ejecting surface and ejecting a liquid droplet to a recording medium, a maintenance device disposed at a position opposite to the liquid droplet ejecting surface of the recording head, and a conveying unit which conveys the recording medium between the recording head and the maintenance device. The maintenance device has a liquid housing unit which houses the liquid droplet from the recording head, and a cleaning unit which cleans the liquid droplet ejecting surface of the recording head.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: October 3, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Nobuhiro Katsuta, Hiroaki Satoh, Yoshihira Rai, Akira Mihara, Kenichi Kawauchi, Naoki Morita, Hiroshi Ikeda
  • Publication number: 20060201870
    Abstract: A filter apparatus which features an inflow path, a first liquid chamber, a second liquid chamber, an outflow path and a filter. Liquid flows in at the inflow path. The first liquid chamber communicates with the inflow path. The second liquid chamber is disposed at an inner side of the first liquid chamber and communicates with the first liquid chamber. The outflow path communicates with the second liquid chamber and the liquid flows out at the outflow path. The filter is disposed between the first liquid chamber and the second liquid chamber.
    Type: Application
    Filed: August 15, 2005
    Publication date: September 14, 2006
    Inventors: Shinji Seto, Tomohiro Wada, Yoshihira Rai
  • Patent number: 7090419
    Abstract: A recording device for recording an image on a recording medium, the recording device comprising: a recording head having a liquid drop discharging surface for discharging liquid drops toward a recording medium; a liquid receptacle disposed at a position opposing a liquid drop discharging surface of the recording head, and able to accommodate the liquid drops; and a conveying device for conveying the recording medium between the recording head and the liquid receptacle, by a non-electrostatic attraction method.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: August 15, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Satoh, Nobuhiro Katsuta, Yoshihira Rai, Akira Mihara, Kenichi Kawauchi, Hiroshi Ikeda, Naoki Morita
  • Publication number: 20060066678
    Abstract: The invention provides an ink jet recording head in which an element substrate provided in a head unit and constituted of plural drive elements is driven to discharge ink droplets from plural nozzles. In the ink jet recording head, the head unit has a substantially parallelogram shape, and plural head units are connected in a row to form a head bar.
    Type: Application
    Filed: February 2, 2005
    Publication date: March 30, 2006
    Inventors: Yoshihira Rai, Shinji Seto
  • Patent number: 6926385
    Abstract: A recording apparatus enabling printing with high image quality is to be provided. In a recording apparatus exerting recordation having a non-scanning recording head corresponding to the total width of the paper, a pressing member and a supporting member are disposed among plural recording head units, which are arranged in the width direction of the paper with a prescribed interval, and thus the paper continuously conveyed is pressed with the pressing member onto the supporting member, so as to uniformize the distance between the paper and the nozzle surface at the printing position. As a result, printing can be attained with high image quality on the paper continuously conveyed.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 9, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshihira Rai, Hiroaki Satoh, Nobuhiro Katsuta, Kenichi Kawauchi, Akira Mihara, Hiroshi Ikeda, Naoki Morita
  • Publication number: 20050057603
    Abstract: The present invention provides a maintenance device which can suction ink in a short period of time and with a small amount of consumed ink. The maintenance device has a plurality of capping portions disposed so as to face a plurality of unit heads which can discharge liquid drops onto a recording medium; a plurality of small chambers communicating with the plurality of capping portions, respectively; a suction portion suctioning interiors of the small chambers; and a plurality of valve mechanisms independently controlling airtight states of the interiors of the small chambers. The present invention also provides a recording device equipped with this maintenance device.
    Type: Application
    Filed: July 16, 2004
    Publication date: March 17, 2005
    Inventors: Susumu Hirakata, Yoshihira Rai, Nobuhiro Katsuta, Hiroaki Satoh
  • Patent number: D610607
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: February 23, 2010
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiko Kachi, Norihisa Takada, Yoshihira Rai, Atsumichi Imazeki, Masaki Kataoka, Tadashi Suzuki, Takaaki Sekiyama