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).
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Patent number: 10880448Abstract: 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: GrantFiled: July 15, 2019Date of Patent: December 29, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Katsuhiko Nakaie, Yoshihira Rai
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Publication number: 20200304669Abstract: 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: ApplicationFiled: July 15, 2019Publication date: September 24, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Katsuhiko Nakaie, Yoshihira Rai
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Patent number: 9597904Abstract: 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: GrantFiled: July 2, 2015Date of Patent: March 21, 2017Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshihira Rai
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Publication number: 20160279982Abstract: 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: ApplicationFiled: July 2, 2015Publication date: September 29, 2016Inventor: Yoshihira Rai
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Patent number: 9120323Abstract: 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: GrantFiled: February 20, 2015Date of Patent: September 1, 2015Assignee: FUJIFILM CorporationInventors: Kumiko Tanaka, Masaki Kataoka, Yoshihira Rai, Hiroshi Shibata
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Publication number: 20150165784Abstract: 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: ApplicationFiled: February 20, 2015Publication date: June 18, 2015Inventors: Kumiko TANAKA, Masaki KATAOKA, Yoshihira RAI, Hiroshi SHIBATA
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Patent number: 8801151Abstract: 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: GrantFiled: November 14, 2012Date of Patent: August 12, 2014Assignees: FUJIFILM Corporation, Fuji Xerox Co., Ltd.Inventors: Hiroshi Shibata, Akira Wakabayashi, Masaki Kataoka, Yoshihira Rai, Kousuke Yunoki
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Patent number: 8118394Abstract: 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: GrantFiled: December 29, 2008Date of Patent: February 21, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Tadashi Suzuki, Masaki Kataoka, Atsumichi Imazeki, Yoshihira Rai, Yujiro Fukuda, Takaaki Sekiyama
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Patent number: 7866780Abstract: 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: GrantFiled: May 27, 2008Date of Patent: January 11, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Yoshihira Rai
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Publication number: 20090284566Abstract: 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: ApplicationFiled: December 29, 2008Publication date: November 19, 2009Applicant: FUJI XEROX CO., LTD.Inventors: Tadashi SUZUKI, Masaki KATAOKA, Atsumichi IMAZEKI, Yoshihira RAI, Yujiro FUKUDA, Takaaki SEKIYAMA
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Publication number: 20090160905Abstract: 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: ApplicationFiled: May 27, 2008Publication date: June 25, 2009Applicant: FUJI XEROX CO., LTD.Inventor: Yoshihira Rai
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Patent number: 7448727Abstract: 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: GrantFiled: February 2, 2005Date of Patent: November 11, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihira Rai, Shinji Seto
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Patent number: 7246874Abstract: 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: GrantFiled: July 16, 2004Date of Patent: July 24, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Susumu Hirakata, Yoshihira Rai, Nobuhiro Katsuta, Hiroaki Satoh
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Patent number: 7114793Abstract: 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: GrantFiled: February 17, 2004Date of Patent: October 3, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Nobuhiro Katsuta, Hiroaki Satoh, Yoshihira Rai, Akira Mihara, Kenichi Kawauchi, Naoki Morita, Hiroshi Ikeda
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Publication number: 20060201870Abstract: 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: ApplicationFiled: August 15, 2005Publication date: September 14, 2006Inventors: Shinji Seto, Tomohiro Wada, Yoshihira Rai
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Patent number: 7090419Abstract: 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: GrantFiled: February 17, 2004Date of Patent: August 15, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroaki Satoh, Nobuhiro Katsuta, Yoshihira Rai, Akira Mihara, Kenichi Kawauchi, Hiroshi Ikeda, Naoki Morita
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Publication number: 20060066678Abstract: 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: ApplicationFiled: February 2, 2005Publication date: March 30, 2006Inventors: Yoshihira Rai, Shinji Seto
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Patent number: 6926385Abstract: 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: GrantFiled: September 15, 2003Date of Patent: August 9, 2005Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihira Rai, Hiroaki Satoh, Nobuhiro Katsuta, Kenichi Kawauchi, Akira Mihara, Hiroshi Ikeda, Naoki Morita
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Publication number: 20050057603Abstract: 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: ApplicationFiled: July 16, 2004Publication date: March 17, 2005Inventors: Susumu Hirakata, Yoshihira Rai, Nobuhiro Katsuta, Hiroaki Satoh
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Patent number: D610607Type: GrantFiled: November 18, 2008Date of Patent: February 23, 2010Assignee: Fujifilm CorporationInventors: Yasuhiko Kachi, Norihisa Takada, Yoshihira Rai, Atsumichi Imazeki, Masaki Kataoka, Tadashi Suzuki, Takaaki Sekiyama