Patents by Inventor Atsumichi Imazeki

Atsumichi Imazeki 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: 9975344
    Abstract: Provided is a wiping device including: an impregnated member that is impregnated with a liquid, has a contact surface having lengths which are longer than that of a nozzle-formed surface in a longitudinal direction and in a transverse direction intersecting with the longitudinal direction of the nozzle-formed surface of an ejecting head that ejects an ejection liquid, and causes the contact surface to come into contact with the nozzle-formed surface such that the nozzle-formed surface is wetted; and a wiping member that wipes the nozzle-formed surface wetted by the impregnated member.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 22, 2018
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masashi Hiratsuka, Atsumichi Imazeki, Yuichi Inoue, Masaki Kataoka
  • Publication number: 20180079217
    Abstract: Provided is a wiping device including: an impregnated member that is impregnated with a liquid, has a contact surface having lengths which are longer than that of a nozzle-formed surface in a longitudinal direction and in a transverse direction intersecting with the longitudinal direction of the nozzle-formed surface of an ejecting head that ejects an ejection liquid, and causes the contact surface to come into contact with the nozzle-formed surface such that the nozzle-formed surface is wetted; and a wiping member that wipes the nozzle-formed surface wetted by the impregnated member.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 22, 2018
    Inventors: Masashi Hiratsuka, Atsumichi Imazeki, Yuichi Inoue, Masaki Kataoka
  • Publication number: 20150258784
    Abstract: Provided is a liquid droplet ejection head provided with an ejection hole that is opened on an ejection surface and ejects a liquid droplet, and a groove that extends with one end separated from the ejection hole to the other end further separated from the ejection hole than the one end on the ejection surface.
    Type: Application
    Filed: February 20, 2015
    Publication date: September 17, 2015
    Inventors: Kumiko TANAKA, Atsumichi IMAZEKI
  • Patent number: 8176630
    Abstract: A liquid droplet ejection head includes: a nozzle plate that has a plurality of nozzles ejecting a liquid droplet; a flow path member that includes: pressure generating chambers that communicate with the nozzles; and liquid supply paths through which liquid is supplied to the pressure generating chambers; and a damper portion that is disposed in at least one part of a region, the region being on the nozzle plate, corresponding to the liquid supply paths, the damper portion reducing a fluctuation of an ejection amount of the liquid droplets to enable stable ejection.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 15, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
  • 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
  • Publication number: 20100252528
    Abstract: A liquid droplet ejection head includes: a nozzle plate that has a plurality of nozzles ejecting a liquid droplet; a flow path member that includes: pressure generating chambers that communicate with the nozzles; and liquid supply paths through which liquid is supplied to the pressure generating chambers; and a damper portion that is disposed in at least one part of a region, the region being on the nozzle plate, corresponding to the liquid supply paths, the damper portion reducing a fluctuation of an ejection amount of the liquid droplets to enable stable ejection.
    Type: Application
    Filed: June 15, 2010
    Publication date: October 7, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
  • Patent number: 7798628
    Abstract: A liquid droplet ejection head includes: a nozzle plate that has a plurality of nozzles ejecting a liquid droplet; a flow path member that includes: pressure generating chambers that communicate with the nozzles; and liquid supply paths through which liquid is supplied to the pressure generating chambers; and a damper portion that is disposed in at least one part of a region, the region being on the nozzle plate, corresponding to the liquid supply paths, the damper portion reducing a fluctuation of an ejection amount of the liquid droplets to enable stable ejection.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: September 21, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
  • 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: 20080049085
    Abstract: A liquid droplet ejection head includes: a nozzle plate that has a plurality of nozzles ejecting a liquid droplet; a flow path member that includes pressure generating chambers that communicate with the nozzles; and liquid supply paths through which liquid is supplied to the pressure generating chambers; and a damper portion that is disposed in at least one part of a region, the region being on the nozzle plate, corresponding to the liquid supply paths, the damper portion reducing a fluctuation of an ejection amount of the liquid droplets to enable stable ejection.
    Type: Application
    Filed: February 7, 2007
    Publication date: February 28, 2008
    Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
  • Publication number: 20060170727
    Abstract: An inkjet recording device of the present invention includes an inkjet recording head, a first wiper, a first movement component and a control component. The inkjet recording head ejects ink droplets from a plurality of nozzles formed in a nozzle face. The first wiper abuts against the nozzle face and wipes the nozzle face. The first movement component relatively moves the first wiper, with respect to the nozzle face, along the nozzle face. The control component controls ejection of ink droplets from the nozzles and controls the first movement component. The control component moves the first wiper relative to the nozzle face while the control component causes ink droplets to be ejected from the nozzles at least toward the first wiper, causing the nozzle face to be wiped.
    Type: Application
    Filed: July 12, 2005
    Publication date: August 3, 2006
    Inventors: Atsumichi Imazeki, Kishiharu Itazu, Hiroshi Ikeda, Kohei Murakami, Masashi Hiratsuka, Atsushi Murakami, Katsushi Amarume, Takaaki Sekiyama
  • Publication number: 20060061638
    Abstract: An ink jet recording apparatus according to the present invention comprises an ink jet recording head for ejecting ink drops and a differential pressure valve provided in an ink feeding line connected to the ink jet recording head, the differential pressure valve generating a head back pressure in the ink jet recording head when ejecting no ink drop. Thus, the degree of freedom for the position of arrangement of an ink reservoir such as an ink tank connected to the ink feeding line is remarkably increased. Accordingly, it is possible to realize an ink jet recording apparatus of reduced size.
    Type: Application
    Filed: February 22, 2005
    Publication date: March 23, 2006
    Inventors: Katsushi Amarume, Kishiharu Itazu, Kohei Murakami, Hiroshi Ikeda, Masashi Hiratsuka, Atsumichi Imazeki, Takaaki Sekiyama, Atsushi Murakami
  • Patent number: 6866372
    Abstract: An ink jet printer is disclosed which, only when ink is to be supplied, supplies ink from a main tank disposed outside a carriage and which can effect the supply of ink stably without the leakage of ink. When it is detected by an ink level sensor that the ink level in a second ink chamber of an ink tank has become lower than a predetermined position, pipes in ports are inserted respectively into slit valves provided in the second ink chamber. Then, by operating a pump, the air present in the second ink chamber is discharged by suction to increase a negative pressure in the second ink chamber, allowing ink to be supplied from a main tank into the second ink chamber. Thus, since the supply of ink is performed by a negative pressure, it is possible to prevent the leakage of ink from the portion where the pipe is inserted into the slit valve.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: March 15, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
  • Patent number: 6726313
    Abstract: An ink jet printer is disclosed which, only when ink is to be supplied, supplies ink from a main tank disposed outside a carriage and which can effect the supply of ink stably without the leakage of ink. When it is detected by an ink level sensor that the ink level in a second ink chamber of an ink tank has become lower than a predetermined position, pipes in ports are inserted respectively into slit valves provided in the second ink chamber. Then, by operating a pump, the air present in the second ink chamber is discharged by suction to increase a negative pressure in the second ink chamber, allowing ink to be supplied from a main tank into the second ink chamber. Thus, since the supply of ink is performed by a negative pressure, it is possible to prevent the leakage of ink from the portion where the pipe is inserted into the slit valve.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: April 27, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
  • Publication number: 20030128256
    Abstract: An ink jet printer is disclosed which, only when ink is to be supplied, supplies ink from a main tank disposed outside a carriage and which can effect the supply of ink stably without the leakage of ink. When it is detected by an ink level sensor that the ink level in a second ink chamber of an ink tank has become lower than a predetermined position, pipes in ports are inserted respectively into slit valves provided in the second ink chamber. Then, by operating a pump, the air present in the second ink chamber is discharged by suction to increase a negative pressure in the second ink chamber, allowing ink to be supplied from a main tank into the second ink chamber. Thus, since the supply of ink is performed by a negative pressure, it is possible to prevent the leakage of ink from the portion where the pipe is inserted into the slit valve.
    Type: Application
    Filed: February 25, 2003
    Publication date: July 10, 2003
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
  • Patent number: 6588874
    Abstract: An airtight elastic cap of an ink-jet recording head and a storage container employing the airtight elastic cap provide high airtightness between a nozzle face and the airtight cap and minimizes ink leak from the recording head even when the head is mounted or dismounted, or when a storage environment changes suddenly. The airtight elastic cap includes a body and an inside wall provided inside thereof. A portion of the wall defines a first space and another portion defines a second space positioned continuously to a center of the first space. The storage container includes a container body that houses the ink-jet recording head and the airtight elastic cap, placed within the container body, that abuts against and protects an ink emission face of the ink-jet recording head while the ink-jet recording is housed.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: July 8, 2003
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takatoshi Tsuchiya, Atsumichi Imazeki, Harumi Tamura
  • Publication number: 20020008726
    Abstract: An airtight elastic cap of an ink-jet recording head and a storage container employing the airtight elastic cap provide high airtightness between a nozzle face and the airtight cap and minimizes ink leak from the recording head even when the head is mounted or dismounted, or when a storage environment changes suddenly. The airtight elastic cap includes a body and an inside wall provided inside thereof. A portion of the wall defines a first space and another portion defines a second space positioned continuously to a center of the first space. The storage container includes a container body that houses the ink-jet recording head and the airtight elastic cap, placed within the container body, that abuts against and protects an ink emission face of the ink-jet recording head while the ink-jet recording is housed.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 24, 2002
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Takatoshi Tsuchiya, Atsumichi Imazeki, Harumi Tamura
  • 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