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).
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Patent number: 9975344Abstract: 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: GrantFiled: March 23, 2017Date of Patent: May 22, 2018Assignee: Fuji Xerox Co., Ltd.Inventors: Masashi Hiratsuka, Atsumichi Imazeki, Yuichi Inoue, Masaki Kataoka
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Publication number: 20180079217Abstract: 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: ApplicationFiled: March 23, 2017Publication date: March 22, 2018Inventors: Masashi Hiratsuka, Atsumichi Imazeki, Yuichi Inoue, Masaki Kataoka
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Publication number: 20150258784Abstract: 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: ApplicationFiled: February 20, 2015Publication date: September 17, 2015Inventors: Kumiko TANAKA, Atsumichi IMAZEKI
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Patent number: 8176630Abstract: 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: GrantFiled: June 15, 2010Date of Patent: May 15, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
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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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Publication number: 20100252528Abstract: 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: ApplicationFiled: June 15, 2010Publication date: October 7, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
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Patent number: 7798628Abstract: 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: GrantFiled: February 7, 2007Date of Patent: September 21, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
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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: 20080049085Abstract: 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: ApplicationFiled: February 7, 2007Publication date: February 28, 2008Inventors: Masaki Kataoka, Hideki Fukunaga, Hiroshi Inoue, Yuji Nishimura, Susumu Hirakata, Atsumichi Imazeki
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Publication number: 20060170727Abstract: 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: ApplicationFiled: July 12, 2005Publication date: August 3, 2006Inventors: Atsumichi Imazeki, Kishiharu Itazu, Hiroshi Ikeda, Kohei Murakami, Masashi Hiratsuka, Atsushi Murakami, Katsushi Amarume, Takaaki Sekiyama
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Publication number: 20060061638Abstract: 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: ApplicationFiled: February 22, 2005Publication date: March 23, 2006Inventors: Katsushi Amarume, Kishiharu Itazu, Kohei Murakami, Hiroshi Ikeda, Masashi Hiratsuka, Atsumichi Imazeki, Takaaki Sekiyama, Atsushi Murakami
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Patent number: 6866372Abstract: 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: GrantFiled: February 25, 2003Date of Patent: March 15, 2005Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
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Patent number: 6726313Abstract: 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: GrantFiled: August 30, 2000Date of Patent: April 27, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
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Publication number: 20030128256Abstract: 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: ApplicationFiled: February 25, 2003Publication date: July 10, 2003Applicant: Fuji Xerox Co., Ltd.Inventors: Kazuyuki Oda, Ichiro Tomikawa, Atsumichi Imazeki, Fumihiko Ogasawara, Yumiko Namba, Jun Isozaki
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Patent number: 6588874Abstract: 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: GrantFiled: July 23, 2001Date of Patent: July 8, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Takatoshi Tsuchiya, Atsumichi Imazeki, Harumi Tamura
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Publication number: 20020008726Abstract: 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: ApplicationFiled: July 23, 2001Publication date: January 24, 2002Applicant: Fuji Xerox Co., Ltd.Inventors: Takatoshi Tsuchiya, Atsumichi Imazeki, Harumi Tamura
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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