Patents by Inventor Kayo Mukai
Kayo Mukai 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: 9592670Abstract: There are provided a liquid accommodating container that has a sufficient volume for reserving waste ink and can accommodate therein a sufficient amount of ink used in printing with space-saving, a liquid ejecting device provided therewith and a liquid introducing method. Therefore non-print ink is discharged and reserved in a portion, in which unused ink for printing was reserved, in an ink tank for replacement of the unused ink.Type: GrantFiled: June 25, 2015Date of Patent: March 14, 2017Assignee: CANON FINETECH INC.Inventors: Yuya Obata, Hiroyuki Ishinaga, Kayo Mukai
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Patent number: 9409404Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas to flow into the liquid chamber through the opening.Type: GrantFiled: March 21, 2014Date of Patent: August 9, 2016Assignee: Canon Finetech, Inc.Inventors: Yoshihito Fukuda, Kenro Yamaguchi, Takashi Sugai, Noritaka Ota, Kayo Mukai, Masayoshi Yazaki
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Patent number: 9399348Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas inside the liquid chamber to flow out through the opening.Type: GrantFiled: March 21, 2014Date of Patent: July 26, 2016Assignee: Canon Finetech, Inc.Inventors: Masayoshi Yazaki, Kayo Mukai, Noritaka Ota, Takashi Sugai, Kenro Yamaguchi
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Publication number: 20150375511Abstract: There are provided a liquid accommodating container that has a sufficient volume for reserving waste ink and can accommodate therein a sufficient amount of ink used in printing with space-saving, a liquid ejecting device provided therewith and a liquid introducing method. Therefore non-print ink is discharged and reserved in a portion, in which unused ink for printing was reserved, in an ink tank for replacement of the unused ink.Type: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Yuya Obata, Hiroyuki Ishinaga, Kayo Mukai
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Patent number: 9132657Abstract: A printing apparatus includes a print head that ejects ink for printing, an ink tank from which ink is fed to the print head, a first channel provided between the print head and the ink tank to feed ink in the ink tank to the print head, a second channel through which the ink in the first channel is transferred, and a pump connected to the second channel to transfer the ink in the first channel. The pump allows air or the ink in the first channel to be discharged via the second channel.Type: GrantFiled: April 18, 2013Date of Patent: September 15, 2015Assignee: Canon Finetech, Inc.Inventors: Yuuichi Takahashi, Kayo Mukai, Hiroki Niikura
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Publication number: 20140285586Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas to flow into the liquid chamber through the opening.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: CANON FINETECH INC.Inventors: Yoshihito FUKUDA, Kenro YAMAGUCHI, Takashi SUGAI, Noritaka OTA, Kayo MUKAI, Masayoshi YAZAKI
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Publication number: 20140285585Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas inside the liquid chamber to flow out through the opening.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: CANON FINETECH INC.Inventors: Masayoshi YAZAKI, Kayo MUKAI, Noritaka OTA, Takashi SUGAI, Kenro YAMAGUCHI
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Publication number: 20130286116Abstract: A printing apparatus includes a print head that ejects ink for printing, an ink tank from which ink is fed to the print head, a first channel provided between the print head and the ink tank to feed ink in the ink tank to the print head, a second channel through which the ink in the first channel is transferred, and a pump connected to the second channel to transfer the ink in the first channel. The pump allows air or the ink in the first channel to be discharged via the second channel.Type: ApplicationFiled: April 18, 2013Publication date: October 31, 2013Applicant: Canon Finetech Inc.Inventors: Yuuichi TAKAHASHI, Kayo MUKAI, Hiroki NIIKURA
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Patent number: 8337000Abstract: An objective of the invention is to provide an improved ink storage apparatus and an inkjet print head including the ink storage apparatus. Furthermore, an effective elimination of the air bubbles flowed into or generated in the print head is realized by an ink storage apparatus and an inkjet print head including the ink storage apparatus.Type: GrantFiled: February 5, 2010Date of Patent: December 25, 2012Assignee: Canon Finetech Inc.Inventors: Chonsun Paku, Kayo Mukai, Yuichi Takahashi
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Patent number: 8287098Abstract: A liquid ejection head, a liquid supply apparatus, a liquid ejection apparatus, and a liquid supply method can enable the channel resistance and pressure loss of liquid in the liquid ejection head to be reduced to increase the speed at which liquid is supplied to the nozzles. To achieve this, an ink supply chamber is placed so as to be laminated on a main ink supply chamber. A filter interposed between the main ink supply chamber and the ink supply chamber extends along a surface substantially parallel to a nozzle arrangement plane on which a plurality of nozzles are arranged.Type: GrantFiled: December 23, 2009Date of Patent: October 16, 2012Assignee: Canon Finetech Inc.Inventors: Kayo Mukai, Tomohiro Fujii, Hiroyuki Ishinaga, Yoichi Sonobe
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Publication number: 20100201765Abstract: An objective of the invention is to provide an improved ink storage apparatus and an inkjet print head including the ink storage apparatus. Furthermore, an effective elimination of the air bubbles flowed into or generated in the print head is realized by an ink storage apparatus and an inkjet print head including the ink storage apparatus.Type: ApplicationFiled: February 5, 2010Publication date: August 12, 2010Applicant: CANON FINETECH INC.Inventors: Chonsun Paku, Kayo Mukai, Yuichi Takahashi
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Patent number: 7762649Abstract: A printing head, an ink jet printing apparatus, and an ink jet printing method can achieve high-speed printing while realizing a high-quality image. An ejection port face where an ejection port of the printing head is located is formed so that the normal line thereof intersects with an axis line of a nozzle at a predetermined angle. The ejection port face inclines in a relative moving direction of the printing head with a printing medium as a reference.Type: GrantFiled: March 26, 2007Date of Patent: July 27, 2010Assignee: Canon Finetech Inc.Inventors: Kayo Mukai, Hiromitsu Hirabayashi, Satoshi Nawa
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Publication number: 20100097433Abstract: The present invention provides a liquid ejection head, a liquid supply apparatus, a liquid ejection apparatus, and a liquid supply method which enable the channel resistance and pressure loss of liquid in the liquid ejection head to be reduced to increase the speed at which liquid is supplied to the nozzles. To achieve this, an ink supply chamber (44) is placed so as to be laminated on a main ink supply chamber (42). A filter (40) interposed between the main ink supply chamber (42) and the ink supply chamber (44) extends along a surface substantially parallel to a nozzle arrangement plane on which a plurality of nozzles are arranged.Type: ApplicationFiled: December 23, 2009Publication date: April 22, 2010Applicant: CANON FINETECH INC.Inventors: Kayo Mukai, Tomohiro Fujii, Hiroyuki Ishinaga, Yoichi Sonobe
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Patent number: 7665826Abstract: Disclosed is an inkjet printing head which ejects ink in response to generation a bubble in the ink accompanying the action of heat from a heater, and which preferably allows ejection energy to be effectively used, and desired attachment accuracy of a movable valve to be secured and maintained. To this end, employed is a two-body structure formed of a substrate including the heater; and a valve retaining member having the movable valve. Then, the effective use of ejection energy is achieved by appropriately selecting the shape and dimensions of the movable valve. Furthermore, the desired attachment accuracy is secured and maintained by attaching the valve retaining member to the substrate by applying a photolithography process without using an adhesive agent.Type: GrantFiled: February 27, 2007Date of Patent: February 23, 2010Assignee: Canon Finetech Inc.Inventors: Kayo Mukai, Toshio Kashino
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Patent number: 7661798Abstract: A liquid ejection head, a liquid supply apparatus, a liquid ejection apparatus, and a liquid supply method can enable the channel resistance and pressure loss of liquid in the liquid ejection head to be reduced to increase the speed at which liquid is supplied to the nozzles. To achieve this, an ink supply chamber is placed so as to be laminated on a main ink supply chamber. A filter interposed between the main ink supply chamber and the ink supply chamber extends along a surface substantially parallel to a nozzle arrangement plane on which a plurality of nozzles are arranged.Type: GrantFiled: November 16, 2006Date of Patent: February 16, 2010Assignee: Canon Finetech Inc.Inventors: Kayo Mukai, Tomohiro Fujii, Hiroyuki Ishinaga, Yoichi Sonobe
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Patent number: 7537318Abstract: Ink is smoothly supplied so as to increase ink ejection speed to achieve high-speed printing. Thus, a filter is used to partition an ink storing chamber into a first and second storing chambers. Ink stored in the first storing chamber is supplied to a common liquid chamber in an ejection element. Ink introduced into the second ink storing chamber through a joint is supplied to the first storing chamber through the filter. An ink storing chamber member is joined to an ink storing chamber cover member to form the first and second ink storing chambers partitioned by the filter.Type: GrantFiled: January 19, 2006Date of Patent: May 26, 2009Assignee: Canon Finetech Inc.Inventors: Tomohiro Fujii, Hiroyuki Ishinaga, Kayo Mukai
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Patent number: 7527347Abstract: The present invention is intended to alleviate stresses that occur in a bonding surface between the heater substrate and the base plate due to effects of heat history in the ink jet print head manufacturing process and to heat produced during the printing operation. To this end, the present invention provides an ink jet print head comprising: a heater substrate formed with heaters to generate thermal energy for ejecting ink; and a base plate mounted to that part of a surface of the heater substrate in which the heaters are not formed; wherein a plurality of slits each of which extends in a direction perpendicular to a direction of an array of the heaters formed in the heater substrate are formed in a heater substrate mounting surface of the base plate at predetermined intervals in a direction of an array of the heaters.Type: GrantFiled: March 31, 2006Date of Patent: May 5, 2009Assignee: Canon Kabushiki KaishaInventor: Kayo Mukai
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Publication number: 20080309744Abstract: A liquid-ejecting head is provided whereby it is possible to eject both a main droplet and a satellite in the desired ejection direction, and furthermore, wherein no bias exists in the lifetimes of the heaters of a tip A and a tip B. In order to do so, a stopper is formed inside the ejection nozzle, the stopper limiting the movement of movable valves during bubble formation.Type: ApplicationFiled: June 11, 2008Publication date: December 18, 2008Applicant: CANON FINETECH INC.Inventors: Kayo Mukai, Toshio Kashino, Teruo Tazunoki
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Patent number: 7434916Abstract: Disclosed is a liquid ejection head capable of performing a stable ejection operation at high speed even when thermal expansion of a valve supporting member occurs during liquid ejection. This is because the liquid ejection head allows the thermal expansion to influence supported valves only to a small extent, and a highly accurate and stable adhesion state to be obtained. To this end, first holes, second holes and slits are provided in the valve supporting member.Type: GrantFiled: February 26, 2007Date of Patent: October 14, 2008Assignee: Canon Finetech Inc.Inventors: Kayo Mukai, Masahiro Hamano
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Publication number: 20070247493Abstract: The present invention provides a printing head, an ink jet printing apparatus, and an ink jet printing method capable of achieving high-speed printing while realizing high-quality image. An ejection port face where an ejection port of the printing head is located is formed so that the normal line thereof intersects with an axis line of a nozzle at a predetermined angle. The ejection port face inclines in a relative moving direction of the printing head with a printing medium as a reference.Type: ApplicationFiled: March 26, 2007Publication date: October 25, 2007Applicant: CANON FINETECH INC.Inventors: KAYO MUKAI, Hiromitsu Hirabayashi, Satoshi Nawa