Patents by Inventor Hiroshi Arimizu
Hiroshi Arimizu 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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Publication number: 20200276515Abstract: Provided is an UFB generating apparatus and an UFB generating method capable of efficiently generating an UFB-containing liquid with high purity. To this end, the ultrafine bubble generating apparatus includes a pre-processing unit that performs predetermined pre-processing on a liquid W and a generating unit that generates ultrafine bubbles in the liquid on which the pre-processing is performed. The generating unit generates the ultrafine bubbles by causing a heating element, which is provided in the liquid on which the pre-processing is performed, to generate heat to generate film boiling on an interface between the liquid and the heating element.Type: ApplicationFiled: February 27, 2020Publication date: September 3, 2020Inventors: Masahiko Kubota, Akitoshi Yamada, Yoshiyuki Imanaka, Yumi Yanai, Hiroshi Arimizu, Hiroyuki Ishinaga, Teruo Ozaki
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Patent number: 10549554Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: GrantFiled: August 7, 2018Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10350902Abstract: A collection unit configured to collect ink mist generated due to a discharge of ink from a head configured to discharge the ink includes a filter for capturing the ink mist and a liquid supply portion configured to supply a liquid to the filter.Type: GrantFiled: June 28, 2018Date of Patent: July 16, 2019Assignee: Canon Kabushiki KaishaInventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Hiroshi Arimizu, Yoshinori Itoh, Hideo Sugimura, Takashi Horiba, Akira Fujikake
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Publication number: 20190009567Abstract: A collection unit configured to collect ink mist generated due to a discharge of ink from a head configured to discharge the ink includes a filter for capturing the ink mist and a liquid supply portion configured to supply a liquid to the filter.Type: ApplicationFiled: June 28, 2018Publication date: January 10, 2019Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Hiroshi Arimizu, Yoshinori Itoh, Hideo Sugimura, Takashi Horiba, Akira Fujikake
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Patent number: 10155388Abstract: A blowout port for gas is efficiently configured without impairing mist collection performance. Two blowout ports for gas are adjacent to each other by interposing a partition. An end of the partition is provided at a position near a deep side of the two blowout ports relative to ends of the two blowout ports so as to form a step.Type: GrantFiled: January 25, 2017Date of Patent: December 18, 2018Assignee: Canon Kabushiki KaishaInventors: Yusuke Imahashi, Masahiko Kubota, Hiroshi Arimizu, Nobuhito Yamaguchi, Arihito Miyakoshi, Yoshinori Itoh
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Patent number: 10150297Abstract: A printing apparatus according to the present invention includes a plurality of ejection heads for ejecting liquid and a plurality of mist collection units configured to collect mist generated by the ejection heads that are disposed along a medium conveyance direction. The plurality of mist collection units include a first mist collection unit. The first mist collection unit is provided to be inclined to the upstream side of a medium conveyance direction with regard to a perpendicular line perpendicular to a floor. The first mist collection unit has a liquid retention part disposed at the upstream side than an ink mist suction hole.Type: GrantFiled: May 24, 2017Date of Patent: December 11, 2018Assignee: Canon Kabushiki KaishaInventors: Hiroshi Arimizu, Shinya Asano, Yusuke Imahashi, Masahiko Kubota, Arihito Miyakoshi, Yoshinori Itoh
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Patent number: 10144217Abstract: Gas is ejected toward a region between a liquid ejection head and a recording medium so as to enlarge and stabilize a vortex generated by an airflow generated by liquid droplets ejected from ejection ports. Accordingly, an airflow turbulence generated between the liquid ejection head and the recording medium is reduced and displacements of positions at which the liquid droplets are applied due to the airflow turbulence are reduced.Type: GrantFiled: March 1, 2016Date of Patent: December 4, 2018Assignee: Canon Kabushiki KaishaInventors: Arihito Miyakoshi, Ken Tsuchii, Nobuhito Yamaguchi, Hiroshi Arimizu, Yumi Komamiya, Koichi Ishida
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Publication number: 20180339530Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: ApplicationFiled: August 7, 2018Publication date: November 29, 2018Inventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10124608Abstract: A platen disposed at a position at which the platen faces a printing head includes a contact portion that comes into contact with a recording medium, a non-contact portion that does not come into contact with the recording medium, and an ink receiving portion that receives ink ejected to beyond the recording medium. A recessed portion is formed between the ink receiving portion and the contact portion in the width direction of the recording medium so as to be lower than the contact portion in the vertical direction. A supply portion that supplies air to the recessed portion is formed upstream of the recessed portion in the conveyance direction of the recording medium.Type: GrantFiled: March 17, 2017Date of Patent: November 13, 2018Assignee: Canon Kabushiki KaishaInventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10071572Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: GrantFiled: May 20, 2016Date of Patent: September 11, 2018Assignee: Canon Kabushiki KaishaInventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10029496Abstract: An object of the present invention is to provide an ink jet printing apparatus that can alleviate an adverse influence by ink mist or airflow turbulence with an inexpensive and small-sized configuration without using power. A printing unit includes a first opening that is parallel to a main scanning direction and is formed at a first surface facing a space defined between an ejection port surface having ejection ports formed thereat and a print medium and a second opening formed at a second surface that is parallel to the main scanning direction and different from the first surface. The first opening and the second opening communicate with each other via a first communication path. The first opening and the second opening are formed in different pressure regions, respectively, in which pressures different from each other are produced when the printing unit is moved in the main scanning direction.Type: GrantFiled: November 22, 2016Date of Patent: July 24, 2018Assignee: Canon Kabushiki KaishaInventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Yusuke Imahashi, Arihito Miyakoshi, Yoshinori Itoh
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Patent number: 10016982Abstract: An inkjet apparatus includes, a carriage, mounting a head that discharges ink, configured to reciprocally move with respect to a sheet that receives the ink, a sensor unit, attached to the carriage, configured to read information from the sheet, and a rectifying skirt, attached to the carriage, having a rectifying surface that faces the sheet. The sensor unit is disposed above the rectifying skirt.Type: GrantFiled: September 19, 2016Date of Patent: July 10, 2018Assignee: Canon Kabushiki KaishaInventors: Daigo Kuronuma, Tomoyuki Nagase, Tomohito Abe, Hiroshi Arimizu, Yusuke Imahashi, Nobuhito Yamaguchi, Yoshihiro Koyama
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Patent number: 9902154Abstract: A platen disposed so as to face a printing head includes a third support portion. A second suction hole is formed in an area through which a recording medium passes at least beyond the third support portion in the width direction of the recording medium or downstream of the third support portion in the conveyance direction. A supply port is formed between the third support portion and the second suction hole. Air is sucked into the second suction hole and supplied toward the recording medium through the supply port.Type: GrantFiled: March 8, 2017Date of Patent: February 27, 2018Assignee: Canon Kabushiki KaishaInventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Publication number: 20170341399Abstract: A printing apparatus according to the present invention includes a plurality of ejection heads for ejecting liquid and a plurality of mist collection units configured to collect mist generated by the ejection heads that are disposed along a medium conveyance direction. The plurality of mist collection units include a first mist collection unit. The first mist collection unit is provided to be inclined to the upstream side of a medium conveyance direction with regard to a perpendicular line perpendicular to a floor. The first mist collection unit has a liquid retention part disposed at the upstream side than an ink mist suction hole.Type: ApplicationFiled: May 24, 2017Publication date: November 30, 2017Inventors: Hiroshi Arimizu, Shinya Asano, Yusuke Imahashi, Masahiko Kubota, Arihito Miyakoshi, Yoshinori Itoh
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Publication number: 20170274676Abstract: A platen disposed at a position at which the platen faces a printing head includes a contact portion that comes into contact with a recording medium, a non-contact portion that does not come into contact with the recording medium, and an ink receiving portion that receives ink ejected to beyond the recording medium. A recessed portion is formed between the ink receiving portion and the contact portion in the width direction of the recording medium so as to be lower than the contact portion in the vertical direction. A supply portion that supplies air to the recessed portion is formed upstream of the recessed portion in the conveyance direction of the recording medium.Type: ApplicationFiled: March 17, 2017Publication date: September 28, 2017Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Publication number: 20170259571Abstract: A platen disposed so as to face a printing head includes a third support portion. A second suction hole is formed in an area through which a recording medium passes at least beyond the third support portion in the width direction of the recording medium or downstream of the third support portion in the conveyance direction. A supply port is formed between the third support portion and the second suction hole. Air is sucked into the second suction hole and supplied toward the recording medium through the supply port.Type: ApplicationFiled: March 8, 2017Publication date: September 14, 2017Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Publication number: 20170217192Abstract: A blowout port for gas is efficiently configured without impairing mist collection performance. Two blowout ports for gas are adjacent to each other by interposing a partition. An end of the partition is provided at a position near a deep side of the two blowout ports relative to ends of the two blowout ports so as to form a step.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: Yusuke Imahashi, Masahiko Kubota, Hiroshi Arimizu, Nobuhito Yamaguchi, Arihito Miyakoshi, Yoshinori Itoh
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Patent number: 9701122Abstract: A liquid ejecting apparatus includes a moving unit configured to make a relative movement between at least one liquid ejecting unit, having an ejection port for ejecting liquid, and a print medium. The liquid ejecting apparatus includes at least one mist removing unit provided downstream of the at least one liquid ejecting unit in a movement direction in which the print medium is moved in the case of relative movement. The mist removing unit includes at least one suction hole configured to suck air existing in a region defined by the liquid ejecting unit and the print medium together with mist, and at least one blowing hole that is formed downstream of the suction hole in the movement direction, with the blowing hole configured to blow air toward the print medium so as to generate a vortex of gas downstream of the suction hole.Type: GrantFiled: March 18, 2016Date of Patent: July 11, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Arihito Miyakoshi, Koichi Ishida, Yoshinori Itoh
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Publication number: 20170157959Abstract: An object of the present invention is to provide an ink jet printing apparatus that can alleviate an adverse influence by ink mist or airflow turbulence with an inexpensive and small-sized configuration without using power. A printing unit includes a first opening that is parallel to a main scanning direction and is formed at a first surface facing a space defined between an ejection port surface having ejection ports formed thereat and a print medium and a second opening formed at a second surface that is parallel to the main scanning direction and different from the first surface. The first opening and the second opening communicate with each other via a first communication path. The first opening and the second opening are formed in different pressure regions, respectively, in which pressures different from each other are produced when the printing unit is moved in the main scanning direction.Type: ApplicationFiled: November 22, 2016Publication date: June 8, 2017Inventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Yusuke Imahashi, Arihito Miyakoshi, Yoshinori Itoh
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Patent number: 9656474Abstract: Gas is blown at a predetermined speed from a predetermined area on an orifice substrate with reference to the position of an ejection port array.Type: GrantFiled: March 1, 2016Date of Patent: May 23, 2017Assignee: Canon Kabushiki KaishaInventors: Hiroshi Arimizu, Ken Tsuchii, Nobuhito Yamaguchi, Yumi Komamiya, Arihito Miyakoshi, Koichi Ishida