Patents by Inventor Makoto Kanno
Makoto Kanno 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: 11609510Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path. The developing device includes a developing device body in which the first transport path and the second transport path are formed. The developing device also includes a developer discharging structure that discharges excess developer discharged from the first transport path to outside through the second transport path or through a space between an end portion of the second transport path and the developing device body.Type: GrantFiled: August 24, 2021Date of Patent: March 21, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Katsumi Yamada, Yoshihisa Nakao, Masanori Kato, Shota Igawa, Atsushi Funada, Mitsutoshi Hongo, Makoto Kanno, Daisuke Uchimitsu
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Patent number: 11567429Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing member that is disposed to face the first transport path and that receives the developer from the first transport path; and a driving device that operates such that a relative speed ratio between a rotational speed of the developing member and a rotational speed of the second transport member is changeable.Type: GrantFiled: August 24, 2021Date of Patent: January 31, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Masanori Kato, Katsumi Yamada, Shota Igawa, Yoshihisa Nakao, Atsushi Funada, Mitsutoshi Hongo, Makoto Kanno, Daisuke Uchimitsu, Yoshitaka Nakajima, Sadayuki Tsujino
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Patent number: 11567430Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing member that is disposed to face the first transport path and that receives the developer from the first transport path; and a third transport member that is disposed in a third transport path through which the developer that has not been used by the developing member is collected and transported to the second transport path. A central shaft of the second transport member is disposed farther in a vertically upward direction than is a central shaft of the third transport member.Type: GrantFiled: August 24, 2021Date of Patent: January 31, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Daisuke Uchimitsu, Masanori Kato, Katsumi Yamada, Shota Igawa, Yoshihisa Nakao, Atsushi Funada, Mitsutoshi Hongo, Makoto Kanno, Yoshitaka Nakajima, Sadayuki Tsujino
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Publication number: 20220373931Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing device body in which the first transport path and the second transport path are formed; and a developer discharging structure that discharges excess developer discharged from the first transport path to outside through the second transport path or through a space between an end portion of the second transport path and the developing device body.Type: ApplicationFiled: August 24, 2021Publication date: November 24, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Katsumi YAMADA, Yoshihisa Nakao, Masanori Kato, Shota Igawa, Atsushi Funada, Mitsutoshi Hongo, Makoto Kanno, Daisuke Uchimitsu
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Publication number: 20220373928Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing member that is disposed to face the first transport path and that receives the developer from the first transport path; and a third transport member that is disposed in a third transport path through which the developer that has not been used by the developing member is collected and transported to the second transport path. A central shaft of the second transport member is disposed farther in a vertically upward direction than is a central shaft of the third transport member.Type: ApplicationFiled: August 24, 2021Publication date: November 24, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Daisuke UCHIMITSU, Masanori KATO, Katsumi YAMADA, Shota IGAWA, Yoshihisa NAKAO, Atsushi FUNADA, Mitsutoshi HONGO, Makoto KANNO, Yoshitaka NAKAJIMA, Sadayuki TSUJINO
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Publication number: 20220373927Abstract: A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing member that is disposed to face the first transport path and that receives the developer from the first transport path; and a driving device that operates such that a relative speed ratio between a rotational speed of the developing member and a rotational speed of the second transport member is changeable.Type: ApplicationFiled: August 24, 2021Publication date: November 24, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Masanori KATO, Katsumi YAMADA, Shota IGAWA, Yoshihisa NAKAO, Atsushi FUNADA, Mitsutoshi HONGO, Makoto KANNO, Daisuke UCHIMITSU, Yoshitaka NAKAJIMA, Sadayuki TSUJINO
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Patent number: 11061347Abstract: A printer including: a powder housing chamber that houses powder including a color material and carrier; a supplying conveying unit that conveys the powder while supplying the powder to a powder holder that holds the powder, by forward rotation; a detection unit that detects the amount of powder within the powder housing chamber, upstream in a conveyance direction from a discharge unit that discharges surplus powder, downstream in the conveyance direction from the supplying conveying unit, and above a rotary shaft of the supplying conveying unit; and a control unit that controls at least one of the rotation direction and the rotation speed of the supplying conveying unit on the basis of a detection result of the detection unit.Type: GrantFiled: February 24, 2020Date of Patent: July 13, 2021Assignee: FUJIFILM Business Innovation Corp.Inventors: Makoto Kanno, Ryo Fukuno, Tomoyuki Hamachi
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Patent number: 10990034Abstract: A powder storage height detection device includes: a main body that includes a transport path along which powder is transported; a powder transport unit that is disposed to rotate in the transport path and includes a transporter provided spirally around a rotational shaft; a swinging unit that comes into contact with a surface of the powder transported in the transport path, and swings by following at least a storage height of the surface; a detection unit that detects a state of swinging of the swinging unit; and a determination unit that determines presence or absence of the powder based on a detection signal outputted from the detection unit.Type: GrantFiled: March 24, 2020Date of Patent: April 27, 2021Assignee: FUJI XEROX CO., LTD.Inventors: Tomoyuki Hamachi, Yoshihisa Nakao, Makoto Kanno, Taiyou Uehara, Daisuke Uchimitsu, Ryo Fukuno
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Publication number: 20210088937Abstract: A printer including: a powder housing chamber that houses powder including a color material and carrier; a supplying conveying unit that conveys the powder while supplying the powder to a powder holder that holds the powder, by forward rotation; a detection unit that detects the amount of powder within the powder housing chamber, upstream in a conveyance direction from a discharge unit that discharges surplus powder, downstream in the conveyance direction from the supplying conveying unit, and above a rotary shaft of the supplying conveying unit; and a control unit that controls at least one of the rotation direction and the rotation speed of the supplying conveying unit on the basis of a detection result of the detection unit.Type: ApplicationFiled: February 24, 2020Publication date: March 25, 2021Applicant: FUJI XEROX CO., LTD.Inventors: Makoto KANNO, Ryo FUKUNO, Tomoyuki HAMACHI
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Publication number: 20210088932Abstract: A powder storage height detection device includes: a main body that includes a transport path along which powder is transported; a powder transport unit that is disposed to rotate in the transport path and includes a transporter provided spirally around a rotational shaft; a swinging unit that comes into contact with a surface of the powder transported in the transport path, and swings by following at least a storage height of the surface; a detection unit that detects a state of swinging of the swinging unit; and a determination unit that determines presence or absence of the powder based on a detection signal outputted from the detection unit.Type: ApplicationFiled: March 24, 2020Publication date: March 25, 2021Applicant: FUJI XEROX CO., LTD.Inventors: Tomoyuki HAMACHI, Yoshihisa NAKAO, Makoto KANNO, Taiyou UEHARA, Daisuke UCHIMITSU, Ryo FUKUNO
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Patent number: 10890861Abstract: A powder storage height detection device includes: a main body that has a transport path along which powder is transported; a powder transport unit that is disposed to rotate in the transport path and includes a transporter provided spirally around a rotational shaft; a swinging unit that comes into contact with a surface of the powder transported in the transport path, and swings by following at least a storage height of the surface; and a detection unit that detects a state of swinging of the swinging unit. The transport unit includes a non-transport portion in which the transporter is not present, and the swinging unit is located and disposed to swing in the non-transport portion, and an upper portion located above a contact portion to be in contact with the powder is configurated by an upward convex curved surface.Type: GrantFiled: February 19, 2020Date of Patent: January 12, 2021Assignee: FUJI XEROX CO., LTD.Inventors: Yoshihisa Nakao, Makoto Kanno, Taiyou Uehara, Daisuke Uchimitsu, Ryo Fukuno, Tomoyuki Hamachi
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Patent number: 10884354Abstract: A developer supply device includes a developer container, an adjustment mechanism, and a controller. The developer container is configured to supply developer by rotating. The adjustment mechanism is configured to adjust a rotation angle of the developer container. The controller is configured to control the rotation angle of the developer container by the adjustment mechanism according to a developer remaining amount in the developer container.Type: GrantFiled: October 21, 2019Date of Patent: January 5, 2021Assignee: FUJI XEROX CO., LTD.Inventors: Daisuke Uchimitsu, Makoto Kanno, Katsumi Yamada, Yoshihisa Nakao, Ryo Fukuno, Tomoyuki Hamachi
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Patent number: 10877393Abstract: An image forming device includes: a developer holder that is rotatably arranged opposing a latent image holder holding an electrostatic latent image, holds developer including carrier and toner charged to a predetermined regular polarity, has a potential of the same polarity as the regular polarity applied thereto, and develops the electrostatic latent image using the toner; an opposite electrode that is arranged opposing the developer holder with a predetermined gap therebetween; and a controller that changes at least one of a potential applied to the opposite electrode and a rotation direction of the opposite electrode in accordance with an area coverage of the electrostatic latent image of the latent image holder.Type: GrantFiled: July 24, 2019Date of Patent: December 29, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Makoto Kanno, Tomoyuki Hamachi, Ryo Fukuno
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Patent number: 10795283Abstract: An image forming apparatus includes a container, a storage unit, a drive unit, a detector, and a determination unit. The container is configured to accommodate toner therein and be detachably mounted on an image forming apparatus main body. The storage unit is configured to store identification information on the toner accommodated in the container, and use history information. The drive unit is configured to rotationally drive a rotation target constituted by the container to transport the toner to an opening provided in an end of the container. The detector is configured to detect a current value of the drive unit. The determination unit is configured to determine a state of the container based on the current value detected by the detector.Type: GrantFiled: August 13, 2019Date of Patent: October 6, 2020Assignee: FUJI XEROX CO., LTD.Inventor: Makoto Kanno
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Publication number: 20200310286Abstract: An image forming apparatus includes a container, a storage unit, a drive unit, a detector, and a determination unit. The container is configured to accommodate toner therein. and be detachably mounted on an image forming apparatus main body. The storage unit is configured to store identification information on the toner accommodated in the container, and use history information. The drive unit is configured to rotationally drive a rotation target constituted by the container to transport the toner to an opening provided in an end of the container. The detector is configured to detect a current value of the drive unit. The determination unit is configured to determine a state of the container based on the current value detected by the detector.Type: ApplicationFiled: August 13, 2019Publication date: October 1, 2020Applicant: FUJI XEROX CO., LTD.Inventor: Makoto KANNO
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Publication number: 20200310292Abstract: A developer supply device includes a developer container, an adjustment mechanism, and a controller. The developer container is configured to supply developer by rotating. The adjustment mechanism is configured to adjust a rotation angle of the developer container. The controller is configured to control the rotation angle of the developer container by the adjustment mechanism according to a developer remaining amount in the developer container.Type: ApplicationFiled: October 21, 2019Publication date: October 1, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Daisuke UCHIMITSU, Makoto KANNO, Katsumi YAMADA, Yoshihisa NAKAO, Ryo FUKUNO, Tomoyuki HAMACHI
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Publication number: 20200310277Abstract: An image forming device includes: a developer holder that is rotatably arranged opposing a latent image holder holding an electrostatic latent image, holds developer including carrier and toner charged to a predetermined regular polarity, has a potential of the same polarity as the regular polarity applied thereto, and develops the electrostatic latent image using the toner; an opposite electrode that is arranged opposing the developer holder with a predetermined gap therebetween; and a controller that changes at least one of a potential applied to the opposite electrode and a rotation direction of the opposite electrode in accordance with an area coverage of the electrostatic latent image of the latent image holder.Type: ApplicationFiled: July 24, 2019Publication date: October 1, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Makoto KANNO, Tomoyuki HAMACHI, Ryo FUKUNO
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Patent number: 10649364Abstract: An image forming apparatus includes a developing device. The developing device transports a two-component developer by a transporting unit so that the two-component developer passes through a developing roller. The two-component developer is stored in a storage chamber provided with a transporting path. The transporting unit rotates in the transporting path. The developing device causes a portion of the two-component developer to overflow from a discharge port provided at the transporting path, and to discharge the two-component developer. The image forming apparatus has a period in which a first operation is executed, the first operation of reversely rotating the transporting unit at a high speed so that a rotational direction of the transporting unit is an opposite direction to that at a time of development and a rotational speed of the transporting unit is higher than that at the time of development.Type: GrantFiled: August 8, 2019Date of Patent: May 12, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Tomoyuki Hamachi, Ryo Fukuno, Daisuke Uchimitsu, Toshiaki Suzuki, Makoto Kanno
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Patent number: D829813Type: GrantFiled: August 18, 2017Date of Patent: October 2, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Keisuke Kubo, Seigo Shinozaki, Makoto Kanno
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Patent number: D829814Type: GrantFiled: August 18, 2017Date of Patent: October 2, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Keisuke Kubo, Seigo Shinozaki, Makoto Kanno