Patents by Inventor Ko UMENAI
Ko UMENAI 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: 11662681Abstract: An image forming apparatus includes: a belt to be transported; an image forming body that forms an image on the belt or a recording medium that is transported by the belt; a moving mechanism that moves the belt in a movement direction extending in a thickness direction of the belt; a rotational member including a rotation shaft extending in the movement direction and a contact portion that is rotatable around the rotation shaft and that is in contact with a side surface of the belt regardless of a position of the belt in the movement direction; an acquirer that acquires a physical amount that changes due to rotation of the contact portion around the rotation shaft when the belt moves in a width direction; and a detector that detects a movement amount of the belt in the width direction based on the physical amount acquired by the acquirer.Type: GrantFiled: December 1, 2021Date of Patent: May 30, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Ko Umenai, Satoshi Ezawa
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Publication number: 20230062618Abstract: An image forming apparatus includes: an image carrier body to be transported; an image forming unit that forms an image on the image carrier body; a change roller that is in contact with an inner peripheral surface of the image carrier body so as to be rotatable around a rotation axis and that is capable of changing an angle of the rotation axis with respect to a width direction of the image carrier body; a flywheel provided at the change roller; and a driving mechanism that applies a driving force for changing an angle of the rotation axis with respect to the width direction to an applied portion that moves together with the change roller. A direction of the driving force applied to the applied portion by the driving mechanism is opposite to a direction in which the applied portion moves due to gravity acting on the flywheel.Type: ApplicationFiled: December 9, 2021Publication date: March 2, 2023Applicant: FUJIFILM Business Innovation Corp.Inventor: Ko UMENAI
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Publication number: 20230069714Abstract: An image forming apparatus includes: an annular formation target body to be transported; a change roller that is in contact with an inner peripheral surface of the formation target body so as to be rotatable around a rotation axis and that is capable of changing an angle of the rotation axis with respect to a width direction of the formation target body; multiple first image forming bodies that are arranged at a first distance from each other along the formation target body on an upstream side of the change roller in a transport direction of the formation target body, and that form images on the formation target body; and multiple second image forming bodies that are arranged at a second distance smaller than the first distance from each other along the formation target body on a downstream side of the change roller in the transport direction of the formation target body, and that form images on the formation target body.Type: ApplicationFiled: December 21, 2021Publication date: March 2, 2023Applicant: FUJIFILM Business Innovation Corp.Inventor: Ko UMENAI
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Publication number: 20230060975Abstract: An image forming apparatus includes: a belt to be transported; an image forming body that forms an image on the belt or a recording medium that is transported by the belt; a moving mechanism that moves the belt in a movement direction extending in a thickness direction of the belt; a rotational member including a rotation shaft extending in the movement direction and a contact portion that is rotatable around the rotation shaft and that is in contact with a side surface of the belt regardless of a position of the belt in the movement direction; an acquirer that acquires a physical amount that changes due to rotation of the contact portion around the rotation shaft when the belt moves in a width direction; and a detector that detects a movement amount of the belt in the width direction based on the physical amount acquired by the acquirer.Type: ApplicationFiled: December 1, 2021Publication date: March 2, 2023Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Ko UMENAI, Satoshi EZAWA
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Patent number: 11592762Abstract: An image forming apparatus includes: an image carrier body to be transported; an image forming unit that forms an image on the image carrier body; a change roller that is in contact with an inner peripheral surface of the image carrier body so as to be rotatable around a rotation axis and that is capable of changing an angle of the rotation axis with respect to a width direction of the image carrier body; a flywheel provided at the change roller; and a driving mechanism that applies a driving force for changing an angle of the rotation axis with respect to the width direction to an applied portion that moves together with the change roller. A direction of the driving force applied to the applied portion by the driving mechanism is opposite to a direction in which the applied portion moves due to gravity acting on the flywheel.Type: GrantFiled: December 9, 2021Date of Patent: February 28, 2023Assignee: FUJIFILM Business Innovation Corp.Inventor: Ko Umenai
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Patent number: 11174876Abstract: A blower includes a fan that sends out air, a guiding member that guides air moving towards the fan or the air sent out by the fan, and a vibration suppressing member that is provided on a side opposite to a side where the guiding member is provided with the fan interposed therebetween, and that reduces vibration of the fan.Type: GrantFiled: August 23, 2018Date of Patent: November 16, 2021Assignee: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Shinya Mitorida, Ko Umenai
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Patent number: 11046098Abstract: A noise reducing structure includes a first resonance tube that extends in a first direction, that takes in from a sound absorbing opening portion a sound wave that is generated from a noise source, and that causes the sound wave to resonate to reduce leakage to outside; and a second resonance tube that extends in a second direction differing from the first direction, and that, along with the first resonance tube, causes the sound wave that is generated from the noise source to resonate to reduce the leakage to the outside.Type: GrantFiled: April 3, 2018Date of Patent: June 29, 2021Assignee: FUJIFILM Business Innovation Corp.Inventors: Ko Umenai, Fuyuki Kokubu, Takayuki Suehiro
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Patent number: 10281876Abstract: A noise reducing structure includes an internal structural body that includes a noise source; an exterior body that includes an inner side surface facing the internal structural body and that covers an outer side of the internal structural body; a space portion that is surrounded by an erected wall, the internal structural body, and the inner side surface, the erected wall being erected so as to, from one of the internal structural body and the inner side surface towards the other of the internal structural body and the inner side surface, be connected to the other of the internal structural body and the inner side surface; and a sound absorbing opening portion that is connected to the space portion and that is formed at a portion near the noise source.Type: GrantFiled: March 8, 2018Date of Patent: May 7, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Ko Umenai, Fuyuki Kokubu, Takayuki Suehiro
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Publication number: 20190113053Abstract: A blower includes a fan that sends out air, a guiding member that guides air moving towards the fan or the air sent out by the fan, and a vibration suppressing member that is provided on a side opposite to a side where the guiding member is provided with the fan interposed therebetween, and that reduces vibration of the fan.Type: ApplicationFiled: August 23, 2018Publication date: April 18, 2019Applicant: FUJI XEROX CO.,LTD.Inventors: Shinya MITORIDA, Ko UMENAI
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Publication number: 20190094799Abstract: A noise reducing structure includes an internal structural body that includes a noise source; an exterior body that includes an inner side surface facing the internal structural body and that covers an outer side of the internal structural body; a space portion that is surrounded by an erected wall, the internal structural body, and the inner side surface, the erected wall being erected so as to, from one of the internal structural body and the inner side surface towards the other of the internal structural body and the inner side surface, be connected to the other of the internal structural body and the inner side surface; and a sound absorbing opening portion that is connected to the space portion and that is formed at a portion near the noise source.Type: ApplicationFiled: March 8, 2018Publication date: March 28, 2019Applicant: FUJI XEROX CO., LTD.Inventors: Ko UMENAI, Fuyuki KOKUBU, Takayuki SUEHIRO
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Publication number: 20190092058Abstract: A noise reducing structure includes a first resonance tube that extends in a first direction, that takes in from a sound absorbing opening portion a sound wave that is generated from a noise source, and that causes the sound wave to resonate to reduce leakage to outside; and a second resonance tube that extends in a second direction differing from the first direction, and that, along with the first resonance tube, causes the sound wave that is generated from the noise source to resonate to reduce the leakage to the outside.Type: ApplicationFiled: April 3, 2018Publication date: March 28, 2019Applicant: FUJI XEROX CO.,LTD.Inventors: Ko UMENAI, Fuyuki KOKUBU, Takayuki SUEHIRO