Patents by Inventor Seiji Taira
Seiji Taira 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: 20220113667Abstract: A decurling device includes: a pair of decurling units configured to correct curl of a recording medium by sandwiching the recording medium; a switching unit configured to switch the pair of decurling units between a first state in which a pressure contact force is relatively large and a second state in which the pressure contact force is smaller than that in the first state; a release unit configured to release a pressure contact between the pair of decurling units; and a restricting unit configured to restrict release of the pressure contact between the pair of decurling units when the pair of decurling units are in the first state.Type: ApplicationFiled: May 21, 2021Publication date: April 14, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Shingo AKIYAMA, Hiroaki OKUMA, Masakatsu EDA, Seiji TAIRA
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Patent number: 11279147Abstract: A decurling device includes: a first transporter including a transport roller, the first transporter that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transporter including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transporter includes an abutting member disposed inside the belt, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction.Type: GrantFiled: July 16, 2020Date of Patent: March 22, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Shingo Akiyama, Nobuyoshi Komatsu, Shogo Kamiya, Seiji Taira
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Patent number: 11249433Abstract: A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller.Type: GrantFiled: August 4, 2020Date of Patent: February 15, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Nobuyoshi Komatsu, Shingo Akiyama, Shogo Kamiya, Seiji Taira
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Publication number: 20210302896Abstract: A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller.Type: ApplicationFiled: August 4, 2020Publication date: September 30, 2021Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Nobuyoshi Komatsu, Shingo Akiyama, Shogo Kamiya, Seiji Taira
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Publication number: 20210300066Abstract: A decurling device includes: a first transporter including a transport roller, the first transporter that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transporter including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transporter includes an abutting member disposed inside the belt, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction.Type: ApplicationFiled: July 16, 2020Publication date: September 30, 2021Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Shingo AKIYAMA, Nobuyoshi KOMATSU, Shogo KAMIYA, Seiji TAIRA
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Patent number: 9864308Abstract: There is provided an image forming apparatus. A transferring unit transports a recording medium while transferring an image onto the recording medium by a transfer voltage being applied thereto. A fixing member fixes the transferred image onto the recording medium. A conductive member forms a nip portion in which the recording medium is nipped between the fixing member and the conductive member and has a conductive property. A guiding unit is disposed between the transferring unit and the nip portion, guides a leading end of the recording medium which is being transported by the transferring unit to the nip portion, and has a conductive property. An applying unit applies, to the transferring unit, a transfer voltage which is higher than that applied before the recording medium is put into the nip portion, after the recording medium transported by the transferring unit is put into the nip portion.Type: GrantFiled: August 25, 2016Date of Patent: January 9, 2018Assignee: FUJI XEROX CO., LTD.Inventor: Seiji Taira
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Publication number: 20170192376Abstract: There is provided an image forming apparatus. A transferring unit transports a recording medium while transferring an image onto the recording medium by a transfer voltage being applied thereto. A fixing member fixes the transferred image onto the recording medium. A conductive member forms a nip portion in which the recording medium is nipped between the fixing member and the conductive member and has a conductive property. A guiding unit is disposed between the transferring unit and the nip portion, guides a leading end of the recording medium which is being transported by the transferring unit to the nip portion, and has a conductive property. An applying unit applies, to the transferring unit, a transfer voltage which is higher than that applied before the recording medium is put into the nip portion, after the recording medium transported by the transferring unit is put into the nip portion.Type: ApplicationFiled: August 25, 2016Publication date: July 6, 2017Applicant: FUJI XEROX CO., LTD.Inventor: Seiji TAIRA
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Publication number: 20130266350Abstract: An image forming apparatus includes a fixing unit having a fixing member fixing a toner image onto a recording medium and a fixation pressing member coming into pressure contact with the fixing member to form a fixation pressing area, through which the recording medium passes, between the two members; a transport unit transporting the recording medium output from the fixing unit; and a guide unit disposed between the fixing and transport units and having a substantially arc-shaped transport path along which the output recording medium is guided and transported toward the transport unit. The guide unit has a substantially rib-shaped guide extending along the transport path and coming into contact with the recording medium at a predetermined position of the guide to guide the recording medium, and a recess provided downstream, in a recording-medium transport direction, of the predetermined position and recessed inward from the substantially arc-shaped transport path.Type: ApplicationFiled: December 5, 2012Publication date: October 10, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Masaki NAGATA, Seiji TAIRA, Tomofumi SUZUKI
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Patent number: 7429995Abstract: An image forming apparatus includes a recording material transporting path that extends in a direction from below upward and that transports a recording material, a fixing device provided on the way of the recording material transporting path, the fixing device having a rotatable heating member that has a heating source provided inside thereof and a rotatable pressure member that forms a fixing nip in pressure contact with the heating member, and a detaching member that contacts the heating member in the vicinity at a downstream side of the of the fixing nip in the rotation direction of the heating member and detaches the recording material from the heating member. The detachment member has a detachment guide surface extending from a contact point with the heating member, and a tilt of the detachment guide surface toward the pressure member side in relation with a vertical line including the contact point is not more than 2.5°.Type: GrantFiled: May 25, 2005Date of Patent: September 30, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Keiichiro Sato, Kenji Hara, Yumiko Onuma, Yoshiaki Tainaka, Seiji Taira, Noriyuki Miyoshi, Keita Yano, Masakatsu Eda, Tomofumi Suzuki, Keiji Miba
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Patent number: 7299000Abstract: An image forming apparatus includes a recording material transporting path that extends in a direction from bottom to top of a body of the image forming apparatus and transports a recording material, a fixing device provided on the recording material transporting path, which includes a rotatable heating member that has an internal heat source and a rotatable pressure member that forms a nip area with the heating member by being located in contact with and pressed against the heating member, to nip the recording material for carrying out a fixing process, and an ejection guide member that guides a recording material ejected from the nip area to the outside of the image forming apparatus. The ejection guide member has a guide surface formed to intersect a tangent line of the heating member at the most downstream point of the nip area, and the guide surface intersects the tangent line at an obtuse angle.Type: GrantFiled: May 2, 2005Date of Patent: November 20, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Seiji Taira, Kenji Hara, Keiji Miba, Yoshiaki Tainaka, Yumiko Onuma, Keiichiro Sato, Noriyuki Miyoshi, Masakatsu Eda, Keita Yano, Tomofumi Suzuki
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Publication number: 20060092258Abstract: An image forming apparatus includes a recording material transporting path that extends in a direction from bottom to top of a body of the image forming apparatus and transports a recording material, a fixing device provided on the recording material transporting path, which includes a rotatable heating member that has an internal heat source and a rotatable pressure member that forms a nip area with the heating member by being located in contact with and pressed against the heating member, to nip the recording material for carrying out a fixing process, and an ejection guide member that guides a recording material ejected from the nip area to the outside of the image forming apparatus. The ejection guide member has a guide surface formed to intersect a tangent line of the heating member at the most downstream point of the nip area, and the guide surface intersects the tangent line at an obtuse angle.Type: ApplicationFiled: May 2, 2005Publication date: May 4, 2006Inventors: Seiji Taira, Kenji Hara, Keiji Miba, Yoshiaki Tainaka, Yumiko Onuma, Keiichiro Sato, Noriyuki Miyoshi, Masakatsu Eda, Keita Yano, Tomofumi Suzuki
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Publication number: 20060092259Abstract: An image forming apparatus includes a recording material transporting path that extends in a direction from below upward and that transports a recording material, a fixing device provided on the way of the recording material transporting path, the fixing device having a rotatable heating member that has a heating source provided inside thereof and a rotatable pressure member that forms a fixing nip in pressure contact with the heating member, and a detaching member that contacts the heating member in the vicinity at a downstream side of the of the fixing nip in the rotation direction of the heating member and detaches the recording material from the heating member. The detachment member has a detachment guide surface extending from a contact point with the heating member, and a tilt of the detachment guide surface toward the pressure member side in relation with a vertical line including the contact point is not more than 2.5°.Type: ApplicationFiled: May 25, 2005Publication date: May 4, 2006Inventors: Keiichiro Sato, Kenji Hara, Yumiko Onuma, Yoshiaki Tainaka, Seiji Taira, Noriyuki Miyoshi, Keita Yano, Masakatsu Eda, Tomofumi Suzuki, Keiji Miba