Patents by Inventor Yu Tsuda
Yu Tsuda 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: 20250110421Abstract: An image forming apparatus is enabled to perform a first operation that forms an image with a first developer of one color transported by a first transport unit and held by a first developer holder that is rotating and a second operation that forms an image with a second developer of another color transported by a second transport unit and held by a second developer holder that is rotating.Type: ApplicationFiled: February 29, 2024Publication date: April 3, 2025Applicant: FUJIFILM Business Innovation Corp.Inventors: Motoki MATSUSHIMA, Yu TSUDA, Yuji KIKUCHI
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Publication number: 20250102948Abstract: An image forming apparatus includes a first image former that, after charging a first image holder, forms an image on the first image holder by attaching a developer onto the first image holder; a second image former that, after charging a second image holder, forms an image on the second image holder by attaching a developer onto the second image holder; and a processor that is configured to set, in accordance with information on at least one of the developer used on the first image former and the developer used on the second image former, a first charging condition of the first image former including a first frequency of the first image former and is configured to set a second charging condition serving as a charging condition of the second image former and including a second frequency different from the first frequency.Type: ApplicationFiled: February 1, 2024Publication date: March 27, 2025Inventor: Yu TSUDA
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Publication number: 20240333729Abstract: A connection destination malignancy determination system connected to the Internet through a network includes: a connection destination observation unit that observes a connection destination; a connection destination malignancy determination unit that determines a malignancy indicating the degree of maliciousness of the connection destination; and a countermeasure priority determination unit that determines a countermeasure priority indicating the degree of preferential countermeasure required based on the malignancy and an observation result of the connection destination.Type: ApplicationFiled: September 20, 2023Publication date: October 3, 2024Inventors: Shota FUJII, Nobutaka KAWAGUCHI, Tomohiro SHIGEMOTO, Takayuki SATOU, Sho AOKI, Masato TERADA, Yu TSUDA
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Publication number: 20240210850Abstract: An image forming apparatus includes multiple image forming units that are arranged in one direction and form images by attaching developers to surfaces of image carriers and transfer the images onto recording media, the image forming units including a first image forming unit that forms an image of a developer of a first color on a surface of a first image carrier and a second image forming unit that is located downstream of the first image forming unit, forms an image of a developer of second color on a surface of a second image carrier and includes a contact member having a tip portion that contacts the surface of the second image carrier after the transferring, wherein the image forming apparatus performs at a predetermined frequency an operation that forms a predetermined image by attaching the developer of the second color to the surface of the second image carrier and causes the predetermined image on the surface of the second image carrier to pass between the surface of the second image carrier after tType: ApplicationFiled: March 6, 2024Publication date: June 27, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Shuhei YAMAZAKI, Yu TSUDA
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Publication number: 20240103424Abstract: A cleaning device, for cleaning an image holding body that rotates while holding a toner image on an outer circumferential surface of the image holding body, includes: a scraping member that scrapes toner sticking to the outer circumferential surface of the image holding body in a rotating state by a distal end of the scraping member being in contact with, in the outer circumferential surface, in a region in which the image holding body moves upward from below; a trapping member in which toner scraped from the outer circumferential surface to fall is trapped; and at least one raising member that raises up toner trapped in the trapping member, toward the distal end of the scraping member.Type: ApplicationFiled: March 9, 2023Publication date: March 28, 2024Applicant: FUJIFILM Business Innovation Corp.Inventor: Yu TSUDA
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Publication number: 20240103425Abstract: A collecting device includes a collecting path for a developer, at least one transport member that is disposed in the collecting path and that transports the developer by rotating, a driving unit that drives, by receiving electric power, the transport member in such a manner that the transport member rotates, a detecting unit that detects a load applied to the driving unit due to transportation of the developer, and a control unit that controls the driving unit based on the load detected by the detecting unit.Type: ApplicationFiled: March 7, 2023Publication date: March 28, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Shinya MAKIURA, Yuji Kikuchi, Yu Tsuda, Yusuke Kitagawa, Shun Ida, Takaki Saiki
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Publication number: 20220263839Abstract: A computer system comprises an analysis module configured to execute dynamic analysis for a sample of a malicious program, and to output an analysis result including a coupling destination to and from which the malicious program communicates; a variation detection module configured to detect variation of the coupling destination based on results of cyclic observation of the coupling destination, and to output a result of the detection; and an information sharing module configured to store information output from the analysis module and information output from the variation detection module in a form that allows sharing among a plurality of external computers.Type: ApplicationFiled: March 5, 2020Publication date: August 18, 2022Inventors: Shota FUJII, Masato TERADA, Takayuki SATOU, Sho AOKI, Tomohiro SHIGEMOTO, Nobutaka KAWAGUCHI, Yu TSUDA, Nobuyuki KANAYA, Shingo YASUDA, Daisuke INOUE
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Patent number: 11029620Abstract: A rotary-body support structure includes: a rotary body including a rotary shaft and a contact portion spirally wound around the rotary shaft; and bearing parts that rotatably support the rotary body. The amount of engagement of the rotary body with a contact body that is in contact with the contact portion of the rotary body changes when the rotary body moves toward one side in a rotation axis direction.Type: GrantFiled: March 12, 2020Date of Patent: June 8, 2021Assignee: FUJI XEROX CO., LTD.Inventor: Yu Tsuda
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Publication number: 20210088927Abstract: A rotary-body support structure includes: a rotary body including a rotary shaft and a contact portion spirally wound around the rotary shaft; and bearing parts that rotatably support the rotary body. The amount of engagement of the rotary body with a contact body that is in contact with the contact portion of the rotary body changes when the rotary body moves toward one side in a rotation axis direction.Type: ApplicationFiled: March 12, 2020Publication date: March 25, 2021Inventor: Yu TSUDA
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Patent number: 10663880Abstract: A charging device includes a housing, a corona wire stretched in the housing, and a positioning member supporting the corona wire and determining a distance between the corona wire and a photoconductor, the positioning member being provided at an end of the housing. The positioning member has a vertex extending in a direction intersecting a corona-wire-stretching direction in which the corona wire is stretched. An elastic member is provided in a gap between the positioning member and the corona wire supported at the vertex, the gap spreading in the corona-wire-stretching direction.Type: GrantFiled: February 14, 2019Date of Patent: May 26, 2020Assignee: FUJI XEROX CO., LTD.Inventor: Yu Tsuda
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Publication number: 20200096894Abstract: A charging device includes a housing, a corona wire stretched in the housing, and a positioning member supporting the corona wire and determining a distance between the corona wire and a photoconductor, the positioning member being provided at an end of the housing. The positioning member has a vertex extending in a direction intersecting a corona-wire-stretching direction in which the corona wire is stretched. An elastic member is provided in a gap between the positioning member and the corona wire supported at the vertex, the gap spreading in the corona-wire-stretching direction.Type: ApplicationFiled: February 14, 2019Publication date: March 26, 2020Applicant: FUJI XEROX CO., LTD.Inventor: Yu Tsuda
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Patent number: 9996036Abstract: Provided is an image forming apparatus including an image holding member that has an outer circumferential surface in which a radius length from a center in the image holding member varies to be the longest N times and the shortest N times during one rotation of the image holding member wherein N is an integer of 2 or more, and that holds a latent image while being rotated, a developing member that develops the latent image of the image holding member with a developer, a rotation unit that rotates the developing member by a number of an integer multiple of the N during the one rotation of the image holding member, and an output unit that outputs a developer image of the image holding member to a recording medium.Type: GrantFiled: February 10, 2017Date of Patent: June 12, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Yasutomo Ishii, Yu Tsuda, Shigemi Murata
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Publication number: 20180088504Abstract: Provided is an image forming apparatus including an image holding member that has an outer circumferential surface in which a radius length from a center in the image holding member varies to be the longest N times and the shortest N times during one rotation of the image holding member wherein N is an integer of 2 or more, and that holds a latent image while being rotated, a developing member that develops the latent image of the image holding member with a developer, a rotation unit that rotates the developing member by a number of an integer multiple of the N during the one rotation of the image holding member, and an output unit that outputs a developer image of the image holding member to a recording medium.Type: ApplicationFiled: February 10, 2017Publication date: March 29, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Yasutomo ISHII, Yu TSUDA, Shigemi MURATA
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Patent number: 9869968Abstract: There is provided blowing tube. A plurality of flow control members are provided in portions of a passage space of a passage portion which are positioned at different positions in an airflow direction, and control a flow of air. One of the flow control members is provided as a downstream-most flow control member such that the outlet port is blocked by a multi-hole member having a plurality of air holes. Each of the air holes of the downstream-most flow control member is configured as a through hole such that the opening area of the through hole decreases continuously or in a stepwisely toward the downstream side in an air passing direction.Type: GrantFiled: August 12, 2016Date of Patent: January 16, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Yuki Nagamori, Yasunori Momomura, Masafumi Kudo, Yu Tsuda, Yasunori Unagida, Mihoko Tanaka
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Patent number: 9857737Abstract: An image forming apparatus includes an image forming unit that forms a first image and a second image and transfers the first and second images to a recording medium, the first image including a metallic color image, the second image not including the metallic color image; and a fixing unit that fixes the first image and the second image to the recording medium. The image forming apparatus has a mode in which, when forming the first image on only one of a first surface and a second surface of the recording medium, the image forming unit transfers the first image to the first surface of the recording medium and the fixing unit fixes the first image to the first surface, and subsequently the image forming unit transfers the second image to the second surface of the recording medium and the fixing unit fixes the second image to the second surface.Type: GrantFiled: February 12, 2016Date of Patent: January 2, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Yasunori Unagida, Yu Tsuda
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Patent number: 9841717Abstract: A cleaning device includes a rotating brush that supplies lubricant to a surface of an image carrying member on which an end toner image is formed at a first axial end, a cleaning member provided on a downstream side of the rotating brush in a direction of rotation of the image carrying member and that cleans the image carrying member by scraping toner from the surface of the image carrying member, a storing portion that stores the toner scraped by the cleaning member, a transporting member that transports the toner in the storing portion from the first axial end of the image carrying member toward a second axial end of the image carrying member, and a moving member that moves the toner in the storing portion toward the rotating brush.Type: GrantFiled: August 2, 2016Date of Patent: December 12, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Yuji Kikuchi, Yu Tsuda, Yasunori Unagida, Kanji Watanabe
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Patent number: 9835999Abstract: An image forming apparatus includes a photosensitive member having first and second areas at different positions at an axial end of the photosensitive member, the first and second areas not overlapping an image area in an axial direction of the photosensitive member; a detecting unit that detects an image; and a forming unit that forms a transfer-object image in the image area, the transfer-object image being transferred to a transfer area of continuous-form paper, the forming unit further forming first and second images in the first and second areas of the photosensitive member, respectively, the first image not being transferred to the transfer area but being detected by the detecting unit for use in an operation of controlling conditions for image formation, the second image not being transferred to the transfer area and not being used in the operation of controlling the conditions for image formation.Type: GrantFiled: May 27, 2016Date of Patent: December 5, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Yu Tsuda, Yasunori Unagida, Kanji Watanabe, Yuji Kikuchi
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Patent number: 9829821Abstract: An image forming apparatus includes a first image forming unit that forms a transparent toner image by using a transparent toner, a second image forming unit that forms a metal-colored toner image by using a metal-colored toner containing a flat metallic pigment, and a fixing device that fixes a toner image to a recording medium as a result of a heating member contacting and heating the toner image. The image forming apparatus has a mode in which the transparent toner image is superimposed upon the metal-colored toner image, and the toner images are fixed by the fixing device.Type: GrantFiled: February 8, 2016Date of Patent: November 28, 2017Assignee: FUJI XEROX CO., LTD.Inventor: Yu Tsuda
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Patent number: 9804534Abstract: An image forming apparatus includes a photosensitive member that includes a photosensitive layer, the photosensitive layer being thicker at a first axial end of the photosensitive member than at a second axial end of the photosensitive member; and a forming unit that forms a first image and a second image on the photosensitive member, the first image being transferred to each of transfer areas defined on continuous-form paper, the second image being transferred to the first axial end but to neither a position between adjacent ones of the transfer areas that are side by side in a longitudinal direction of the continuous-form paper nor a position in any of the transfer areas.Type: GrantFiled: July 12, 2016Date of Patent: October 31, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Yu Tsuda, Yasunori Unagida, Kanji Watanabe, Yuji Kikuchi
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Publication number: 20170277121Abstract: There is provided blowing tube. A plurality of flow control members are provided in portions of a passage space of a passage portion which are positioned at different positions in an airflow direction, and control a flow of air. One of the flow control members is provided as a downstream-most flow control member such that the outlet port is blocked by a multi-hole member having a plurality of air holes. Each of the air holes of the downstream-most flow control member is configured as a through hole such that the opening area of the through hole decreases continuously or in a stepwisely toward the downstream side in an air passing direction.Type: ApplicationFiled: August 12, 2016Publication date: September 28, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Yuki NAGAMORI, Yasunori MOMOMURA, Masafumi KUDO, Yu TSUDA, Yasunori UNAGIDA, Mihoko TANAKA