Patents by Inventor Yasuto Okabayashi
Yasuto Okabayashi 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: 10401722Abstract: An image forming apparatus includes an image forming unit that forms an image on a recording medium according to image data, and an adjusting unit that adjusts the image around a cut when the recording medium has the cut.Type: GrantFiled: February 23, 2018Date of Patent: September 3, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Kojiro Tsutsumi, Yasuto Okabayashi
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Patent number: 10261459Abstract: An image forming apparatus includes a transfer unit, a container, and a calculator. The transfer unit transfers to at least one recording medium at least one toner image formed in accordance with image data without margins set along edges of the at least one recording medium. The container contains toner collected from the transfer unit. The calculator calculates an amount of the toner of parts of the at least one toner image outside the edges of the at least one recording medium. A time period during which the container is able to be used is calculated in accordance with an accumulated amount of the toner calculated by the calculator.Type: GrantFiled: May 31, 2017Date of Patent: April 16, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Masahiro Katahira, Yoshinori Takahashi, Yasuto Okabayashi
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Publication number: 20180364556Abstract: An image forming apparatus includes an image forming unit that forms an image on a recording medium according to image data, and an adjusting unit that adjusts the image around a cut when the recording medium has the cut.Type: ApplicationFiled: February 23, 2018Publication date: December 20, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Kojiro TSUTSUMI, Yasuto OKABAYASHI
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Publication number: 20180143575Abstract: An image forming apparatus includes a transfer unit, a container, and a calculator. The transfer unit transfers to at least one recording medium at least one toner image formed in accordance with image data without margins set along edges of the at least one recording medium. The container contains toner collected from the transfer unit. The calculator calculates an amount of the toner of parts of the at least one toner image outside the edges of the at least one recording medium. A time period during which the container is able to be used is calculated in accordance with an accumulated amount of the toner calculated by the calculator.Type: ApplicationFiled: May 31, 2017Publication date: May 24, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Masahiro KATAHIRA, Yoshinori TAKAHASHI, Yasuto OKABAYASHI
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Publication number: 20170176893Abstract: An image forming apparatus includes an image forming device and a controller. The image forming device forms toner images on an image holding member and transfers the toner images to recording media. When images to be transferred to the recording media are borderless images and the toner images are continuously formed on the respective recording media, the controller extends an image forming pitch compared to the image forming pitch used in a case where images transferred to the recording media are not borderless images.Type: ApplicationFiled: May 12, 2016Publication date: June 22, 2017Applicant: FUJI XEROX CO., LTD.Inventor: Yasuto OKABAYASHI
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Patent number: 9612558Abstract: An image forming apparatus includes an image forming device, an area coverage calculation section, and an image data rotating section. The image forming device forms a toner image in accordance with image data without setting margins at edges of a first recording medium. The area coverage calculation section calculates an area coverage of the image data for a certain region at each of the edges of the first recording medium. The image data rotating section rotates the image data by a certain angle, when the calculated area coverage at one of the edges is a certain value or more, so that the one of the edges is not on a leading edge side of the first recording medium in a transport direction.Type: GrantFiled: April 27, 2016Date of Patent: April 4, 2017Assignee: FUJI XEROX CO., LTD.Inventor: Yasuto Okabayashi
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Patent number: 9389543Abstract: An image forming apparatus includes a toner-image forming part that forms a toner image; a first transfer part that transfers the toner image to an intermediate transfer body; a second transfer part that contacts a back surface of a recording medium to transfer the toner image on the intermediate transfer body to the recording medium; and a fixing part including a fixing member that is heated to fix the toner image to the recording medium and a pressure member that transports the recording medium in cooperation with the fixing member by pinching the recording medium therebetween. The maximum width, in the axial direction, of the second transfer part in which it is capable of transferring the toner image to the recording medium is larger than the maximum width, in the axial direction, of the fixing member in which it is capable of fixing the toner image to the recording medium.Type: GrantFiled: April 30, 2015Date of Patent: July 12, 2016Assignee: FUJI XEROX CO., LTD.Inventor: Yasuto Okabayashi
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Publication number: 20160170334Abstract: An image forming apparatus includes a toner-image forming part that forms a toner image; a first transfer part that transfers the toner image to an intermediate transfer body; a second transfer part that contacts a back surface of a recording medium to transfer the toner image on the intermediate transfer body to the recording medium; and a fixing part including a fixing member that is heated to fix the toner image to the recording medium and a pressure member that transports the recording medium in cooperation with the fixing member by pinching the recording medium therebetween. The maximum width, in the axial direction, of the second transfer part in which it is capable of transferring the toner image to the recording medium is larger than the maximum width, in the axial direction, of the fixing member in which it is capable of fixing the toner image to the recording medium.Type: ApplicationFiled: April 30, 2015Publication date: June 16, 2016Inventor: Yasuto OKABAYASHI
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Patent number: 9298153Abstract: A decurling device includes a shaft; a decurling roller that has a diameter larger than that of the shaft, that becomes concave along an outer periphery of the shaft by being pressed against the shaft, and that removes curl from a transported object by nipping the transported object between the decurling roller and the shaft; and a restriction unit that restricts a direction in which the shaft is bent due to a load that the shaft receives from the decurling roller so that a middle portion of the shaft in an axial direction is convexly curved downstream in a transport direction of the transported object.Type: GrantFiled: February 9, 2015Date of Patent: March 29, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Satoshi Nakamura, Yasuto Okabayashi, Masakatsu Eda
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Patent number: 9244403Abstract: A fixing device includes a heating member heating a recording medium to fix a developer image thereto; an endless heating belt rotatably wrapped around the heating member and heating the medium; a rotating member around which the belt is wrapped and having a fixed first axial end; a position detecting unit detecting a position of the belt when moved in first and second opposite directions parallel to an axial direction of the rotating member; and a controller controlling a rotational movement angle by which a second axial end of the rotating member is rotationally moved about the first end in an axis-intersecting direction based on information from the position detecting unit when the belt is moved in the first and second directions so that first and second speeds for respectively moving the belt in the first and second directions are made equal to or close to each other.Type: GrantFiled: November 29, 2012Date of Patent: January 26, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Yoshihiro Hayashi, Yasuto Okabayashi, Toshiyuki Miyata
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Patent number: 9213282Abstract: A fixing device includes a fixing rotary body that heats and pressurizes, together with a recording medium, toner having particle diameter of 4.5 [?m] or less and a softening point of 100 [° C.] or higher and 125 [° C.] or lower to fix the toner on the recording medium, a heating unit that heats the fixing rotary body, and a pressurizing unit that sandwiches and pressurizes the toner and the recording medium in a contact part formed by the fixing rotary body, wherein the maximum pressure in the contact part is equal to or more than 2.9×105 [Pa], the width of the contact part in a movement direction of the recording medium is equal to or more than 10 [mm], and the heating time of the toner in the contact part is equal to or more than 20 [msec].Type: GrantFiled: March 26, 2013Date of Patent: December 15, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yasuto Okabayashi, Masataka Konishi, Atsumi Kurita, Akihiro Iizuka
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Patent number: 9213284Abstract: An image forming apparatus includes a transport unit that transports plural recording media having developer images transferred thereon, at an interval; a fixing unit that fixes the developer images to the recording media transported by the transport unit, by applying heat; a temperature measuring unit that measures an ambient temperature; a speed changing unit that decreases a fixing speed of the developer images in the fixing unit if the ambient temperature measured by the temperature measuring unit is a preset temperature or lower, as compared with the fixing speed if the ambient temperature is higher than the preset temperature; and an interval changing unit that decreases the interval if the ambient temperature is the preset temperature or lower, as compared with the interval if the ambient temperature is higher than the preset temperature.Type: GrantFiled: July 11, 2014Date of Patent: December 15, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yasuto Okabayashi, Yoshihiro Hayashi, Toshiyuki Miyata, Satoshi Nakamura, Yuhei Tomita
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Patent number: 9164442Abstract: A fixing device includes an endless belt member, a secured member disposed to contact the belt member, a heating unit that heats the belt member, and a rotary pressurizing roller including an elastic layer that is elastically deformed when the belt member is pressed against a pressing surface of the secured member to form a fixing part. The pressurizing roller is curved such that a center portion is smaller in outside diameter than end portions along the axial direction. The pressing surface is curved such that a center portion projects toward the pressurizing roller more than end portions along the longitudinal direction. On the pressing surface, an amount of projection of the center portion with respect to the end portions along the longitudinal direction is set to be larger on an output side than on an input side of the fixing part along a moving direction of the belt member.Type: GrantFiled: August 20, 2013Date of Patent: October 20, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yasuto Okabayashi, Satoshi Nakamura, Junpei Amano, Norimasa Fujiwara, Koichi Kimura, Shogo Kamiya, Toshinori Sasaki, Takahito Chiba, Masataka Konishi
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Publication number: 20150277317Abstract: An image forming apparatus includes a transport unit that transports plural recording media having developer images transferred thereon, at an interval; a fixing unit that fixes the developer images to the recording media transported by the transport unit, by applying heat; a temperature measuring unit that measures an ambient temperature; a speed changing unit that decreases a fixing speed of the developer images in the fixing unit if the ambient temperature measured by the temperature measuring unit is a preset temperature or lower, as compared with the fixing speed if the ambient temperature is higher than the preset temperature; and an interval changing unit that decreases the interval if the ambient temperature is the preset temperature or lower, as compared with the interval if the ambient temperature is higher than the preset temperature.Type: ApplicationFiled: July 11, 2014Publication date: October 1, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Yasuto OKABAYASHI, Yoshihiro HAYASHI, Toshiyuki MIYATA, Satoshi NAKAMURA, Yuhei TOMITA
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Publication number: 20150268612Abstract: A decurling device includes a shaft; a decurling roller that has a diameter larger than that of the shaft, that becomes concave along an outer periphery of the shaft by being pressed against the shaft, and that removes curl from a transported object by nipping the transported object between the decurling roller and the shaft; and a restriction unit that restricts a direction in which the shaft is bent due to a load that the shaft receives from the decurling roller so that a middle portion of the shaft in an axial direction is convexly curved downstream in a transport direction of the transported object.Type: ApplicationFiled: February 9, 2015Publication date: September 24, 2015Inventors: Satoshi NAKAMURA, Yasuto OKABAYASHI, Masakatsu EDA
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Patent number: 9104144Abstract: A fixing device includes a fixing rotary body that heats toner while rotating and fixes the toner on a recording medium, a pressurizing rotary body that sandwiches and pressurizes the toner and the recording medium by the fixing rotary body, and a supporting part that supports the fixing rotary body from the inside so that a peak pressure on an outlet side of the recording medium becomes equal to or lower than a peak pressure on an inlet side, in a contact part where the fixing rotary body and the pressurizing rotary body come into contact with each other.Type: GrantFiled: March 29, 2013Date of Patent: August 11, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yasuto Okabayashi, Toshiyuki Miyata, Satoshi Nakamura
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Patent number: 9104145Abstract: A fixing device includes a heating member that heats a toner image on a recording medium and includes a rotatable belt member, a heat source, a pressing member, a sliding sheet, and a pressure-applying member. The pressing member presses the belt member against the pressure-applying member. A surface of the pressing member that opposes the belt member includes a flat portion or a recessed portion having a radius of curvature of approximately 100 mm or more. The sliding sheet is disposed between the belt member and the pressing member and includes a sliding layer containing cross-linked polytetrafluoroethylene, the content of which in resin contained in the layer is approximately 25 mass % or more and approximately 75 mass % or less. The pressure-applying member presses the recording medium against the belt member and rotates to transport the recording medium while nipping it between itself and the belt member.Type: GrantFiled: December 20, 2013Date of Patent: August 11, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yasuto Okabayashi, Kenji Omori, Toshiyuki Miyata
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Publication number: 20140341621Abstract: An image fixing device includes a first rotating body, a second rotating body, a pressing member, a sheet member, and a lubricant. The second rotating body is disposed in contact with an outer surface of the first rotating body. The pressing member is disposed within the second rotating body and presses the second rotating body toward the first rotating body from an inner surface of the second rotating body. The sheet member is disposed between the second rotating body and the pressing member and has a slide layer containing cross-linked polytetrafluoroethylene resin. The lubricant is interposed between the second rotating body and the sheet member and contains amino-modified silicone oil and terminal-modified perfluoropolyether.Type: ApplicationFiled: December 17, 2013Publication date: November 20, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Kenji OMORI, Yasuto OKABAYASHI, Satoshi MIZOGUCHI
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Publication number: 20140341622Abstract: A fixing device includes a heating member that heats a toner image on a recording medium and includes a rotatable belt member, a heat source, a pressing member, a sliding sheet, and a pressure-applying member. The pressing member presses the belt member against the pressure-applying member. A surface of the pressing member that opposes the belt member includes a flat portion or a recessed portion having a radius of curvature of approximately 100 mm or more. The sliding sheet is disposed between the belt member and the pressing member and includes a sliding layer containing cross-linked polytetrafluoroethylene, the content of which in resin contained in the layer is approximately 25 mass % or more and approximately 75 mass % or less. The pressure-applying member presses the recording medium against the belt member and rotates to transport the recording medium while nipping it between itself and the belt member.Type: ApplicationFiled: December 20, 2013Publication date: November 20, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Yasuto OKABAYASHI, Kenji OMORI, Toshiyuki MIYATA
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Patent number: 8879932Abstract: An image forming apparatus includes image forming units forming toner images with first toners having different colors and a second toner having a different softening point from the first toners, an image transfer unit superposing the toner images one on top of another and transferring the superposed toner images onto a recording medium at least such that the toner image formed of the second toner is at the top of the superposed toner images, an image fixing unit fixing the transferred toner images, and an image controller that causes the image forming unit that uses the second toner to form the toner image over at least part of an image area and also causes the image transfer unit to perform the transfer such that the toner image formed of the second toner is at the top of the superposed toner images in the at least part of the image area.Type: GrantFiled: February 15, 2012Date of Patent: November 4, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuto Okabayashi, Masataka Konishi, Shigeo Ohno, Yoshihiro Hayashi, Masafumi Okabe