Patents by Inventor Yoshihisa Nakao
Yoshihisa Nakao 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: 8774651Abstract: An image forming apparatus includes an image forming unit that forms an image to be formed on a recording medium. The image formed by the image forming unit has a size larger than a size of the recording medium that is transported, the image forming unit causing the image to adhere to the entire area of the recording medium. A width of the image in a direction substantially orthogonal to a transporting direction of the recording medium increases from a front end toward a rear end of the recording medium in the transporting direction of the recording medium.Type: GrantFiled: September 14, 2012Date of Patent: July 8, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Ayaka Miyoshi, Hirofumi Goto, Yoshihisa Nakao, Akihiro Ouchi, Hiroaki Yagi, Kenji Suzuki, Hibiki Sasaki
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Patent number: 8571453Abstract: An image forming apparatus includes a toner image forming unit that forms a toner image, a transfer unit that transfers the toner image onto a recording material, a fixing unit that fixes the toner image to the recording material, a transport unit that includes a rotary member that transports the recording material from the transfer unit to the fixing unit and a recording material guiding portion that has first protruding portions extending along a recording material transport direction, and a charge eliminating unit that is disposed between the transfer unit and transport unit and eliminates charge on the recording material. The charge eliminating unit includes a first charge eliminating portion having pointed projections, and a second charge eliminating portion that is disposed on a downstream side of the first charge eliminating portion in the recording material transport direction and is disposed to be out of contact with the recording material.Type: GrantFiled: April 28, 2011Date of Patent: October 29, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihiro Enomoto, Yoshihisa Nakao, Kiyotoshi Kaneyama
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Patent number: 8554120Abstract: An image forming apparatus includes a transfer member onto a front side of which an image is transferred, a rotary member around which the transfer member is wrapped, a guide member provided at an end portion of an axial direction of the rotary member, a regulating member, a first reference mark, a second reference mark, a first detector, a second detector, and a controller. The regulating member is located on a reverse side of the transfer member, and restricts skew of the transfer member by contacting the guide member. The first and second reference marks are on edge sides of the transfer member in the axial direction of the rotary member. The first and second detectors detect the first and second reference marks, respectively. The controller controls alignment of the image on the transfer member in accordance with a detection result of the first and second detectors.Type: GrantFiled: April 18, 2011Date of Patent: October 8, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihisa Nakao, Yoshihiro Enomoto, Katsunori Kikuchihara, Katsuya Takenouchi, Yoshiya Mashimo, Hiroyuki Koide, Masatoshi Yamada, Kazuyuki Yagata, Kiyotoshi Kaneyama, Kenji Suzuki
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Publication number: 20130195481Abstract: An image forming apparatus includes an image forming unit that forms an image to be formed on a recording medium. The image formed by the image forming unit has a size larger than a size of the recording medium that is transported, the image forming unit causing the image to adhere to the entire area of the recording medium. A width of the image in a direction substantially orthogonal to a transporting direction of the recording medium increases from a front end toward a rear end of the recording medium in the transporting direction of the recording medium.Type: ApplicationFiled: September 14, 2012Publication date: August 1, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Ayaka MIYOSHI, Hirofumi GOTO, Yoshihisa NAKAO, Akihiro OUCHI, Hiroaki YAGI, Kenji SUZUKI, Hibiki SASAKI
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Publication number: 20130189001Abstract: An intermediate transfer device includes an intermediate transfer member, intermediate transfer member support members, and two frame members each including first and second positioning members each having a positioning portion. At least one of the frame members satisfies a condition L1:L2=2.85:x 0?x?1, where L1 is the length of a line segment connecting an intersection point to the positioning portion of one of the positioning members on a side opposite to a side toward which a line of action of a force applied by a second-transfer unit is inclined and L2 is the length of a line segment connecting the intersection point to the positioning portion of the other of the positioning members on the side toward which the line of action is inclined, the intersection point being an intersection of the line of action and a line segment connecting the positioning portions.Type: ApplicationFiled: August 21, 2012Publication date: July 25, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Hibiki SASAKI, Akihiro OUCHI, Hirofumi GOTO, Hiroaki YAGI, Kenji SUZUKI, Yoshihisa NAKAO, Ayaka MIYOSHI
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Publication number: 20130058671Abstract: An image forming apparatus includes an image holding member, a transfer unit, a current detector, and a constant voltage controller. A toner image is held on the image holding member. The transfer unit transfers the toner image held on the image holding member onto a recording medium. The current detector detects a transfer current passed to the transfer unit. When images are to be successively formed on recording media, the constant voltage controller performs constant voltage control on a transfer voltage to be applied to the transfer unit when a first image is to be formed, and performs constant voltage control on a transfer voltage to be applied to the transfer unit when a second image is to be formed, using a voltage value corresponding to a current value detected by the current detector when the first image is to be formed.Type: ApplicationFiled: February 21, 2012Publication date: March 7, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Ayaka MIYOSHI, Yoshihisa NAKAO
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Patent number: 8385770Abstract: There is provided a developer recovery device including: a casing; a recovery member disposed along an edge portion of the aperture portion; a sealing member disposed along an edge portion at a conveyance direction upstream side of the aperture portion; a moving section that moves the recovery member and the sealing member between a position of being touched against the developer-bearing member and a position of being apart from the developer-bearing member; a suction section that sucks the developer separated from the developer-bearing member into the casing; and a filter that is long in the length direction of the aperture portion and that is disposed in the casing between the aperture portion and the suction section with an inclination such that a lower portion of the filter is further away from the aperture portion than an upper portion of the filter.Type: GrantFiled: November 22, 2010Date of Patent: February 26, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Masatoshi Yamada, Yoshihiro Enomoto, Katsuya Takenouchi, Katsunori Kikuchihara, Yoshihisa Nakao, Kazuyuki Yagata, Kiyotoshi Kaneyama, Kenji Suzuki
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Publication number: 20130039673Abstract: An image forming apparatus includes an image holding member, a transfer unit, a fixing unit, a transport unit, a transfer-performance-detection toner image forming unit, a density detection unit, and a selector. A toner image is held on the image holding member. The transfer unit transfers the toner image onto a recording medium. The fixing unit fixes the toner image onto the recording medium. The transport unit reverses the recording medium onto which the toner image has been fixed, and transports the reversed recording medium back to the transfer unit. The transfer-performance-detection toner image forming unit forms plural transfer-performance-detection toner images with different transfer settings of the transfer unit. The density detection unit detects densities of plural transfer-performance-detection toner images. The selector selects a transfer setting of the transfer unit in accordance with a detection result obtained by the density detection unit.Type: ApplicationFiled: February 27, 2012Publication date: February 14, 2013Applicant: FUJI XEROX CO., LTD.Inventor: Yoshihisa NAKAO
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Publication number: 20120114395Abstract: An image forming apparatus includes a transfer member onto a front side of which an image is transferred, a rotary member around which the transfer member is wrapped, a guide member provided at an end portion of an axial direction of the rotary member, a regulating member, a first reference mark, a second reference mark, a first detector, a second detector, and a controller. The regulating member is located on a reverse side of the transfer member, and restricts skew of the transfer member by contacting the guide member. The first and second reference marks are on edge sides of the transfer member in the axial direction of the rotary member. The first and second detectors detect the first and second reference marks, respectively. The controller controls alignment of the image on the transfer member in accordance with a detection result of the first and second detectors.Type: ApplicationFiled: April 18, 2011Publication date: May 10, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Yoshihisa Nakao, Yoshihiro Enomoto, Katsunori Kikuchihara, Katsuya Takenouchi, Yoshiya Mashimo, Hiroyuki Koide, Masatoshi Yamada, Kazuyuki Yagata, Kiyotoshi Kaneyama, Kenji Suzuki
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Publication number: 20120114399Abstract: An image forming apparatus includes a toner image forming unit that forms a toner image, a transfer unit that transfers the toner image onto a recording material, a fixing unit that fixes the toner image to the recording material, a transport unit that includes a rotary member that transports the recording material from the transfer unit to the fixing unit and a recording material guiding portion that has first protruding portions extending along a recording material transport direction, and a charge eliminating unit that is disposed between the transfer unit and transport unit and eliminates charge on the recording material. The charge eliminating unit includes a first charge eliminating portion having pointed projections, and a second charge eliminating portion that is disposed on a downstream side of the first charge eliminating portion in the recording material transport direction and is disposed to be out of contact with the recording material.Type: ApplicationFiled: April 28, 2011Publication date: May 10, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Yoshihiro ENOMOTO, Yoshihisa NAKAO, Kiyotoshi KANEYAMA
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Publication number: 20110236053Abstract: There is provided a developer recovery device including: a casing; a recovery member disposed along an edge portion of the aperture portion; a sealing member disposed along an edge portion at a conveyance direction upstream side of the aperture portion; a moving section that moves the recovery member and the sealing member between a position of being touched against the developer-bearing member and a position of being apart from the developer-bearing member; a suction section that sucks the developer separated from the developer-bearing member into the casing; and a filter that is long in the length direction of the aperture portion and that is disposed in the casing between the aperture portion and the suction section with an inclination such that a lower portion of the filter is further away from the aperture portion than an upper portion of the filter.Type: ApplicationFiled: November 22, 2010Publication date: September 29, 2011Inventors: Masatoshi Yamada, Yoshihiro Enomoto, Katsuya Takenouchi, Katsunori Kikuchihara, Yoshihisa Nakao, Kazuyuki Yagata, Kiyotoshi Kaneyama, Kenji Suzuki
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Publication number: 20110236046Abstract: There is provided an image forming apparatus including: a transfer-receiving member onto which developer images are transferred and superimposed in sequence by switching over plural developing units that develop latent images on a latent image holding body with a developer to form developer images; a primary transfer section that primary transfers the developer image on the latent image holding body onto the transfer-receiving member; a secondary transfer section that secondary transfers the developer image on the transfer-receiving member onto a recording medium; and a selection section that selects a combination of a first process speed for the primary transfer and a second process speed for the secondary transfer according to the number of developing units employed.Type: ApplicationFiled: November 22, 2010Publication date: September 29, 2011Inventors: Yoshihisa Nakao, Yoshihiro Enomoto, Katsuya Takenouchi, Katsunori Kikuchihara, Kiyotoshi Kaneyama, Kenji Suzuki, Masatoshi Yamada, Kazuyuki Yagata
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Publication number: 20090123196Abstract: An image forming apparatus includes: an endless intermediate transferring belt to which a toner image is transferred; a reference position marking member that is formed on a surface of the intermediate transferring belt, and that shows a reference position in a circumferential direction of the intermediate transferring belt; a detecting unit that detects the reference position marking member; and a control unit that controls the intermediate transferring belt to stop at a position where the reference position marking member is exposed to outside in a case where an outer cover is opened.Type: ApplicationFiled: May 14, 2008Publication date: May 14, 2009Applicant: FUJI XEROX CO., LTD.Inventors: Yoshihisa NAKAO, Masao OHKUBO, Yoshihiro ENOMOTO, Shinichi KAWAMATA, Kazumi YAMANAKA, Masaaki TOKUNAGA, Hirofumi GOTO, Kazuyoshi HAGIWARA, Hiroaki YAGI, Masatoshi YAMADA
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Patent number: 6397144Abstract: An on-vehicle information processor is configured such that, when there is a request for access from application units to the same map data stored in a data management unit, a request analyzing unit maintains the map data unlocked so that the applications can access the map data.Type: GrantFiled: November 29, 2000Date of Patent: May 28, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tomoya Ikeuchi, Masaharu Umezu, Shoichiro Takenaka, Yoshihisa Nakao, Satoshi Maegawa, Makoto Mikuriya, Mitsuo Shimotani
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Publication number: 20010002457Abstract: An on-vehicle information processor includes a map reader for reading map data from a map data storage in response to an application unit, a map manager provided with a map object generating unit for generating a map object of a format suitable for a request from an application, and a map object output unit for converting the map object thus generated into a format suitable for execution of the application before outputting the map object thus converted to the application unit.Type: ApplicationFiled: November 29, 2000Publication date: May 31, 2001Inventors: Masaharu Umezu, Tomoya Ikeuchi, Yoshihisa Nakao, Shoichiro Takenaka, Satoshi Maegawa, Makoto Mikuriya, Mitsuo Shimotani
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Publication number: 20010002456Abstract: An on-vehicle information processor is configured such that, when there is a request for access from application units to the same map data stored in a data management unit, a request analyzing unit maintains the map data unlocked so that the applications can access the map data.Type: ApplicationFiled: November 29, 2000Publication date: May 31, 2001Inventors: Tomoya Ikeuchi, Masaharu Umezu, Shoichiro Takenaka, Yoshihisa Nakao, Satoshi Maegawa, Makoto Mikuriya, Mitsuo Shimotani