Patents by Inventor Kiyoshi Nagamine
Kiyoshi Nagamine 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: 8606122Abstract: An image forming apparatus includes a fixing unit which fixes an unfixed toner image retained onto a recording medium by at least heat while moving the recording medium; a setting unit which sets a plurality of levels of fixing condition in the fixing unit in accordance with user's desire; and a changing unit which changes at least one of temperature with which the recording medium is heated by the fixing unit and speed with which the recording medium is moved by the fixing unit, in accordance with the level of fixing condition set by the setting unit.Type: GrantFiled: October 7, 2010Date of Patent: December 10, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Kiyoshi Nagamine
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Patent number: 8185024Abstract: A developing unit including a retainer receiving portion for receiving a developer retainer, a first agitation portion adjacent to the retainer receiving portion, a second agitation portion adjacent to the first agitation portion, a first conveyance member received in the first agitation portion and conveying a developer in the first agitation portion in a first conveyance direction, a second conveyance member received in the second agitation portion and conveying a developer in the second agitation portion in a second conveyance direction reverse to the first conveyance direction, and a magnetic member disposed between the second conveyance member and the developer retainer and having magnetism.Type: GrantFiled: November 10, 2009Date of Patent: May 22, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Kiyoshi Sakoh, Kiyoshi Nagamine, Tomoyuki Yoshii
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Patent number: 8045895Abstract: A developing device has: a developer housing chamber in which developer is housed; a developer holding member holding developer by magnetic force; a partitioning wall having an overlapping region that, in a transparent plan view, is positioned upward of the developer holding member and overlaps the developer holding member in an up/down direction; and an opening portion formed in the overlapping region of the partitioning wall. The partitioning wall is a portion of a separating wall of the developer housing chamber, and is provided between the developer housing chamber and the developer holding member.Type: GrantFiled: March 24, 2009Date of Patent: October 25, 2011Assignee: Fuji Xerox Co., Ltd.Inventors: Takuji Matsumoto, Kiyoshi Nagamine
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Publication number: 20110236036Abstract: An image forming apparatus includes a fixing unit which fixes an unfixed toner image retained onto a recording medium by at least heat while moving the recording medium; a setting unit which sets a plurality of levels of fixing condition in the fixing unit in accordance with user's desire; and a changing unit which changes at least one of temperature with which the recording medium is heated by the fixing unit and speed with which the recording medium is moved by the fixing unit, in accordance with the level of fixing condition set by the setting unit.Type: ApplicationFiled: October 7, 2010Publication date: September 29, 2011Applicant: FUJI XEROX CO., LTD.Inventor: Kiyoshi NAGAMINE
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Publication number: 20100247151Abstract: A developing unit including a retainer receiving portion for receiving a developer retainer, a first agitation portion adjacent to the retainer receiving portion, a second agitation portion adjacent to the first agitation portion, a first conveyance member received in the first agitation portion and conveying a developer in the first agitation portion in a first conveyance direction, a second conveyance member received in the second agitation portion and conveying a developer in the second agitation portion in a second conveyance direction reverse to the first conveyance direction, and a magnetic member disposed between the second conveyance member and the developer retainer and having magnetism.Type: ApplicationFiled: November 10, 2009Publication date: September 30, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Kiyoshi SAKOH, Kiyoshi NAGAMINE, Tomoyuki YOSHII
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Publication number: 20100098463Abstract: A developing device has: a developer housing chamber in which developer is housed; a developer holding member holding developer by magnetic force; a partitioning wall having an overlapping region that, in a transparent plan view, is positioned upward of the developer holding member and overlaps the developer holding member in an up/down direction; and an opening portion formed in the overlapping region of the partitioning wall. The partitioning wall is a portion of a separating wall of the developer housing chamber, and is provided between the developer housing chamber and the developer holding member.Type: ApplicationFiled: March 24, 2009Publication date: April 22, 2010Inventors: Takuji Matsumoto, Kiyoshi Nagamine
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Patent number: 7395002Abstract: An image forming apparatus including: an outputted image density control portion that forms a patch image and determines an outputted image density control condition based on a comparison result of the density of the patch image with a preliminarily set target value; a pixel count portion capable of counting the amount of image pixel at the time of image formation; a pixel count value accumulating memory portion that accumulates and stores the pixel count value; a toner supply portion; a toner supply amount measuring portion capable of measuring the amount of toner supplied to the developing device; a toner supply amount accumulating memory portion that accumulates and stores the toner supply amount; and a target value correcting portion that corrects the target value of the density of the patch image from the relation between a pixel count accumulating value and a toner supply amount accumulation value, is provided.Type: GrantFiled: May 26, 2006Date of Patent: July 1, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuhiro Funayama, Makoto Kanai, Hisashi Fukasawa, Masaru Sakuma, Kiyoshi Nagamine
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Patent number: 7263298Abstract: In the case of being mounted with any cartridge other than a genuine cartridge, which accommodates a toner other than a genuine toner, a user can select as an operation mode other than that corresponding to a genuine toner, through a UI device 18, making a correction to the consumption of a developer by combining conditions to be changed, such as increasing or decreasing the degree of a change (gradient) in a set value of the toner density with respect to the consumption of a developer (m1 or m2); increasing or decreasing a limit value (m1 or m2); varying an initial value (consumption=0) (m3); no making a change in a set value according to the consumption (m4); and no making a change in a set value according to the consumption, for example, by varying an initial value (m5)Type: GrantFiled: March 18, 2005Date of Patent: August 28, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Kiyoshi Nagamine, Yasushi Sakata, Tsuneo Toda, Haruhiko Okabe, Akinori Ono, Hiroh Soga, Takeshi Yokoe, Kiyoshi Kimura
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Patent number: 7242873Abstract: An image forming apparatus has at least one replaceable unit replaceably mounted to an image forming apparatus main body. The image forming apparatus outputs a message purporting that a reservation of an operation mode can be received, at the timing that a replacement timing of the replaceable unit which is currently mounted is close in time. If so, prior to the replacement of the replaceable unit which is current mounted, a reservation of an operation mode for a replaceable unit which is to be mounted next time may be received. Further, if the replacement of the replaceable unit is detected, the image forming apparatus starts the control according to the reserved operation mode.Type: GrantFiled: March 21, 2005Date of Patent: July 10, 2007Assignee: Fuji Xerox Co. Ltd.Inventors: Mikio Saisu, Yasushi Sakata, Kiyoshi Nagamine, Haruhiko Okabe, Takeshi Yokoe, Tsuneo Toda, Akinori Ono, Hiroh Soga, Kiyoshi Kimura
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Publication number: 20070081829Abstract: An image forming apparatus including: an outputted image density control portion that forms a patch image and determines an outputted image density control condition based on a comparison result of the density of the patch image with a preliminarily set target value; a pixel count portion capable of counting the amount of image pixel at the time of image formation; a pixel count value accumulating memory portion that accumulates and stores the pixel count value; a toner supply portion; a toner supply amount measuring portion capable of measuring the amount of toner supplied to the developing device; a toner supply amount accumulating memory portion that accumulates and stores the toner supply amount; and a target value correcting portion that corrects the target value of the density of the patch image from the relation between a pixel count accumulating value and a toner supply amount accumulation value, is provided.Type: ApplicationFiled: May 26, 2006Publication date: April 12, 2007Applicant: FUJI XEROX CO., LTD.Inventors: Yasuhiro Funayama, Makoto Kanai, Hisashi Fukasawa, Masaru Sakuma, Kiyoshi Nagamine
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Patent number: 7194212Abstract: By using information stored in a storage part provided in the image forming apparatus main body or the results of detection of an image density sensor or the like, it is judged whether or not a replaceable unit such as a toner cartridge has been replaced. Furthermore, from information stored in the storage part provided in the image forming apparatus main body, it is detected whether a replaceable unit such as a toner cartridge is genuine or other than genuine units. From these detection results, information on the amount used for developer of the replaced toner cartridge, stored in the storage part, is initialized.Type: GrantFiled: December 30, 2004Date of Patent: March 20, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroaki Kumai, Kiyoshi Nagamine, Hideaki Tanaka, Hiroh Soga
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Patent number: 7174110Abstract: With an image forming device, with respect to a set image density S (default mode), the modes of: increasing or decreasing the variation amount (slope) of the set image density in accordance with a usage amount of a developing device (m1, m2); increasing or decreasing the limit value (m1, m2); changing the initial value (usage amount=0); not changing the setting in accordance with the usage amount (m4); and changing, for example, the initial value but not changing the setting in accordance with the usage amount (m5); etc., are provided as operation modes that differ from an operation mode accommodating a genuine product and are enabled to be selected by a user when a toner cartridge containing a toner that is a product other than a genuine product is mounted.Type: GrantFiled: December 28, 2004Date of Patent: February 6, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroh Soga, Kiyoshi Nagamine, Hiroshi Kawarazuka, Hideaki Tanaka
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Publication number: 20050254840Abstract: An image forming apparatus has at least one replaceable unit replaceably mounted to an image forming apparatus main body. The image forming apparatus outputs a message purporting that a reservation of an operation mode can be received, at the timing that a replacement timing of the replaceable unit which is currently mounted is close in time. If so, prior to the replacement of the replaceable unit which is current mounted, a reservation of an operation mode for a replaceable unit which is to be mounted next time may be received. Further, if the replacement of the replaceable unit is detected, the image forming apparatus starts the control according to the reserved operation mode.Type: ApplicationFiled: March 21, 2005Publication date: November 17, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Mikio Saisu, Yasushi Sakata, Kiyoshi Nagamine, Haruhiko Okabe, Takeshi Yokoe, Tsuneo Toda, Akinori Ono, Hiroh Soga, Kiyoshi Kimura
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Publication number: 20050254832Abstract: By using information stored in a storage part provided in the image forming apparatus main body or the results of detection of an image density sensor or the like, it is judged whether or not a replaceable unit such as a toner cartridge has been replaced. Furthermore, from information stored in the storage part provided in the image forming apparatus main body, it is detected whether a replaceable unit such as a toner cartridge is genuine or other than genuine units. From these detection results, information on the amount used for developer of the replaced toner cartridge, stored in the storage part, is initialized.Type: ApplicationFiled: December 30, 2004Publication date: November 17, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Hiroaki Kumai, Kiyoshi Nagamine, Hideaki Tanaka, Hiroh Soga
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Publication number: 20050254839Abstract: In the case of being mounted with any cartridge other than a genuine cartridge, which accommodates a toner other than a genuine toner, a user can select as an operation mode other than that corresponding to a genuine toner, through a UI device 18, making a correction to the consumption of a developer by combining conditions to be changed, such as increasing or decreasing the degree of a change (gradient) in a set value of the toner density with respect to the consumption of a developer (m1 or m2); increasing or decreasing a limit value (m1 or m2); varying an initial value (consumption=0) (m3); no making a change in a set value according to the consumption (m4); and no making a change in a set value according to the consumption, for example, by varying an initial value (m5)Type: ApplicationFiled: March 18, 2005Publication date: November 17, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Kiyoshi Nagamine, Yasushi Sakata, Tsuneo Toda, Haruhiko Okabe, Akinori Ono, Hiroh Soga, Takeshi Yokoe, Kiyoshi Kimura
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Publication number: 20050254831Abstract: With an image forming device, with respect to a set image density S (default mode), the modes of: increasing or decreasing the variation amount (slope) of the set image density in accordance with a usage amount of a developing device (m1, m2); increasing or decreasing the limit value (m1, m2); changing the initial value (usage amount=0); not changing the setting in accordance with the usage amount (m4); and changing, for example, the initial value but not changing the setting in accordance with the usage amount (m5); etc., are provided as operation modes that differ from an operation mode accommodating a genuine product and are enabled to be selected by a user when a toner cartridge containing a toner that is a product other than a genuine product is mounted.Type: ApplicationFiled: December 28, 2004Publication date: November 17, 2005Applicant: FUJI XEROX CO., LTD.Inventors: Hiroh Soga, Kiyoshi Nagamine, Hiroshi Kawarazuka, Hideaki Tanaka
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Patent number: 6349183Abstract: An image forming apparatus includes a toner supply for supplying toner to the developing unit; a toner supply control device for determining the final amount of toner supply, on the basis of the standard amount of toner supply corresponding to image coverage and a change in the amount of toner supply corresponding to the density of an image, thereby controlling the toner supply; a toner supply history storage device for storing a history concerning the amount of toner supplied; a toner consumption status determination device for determining whether or not an excessive amount of toner is consumed, on the basis of the toner supply history information; and development property stabilization device which interrupts formation of an image when the toner consumption status determination device determines that an excessive amount of toner is consumed, thereby causing the toner supply to supply toner and causing the developing unit to agitate and blend a developing agent or to temporarily agitate and blend a developinType: GrantFiled: November 27, 2000Date of Patent: February 19, 2002Assignee: Fuji Xerox Co., Ltd.Inventors: Kiyoshi Nagamine, Yoshifumi Ozaki, Toru Ishikawa, Hiroshi Kawarazuka