Patents by Inventor Taizo Kimoto
Taizo Kimoto 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: 9378439Abstract: According to an embodiment, an image forming apparatus includes an image forming unit and a controller. The image forming unit prints an original image and a specific image in a recording medium. In a case where it is determined that the recording medium is a reused recording medium, the controller controls the image forming unit to newly print the specific image at a position different from a print position of the previously-printed specific image.Type: GrantFiled: February 26, 2015Date of Patent: June 28, 2016Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Taizo Kimoto
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Patent number: 9164440Abstract: An image forming apparatus includes a fixing unit that fixes an image of a toner using any one of a first toner and a second toner on a recording medium, and a control unit that sets a fixing temperature and a standby temperature of the fixing unit. The control unit sets the fixing temperature when the image of the first toner is fixed to a first temperature, sets the fixing temperature when the image of the second toner is fixed to a second temperature lower than the first temperature, and sets the standby temperature when the fixing unit is in a standby state to a temperature closer than the second temperature than the first temperature.Type: GrantFiled: August 29, 2013Date of Patent: October 20, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventor: Taizo Kimoto
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Publication number: 20150294202Abstract: According to an embodiment, an image forming apparatus includes an image forming unit and a controller. The image forming unit prints an original image and a specific image in a recording medium. In a case where it is determined that the recording medium is a reused recording medium, the controller controls the image forming unit to newly print the specific image at a position different from a print position of the previously-printed specific image.Type: ApplicationFiled: February 26, 2015Publication date: October 15, 2015Inventor: Taizo KIMOTO
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Publication number: 20140193168Abstract: According to an embodiment, an image forming apparatus includes a fixing unit that fixes an image of a toner using any one of a first toner and a second toner on a recording medium, and a control unit that sets a fixing temperature and a standby temperature of the fixing unit. The control unit sets the fixing temperature when the image of the first toner is fixed, to a first temperature, sets the fixing temperature when the image of the second toner is fixed, to a second temperature lower than the first temperature and sets the standby temperature when the fixing unit is in a standby state, to a temperature closer than the second temperature than the first temperature.Type: ApplicationFiled: August 29, 2013Publication date: July 10, 2014Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventor: Taizo KIMOTO
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Publication number: 20120002224Abstract: According to one embodiment, an image forming apparatus includes a data adding part and an image forming part. The data adding part acquires first identification data from a first storage part provided in a colorant container to contain a colorant and storing the first identification data intrinsic to the colorant container, and adds first additional data based on the first identification data to image data to be formed on a sheet. The image forming part forms an image on the sheet based on the image data to which the first additional data is added.Type: ApplicationFiled: July 1, 2011Publication date: January 5, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventor: Taizo KIMOTO
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Publication number: 20070189794Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: ApplicationFiled: April 20, 2007Publication date: August 16, 2007Inventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Patent number: 7228084Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: GrantFiled: August 25, 2005Date of Patent: June 5, 2007Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Patent number: 7062193Abstract: An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed member, in which the fixing device comprises a circuit board for outputting the AC current from an output terminal and passing the current through the electromagnetic induction coil, a conductive plate metal having one end side fixed by a fastening screw to the output terminal of the circuit board, a male-side connection terminal provided on the other end of the plate metal, and a female-side connection terminal provided at an end of a leader line of the electromagnetic induction coil and detachably connected to a male-side connection terminal.Type: GrantFiled: August 27, 2004Date of Patent: June 13, 2006Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Publication number: 20050281576Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: ApplicationFiled: August 25, 2005Publication date: December 22, 2005Inventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Publication number: 20050025516Abstract: An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed member, in which the fixing device comprises a circuit board for outputting the AC current from an output terminal and passing the current through the electromagnetic induction coil, a conductive plate metal having one end side fixed by a fastening screw to the output terminal of the circuit board, a male-side connection terminal provided on the other end of the plate metal, and a female-side connection terminal provided at an end of a leader line of the electromagnetic induction coil and detachably connected to a male-side connection terminal.Type: ApplicationFiled: August 27, 2004Publication date: February 3, 2005Inventors: Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Patent number: 6813456Abstract: An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed member, in which the fixing device comprises a circuit board for outputting the AC current from an output terminal and passing the current through the electromagnetic induction coil, a conductive plate metal having one end side fixed by a fastening screw to the output terminal of the circuit board, a male-side connection terminal provided on the other end of the plate metal, and a female-side connection terminal provided at an end of a leader line of the electromagnetic induction coil and detachably connected to a male-side connection terminal.Type: GrantFiled: November 8, 2002Date of Patent: November 2, 2004Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Publication number: 20040208664Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: ApplicationFiled: May 7, 2004Publication date: October 21, 2004Applicant: KABUSHIKI KAISHA TOSHIBA and TOSHIBA TEC KABUSHIKI KAISHAInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Patent number: 6748184Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: GrantFiled: July 8, 2003Date of Patent: June 8, 2004Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Publication number: 20040028422Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: ApplicationFiled: July 8, 2003Publication date: February 12, 2004Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Patent number: 6660979Abstract: A fixing device comprising an endless heating member which is adapted to be contacted with a fixable member to thereby enable an image on the fixable member to be thermally fixed, an electromagnetic inductive coil member disposed close to the endless heating member and inductively heating the endless heating member, and an AC power supply circuit supplying an AC current to the electromagnetic inductive coil member. The coil member is constructed such that in a state where the coil member is positioned in the fixing device, a ratio between an inductance L of the coil member and a load resistance R of the coil member meets a condition of L/R<50×10−6 (H/&OHgr;).Type: GrantFiled: November 8, 2002Date of Patent: December 9, 2003Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Patent number: 6625405Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: GrantFiled: December 11, 2002Date of Patent: September 23, 2003Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki ToshibaInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Publication number: 20030091362Abstract: An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed member, in which the fixing device comprises a circuit board for outputting the AC current from an output terminal and passing the current through the electromagnetic induction coil, a conductive plate metal having one end side fixed by a fastening screw to the output terminal of the circuit board, a male-side connection terminal provided on the other end of the plate metal, and a female-side connection terminal provided at an end of a leader line of the electromagnetic induction coil and detachably connected to a male-side connection terminal.Type: ApplicationFiled: November 8, 2002Publication date: May 15, 2003Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Publication number: 20030081961Abstract: The present invention provides a fixing device and a digital photocopier which can shorten the time from an instruction of starting image formation to end of fixing. The fixing device is provided in a cylinder made of metal and having a small thickness, and includes a magnetic excitation coil. When the power source is turned on, all the electric power defined by subtracting an electric power amount consumed by components other than the fixing device is supplied to the magnetic excitation coil to perform heating. As the structural components of the photocopier and auxiliary devices added to the photocopier operate, the electric power defined by subtracting, from the maximum input electric power, the electric power consumed by the structural components of the photocopier and the auxiliary devices is supplied to perform heating. In this manner, the heat roller of the fixing device is heated, in a short time, to a temperature which enables fixing, so that the time required for first copying can be shortened.Type: ApplicationFiled: December 11, 2002Publication date: May 1, 2003Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Noriyuki Umezawa, Taizo Kimoto, Kenji Takano, Hisaaki Kawano, Hiroshi Nakayama, Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Masahiko Ogura
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Publication number: 20030062363Abstract: A fixing device comprising an endless heating member which is adapted to be contacted with a fixable member to thereby enable an image on the fixable member to be thermally fixed, an electromagnetic inductive coil member disposed close to the endless heating member and inductively heating the endless heating member, and an AC power supply circuit supplying an AC current to the electromagnetic inductive coil member. The coil member is constructed such that in a state where the coil member is positioned in the fixing device, a ratio between an inductance L of the coil member and a load resistance R of the coil member meets a condition of L/R<50×10−6 (H/&OHgr;).Type: ApplicationFiled: November 8, 2002Publication date: April 3, 2003Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Osamu Takagi, Satoshi Kinouchi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura
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Fixing device having connection member for supplying AC current to an electromagnetic induction coil
Patent number: 6522846Abstract: An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed members. The fixing device comprises a circuit board for outputting the AC current from an output terminal and passing the current through the electromagnetic induction coil. A connection plate having a thickness twice or more the current penetration depth and having one end side fixed by a fastening screw to the output terminal of the circuit board, and a male-side connection terminal provided on the other end of the plate metal. A female-side connection terminal provided at an end of a leader line of the electromagnetic induction coil is detachably connected to the male-side connection terminal.Type: GrantFiled: August 28, 2001Date of Patent: February 18, 2003Assignee: Toshiba Tec Kabushiki KaishaInventors: Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Hisaaki Kawano, Hiroshi Nakayama, Kenji Takano, Taizo Kimoto, Noriyuki Umezawa, Masahiko Ogura