Patents by Inventor Taku Higashiyama
Taku Higashiyama 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: 10543679Abstract: A liquid holding amount of a porous body of a liquid absorbing member for removing at least a portion of an aqueous liquid component from an image obtained by ink jet printing is controlled so as to reduce damage to the porous body while maintaining performance of removing attached matters from the porous body by using a cleaning member which abuts on the porous body and has an adhesive force.Type: GrantFiled: July 23, 2018Date of Patent: January 28, 2020Assignee: Canon Kabushiki KaishaInventors: Satoshi Masuda, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Toru Ohnishi, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Yoshiyuki Honda, Taku Higashiyama, Susumu Hirosawa
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Publication number: 20180326719Abstract: A liquid holding amount of a porous body of a liquid absorbing member for removing at least a portion of an aqueous liquid component from an image obtained by ink jet printing is controlled so as to reduce damage to the porous body while maintaining performance of removing attached matters from the porous body by using a cleaning member which abuts on the porous body and has an adhesive force.Type: ApplicationFiled: July 23, 2018Publication date: November 15, 2018Inventors: Satoshi Masuda, Toru Yamane, Kyosuke Deguchi, Ryosuke Hirokawa, Toru Ohnishi, Akihiro Mouri, Noboru Toyama, Atsushi Sakamoto, Yoshiyuki Honda, Taku Higashiyama, Susumu Hirosawa
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Publication number: 20160223958Abstract: An image forming apparatus includes: an image forming portion configured to form a toner image on a recording material with a first toner and a second toner which are different in color from each other; and a light irradiating portion configured to irradiate, with light, the toner image formed on the recording material by the image forming portion. The first toner and the second toner include resin materials containing a common functional group. An infrared absorption wavelength range resulting from the functional group is 2.6 ?m or more and 3.6 ?m or less. A maximum intensity wavelength of the light with which the toner image is irradiated by the irradiating portion is in the 2.6 ?m or more and 3.6 ?m or less.Type: ApplicationFiled: April 13, 2016Publication date: August 4, 2016Inventor: Taku Higashiyama
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Publication number: 20160154349Abstract: A heating rotator includes a rubber layer containing 10 to 60 volume % of at least one of magnetic particles of iron, nickel, cobalt, ?-iron oxide, alnico, ferrite, and neodymium, and heats a toner image formed on a recording material at a nip portion. A control portion controls density of magnetic flux acting on the rubber layer from a magnetic flux generate portion.Type: ApplicationFiled: November 23, 2015Publication date: June 2, 2016Inventor: Taku Higashiyama
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Patent number: 9274471Abstract: A rotatable heating member incorporating a heat source configured to heat a toner image on a sheet includes an elastic layer and a surface layer provided on the elastic layer. When thermal effusivity of the surface layer is Bs and thermal effusivity of the elastic layer is Be, the following relationship is satisfied: ?0.04<(Be?Bs)/Be<0.04.Type: GrantFiled: January 22, 2015Date of Patent: March 1, 2016Assignee: Canon Kabushiki KaishaInventors: Taku Higashiyama, Koji Inoue
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Publication number: 20150253698Abstract: An image forming apparatus includes: an image forming portion configured to form a toner image on a recording material with a first toner and a second toner which are different in color from each other; and a light irradiating portion configured to irradiate, with light, the toner image formed on the recording material by the image forming portion. The first toner and the second toner include resin materials containing a common functional group. An infrared absorption wavelength range resulting from the functional group is 2.6 ?m or more and 3.6 ?m or less. A maximum intensity wavelength of the light with which the toner image is irradiated by the irradiating portion is in the 2.6 ?m or more and 3.6 ?m or less.Type: ApplicationFiled: March 4, 2015Publication date: September 10, 2015Inventor: Taku Higashiyama
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Patent number: 9116482Abstract: A heating member has a multi-layered structure of n layers in total to which layer numbers are assigned sequentially from one on a heat source side to a surface in contact with a recording medium. An n?th layer is heated by the heat source. The thermal permeability of the n?th layer is larger than the thermal permeability of a n?1?th layer and satisfies the following relationship: ?{square root over (?nt)}?dn where, ?n[m2/s] is the thermal diffusivity of the n?th layer, and dn[m] is the thickness of the n?th layer.Type: GrantFiled: April 3, 2014Date of Patent: August 25, 2015Assignee: Canon Kabushiki KaishaInventors: Koji Inoue, Taku Higashiyama
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Publication number: 20150212460Abstract: A rotatable heating member incorporating a heat source configured to heat a toner image on a sheet includes an elastic layer and a surface layer provided on the elastic layer. When thermal effusivity of the surface layer is Bs and thermal effusivity of the elastic layer is Be, the following relationship is satisfied: ?0.4<(Be?Bs)/Be<0.4.Type: ApplicationFiled: January 22, 2015Publication date: July 30, 2015Inventors: Taku Higashiyama, Koji Inoue
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Publication number: 20140301762Abstract: A heating member has a multi-layered structure of n layers in total to which layer numbers are assigned sequentially from one on a heat source side to a surface in contact with a recording medium. A n?th layer is heated by the heat source. Thermal permeability of the n?th layer is larger than thermal permeability of a n?1?th layer and satisfies a following relationship: ?{square root over (?nt)}?dn where, ?n[m2/s] is thermal diffusivity of the n?th layer, and dn[m] is a thickness of the n?th layer.Type: ApplicationFiled: April 3, 2014Publication date: October 9, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Koji Inoue, Taku Higashiyama
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Patent number: 7614716Abstract: A method of discriminating a type of recording medium and a discriminating apparatus in which the type of recording medium is discriminated based on a temperature change of the recording medium when the recording medium is heated. A type of recording medium is discriminated based on a phase difference between a pulse signal input to a heating device and a pulse signal output by a detecting device detecting a temperature of a recording medium.Type: GrantFiled: December 16, 2004Date of Patent: November 10, 2009Assignee: Canon Kabushiki KaishaInventor: Taku Higashiyama
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Recording-medium identification device and method using light sensor to detect recording medium type
Patent number: 7313067Abstract: A recording-medium identification device has a light-emitting element for applying light on the recording medium and a detection element for detecting diffusely reflected light reflected in a backward direction, that is, a direction opposite to the direction in which the applied light is made incident, the diffusely reflected light being part of the applied light that is scattered and reflected on the recording medium.Type: GrantFiled: October 28, 2003Date of Patent: December 25, 2007Assignee: Canon Kabushiki KaishaInventor: Taku Higashiyama -
Patent number: 7216945Abstract: A recording apparatus includes a recording unit for effecting recording on a recording medium, and a conveying unit for conveying the recording medium. The recording apparatus further includes a power input terminal adapted to be switched ON/OFF by the ignition key switch of an automobile, and a controller for executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal. In addition, a method of controlling the above-described recording apparatus includes executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal switched ON/OFF by the ignition key switch of an automobile.Type: GrantFiled: June 29, 2004Date of Patent: May 15, 2007Assignee: Canon Kabushiki KaishaInventors: Takashi Nojima, Osamu Sato, Atsuhiro Tsuchiya, Akio Kato, Masahiko Kubota, Koichi Kuno, Hiroyuki Tamaki, Taku Higashiyama
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Publication number: 20050134675Abstract: A method of discriminating a type of recording medium and a discriminating apparatus in which the type of recording medium is discriminated based on a temperature change of the recording medium when the recording medium is heated.Type: ApplicationFiled: December 16, 2004Publication date: June 23, 2005Applicant: Canon Kabushiki KaishaInventor: Taku Higashiyama
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Recording-medium identification device and method using light sensor to detect recording medium type
Publication number: 20040257942Abstract: A recording-medium identification device has a light-emitting element for applying light on the recording medium and a detection element for detecting diffusely reflected light reflected in a backward direction, that is, a direction opposite to the direction in which the applied light is made incident, the diffusely reflected light being part of the applied light that is scattered and reflected on the recording medium.Type: ApplicationFiled: October 28, 2003Publication date: December 23, 2004Applicant: Canon Kabushiki KaishaInventor: Taku Higashiyama -
Publication number: 20040252143Abstract: A recording apparatus includes a recording unit for effecting recording on a recording medium, and a conveying unit for conveying the recording medium. The recording apparatus further includes a power input terminal adapted to be switched ON/OFF by the ignition key switch of an automobile, and a controller for executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal. In addition, a method of controlling the above-described recording apparatus includes executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal switched ON/OFF by the ignition key switch of an automobile.Type: ApplicationFiled: June 29, 2004Publication date: December 16, 2004Applicant: Canon Kabushiki KaishaInventors: Takashi Nojima, Osamu Sato, Atsuhiro Tsuchiya, Akio Kato, Masahiko Kubota, Koichi Kuno, Hiroyuki Tamaki, Taku Higashiyama
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Patent number: 6789863Abstract: A recording apparatus includes a recording unit for effecting recording on a recording medium, and a conveying unit for conveying the recording medium. The recording apparatus further includes a power input terminal adapted to be switched ON/OFF by the ignition key switch of an automobile, and a controller for executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal. In addition, a method of controlling the above-described recording apparatus includes executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal switched ON/OFF by the ignition key switch of an automobile.Type: GrantFiled: November 23, 2001Date of Patent: September 14, 2004Assignee: Canon Kabushiki KaishaInventors: Takashi Nojima, Osamu Sato, Atsuhiro Tsuchiya, Akio Kato, Masahiko Kubota, Koichi Kuno, Hiroyuki Tamaki, Taku Higashiyama
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Publication number: 20020063742Abstract: This specification discloses a recording apparatus comprising recording means for effecting recording on a recording medium, and conveying means for conveying the recording medium, the recording apparatus further comprising a power input terminal adapted to be switched ON/OFF by the ignition key switch of an automobile, and control means for executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal. The specification also discloses a method of controlling the above-described recording apparatus, comprising executing the operation sequence of the recording apparatus in accordance with the ON/OFF state of the power input terminal switched ON/OFF by the ignition key switch of an automobile.Type: ApplicationFiled: November 23, 2001Publication date: May 30, 2002Inventors: Takashi Nojima, Osamu Sato, Atsuhiro Tsuchiya, Akio Kato, Masahiko Kubota, Koichi Kuno, Hiroyuki Tamaki, Taku Higashiyama