Patents by Inventor Yasuyuki Aiko
Yasuyuki Aiko 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: 11385843Abstract: An image forming apparatus includes an image forming assembly, a first interface, a second interface, a display, a discrimination processor, and a controller. When the discrimination processor discriminates that a set value of a printing condition, received from a portable terminal through the second interface is capable of being set by the image forming apparatus, the controller causes the image forming assembly to form an image under the printing condition depending on the set value. When the discrimination processor discriminates that the set value is not capable of being set by the image forming apparatus, the controller causes the display to display a message that the set value is not capable of being set by the image forming apparatus and a message of a printing condition based on another set value capable of being set instead of the set value by the image forming apparatus.Type: GrantFiled: February 5, 2021Date of Patent: July 12, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yasuyuki Aiko
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Publication number: 20210263690Abstract: An image forming apparatus includes an image forming portion, a first interface, a second interface, a display portion, a discrimination processor, and a controller. When the discrimination processor discriminates that a set value of a printing condition, received from a portable terminal through the second interface is capable of being set by the image forming apparatus, the controller causes the image forming portion to form an image under the printing condition depending on the set value. When the discrimination processor discriminates that the set value is not capable of being set by the image forming apparatus, the controller causes the display portion to display a message that the set value is not capable of being set by the image forming apparatus and a message of a printing condition based on another set value capable of being set instead of the set value by the image forming apparatus.Type: ApplicationFiled: February 5, 2021Publication date: August 26, 2021Inventor: Yasuyuki Aiko
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Patent number: 9098026Abstract: An image forming apparatus includes an image forming unit for forming a toner image on a sheet of paper; a fixing unit for fixing the toner image formed on the sheet of paper by heat; a power control unit for, when power to be supplied to the fixing unit is increased, determining an amount of increase of the power; and a current limiting unit for determining whether current consumption of the image forming apparatus exceeds an upper limit value in response to an increase of the amount of increase determined by the power control unit and, if it is determined that the current consumption exceeds the upper limit value, decreasing the amount of increase of the power determined by the power control unit.Type: GrantFiled: August 19, 2011Date of Patent: August 4, 2015Assignee: CANON KABUSHIKI KAISHAInventor: Yasuyuki Aiko
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Patent number: 8326206Abstract: An image forming apparatus which is capable of correctly and accurately detecting a sheet leading edge position and carrying out image formation in appropriate image write timing, includes a detection device disposed at a reference position upstream from the transfer position and detects the recording medium being conveyed. A determining device determines image write timing for forming the electrostatic latent image on the photosensitive drum based on a difference in position between a leading edge position of the recording medium detected by said detection device and the reference position. The detection device respectively include a plurality of light detecting pixels disposed in a recording medium conveying direction, and the leading edge position of the recording medium detected by the respective light detecting pixels.Type: GrantFiled: October 10, 2009Date of Patent: December 4, 2012Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Aiko
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Publication number: 20120263486Abstract: An image forming apparatus includes an image forming unit for forming a toner image on a sheet of paper; a fixing unit for fixing the toner image formed on the sheet of paper by heat; a power control unit for, when power to be supplied to the fixing unit is increased, determining an amount of increase of the power; and a current limiting unit for determining whether current consumption of the image forming apparatus exceeds an upper limit value in response to an increase of the amount of increase determined by the power control unit and, if it is determined that the current consumption exceeds the upper limit value, decreasing the amount of increase of the power determined by the power control unit.Type: ApplicationFiled: August 19, 2011Publication date: October 18, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Yasuyuki Aiko
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Patent number: 8285158Abstract: An image forming apparatus that is capable of preventing an abnormal operation due to a voltage drop of a commercial power source and continuing an image forming operation efficiently even if the voltage drop occurs. A fixing unit fixes a toner image transferred onto a sheet. A voltage detection unit detects an input voltage of the commercial power source. A setting unit sets a fixing electric power supplied to the fixing unit from the commercial power source. A control unit suspends an operation when the set fixing electric power is less than a predetermined electric power and when the input voltage is less than a first voltage, and to continue the operation while reducing the set fixing electric power when the set fixing electric power is not less than the predetermined electric power and when the input voltage is less than a second voltage.Type: GrantFiled: November 11, 2009Date of Patent: October 9, 2012Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Aiko
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Publication number: 20100124425Abstract: An image forming apparatus that is capable of preventing an abnormal operation due to a voltage drop of a commercial power source and continuing an image forming operation efficiently even if the voltage drop occurs. A fixing unit fixes a toner image transferred onto a sheet. A voltage detection unit detects an input voltage of the commercial power source. A setting unit sets a fixing electric power supplied to the fixing unit from the commercial power source. A control unit suspends an operation when the set fixing electric power is less than a predetermined electric power and when the input voltage is less than a first voltage, and to continue the operation while reducing the set fixing electric power when the set fixing electric power is not less than the predetermined electric power and when the input voltage is less than a second voltage.Type: ApplicationFiled: November 11, 2009Publication date: May 20, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Yasuyuki Aiko
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Patent number: 7663659Abstract: An image forming apparatus forms an image by laser beams from a plurality of lasers. The image forming apparatus includes a light amount control circuit that detects displacement in a sub-scanning direction of the main scanning line of a laser beam from the predetermined laser, from a reference position. The apparatus decides an allotted amount of light for each of the plurality of lasers in accordance with the detected displacement and controls to drive each of the plurality of lasers in accordance with the decided allotted amount of light for each laser.Type: GrantFiled: January 11, 2008Date of Patent: February 16, 2010Assignee: Canon Kabushiki KaishaInventors: Katsuhide Koga, Shigeo Hata, Yasuyuki Aiko, Akihiko Sakai, Takashi Nagaya, Takashi Birumachi, Shingo Kitamura
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Publication number: 20100028034Abstract: An image forming apparatus which is capable of correctly and accurately detecting a sheet leading edge position and carrying out image formation in appropriate image write timing, includes a detection device disposed at a reference position upstream from the transfer position and detects the recording medium being conveyed. A determining device determines image write timing for forming the electrostatic latent image on the photosensitive drum based on a difference in position between a leading edge position of the recording medium detected by said detection device and the reference position. The detection device respectively include a plurality of light detecting pixels disposed in a recording medium conveying direction, and the leading edge position of the recording medium detected by the respective light detecting pixels.Type: ApplicationFiled: October 10, 2009Publication date: February 4, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Yasuyuki AIKO
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Patent number: 7620361Abstract: An image forming apparatus, which is capable of correctly and accurately detecting a sheet leading edge position and carrying out image formation in appropriate image write timing, includes a detection device disposed at a reference position upstream from the transfer position and detects the recording medium being conveyed. A determining device determines image write timing for forming the electrostatic latent image on the photosensitive drum based on a difference in position between a leading edge position of the recording medium detected by said detection device and the reference position. The detection device respectively include a plurality of light detecting pixels disposed in a recording medium conveying direction, and the leading edge position of the recording medium detected by the respective light detecting pixels.Type: GrantFiled: January 23, 2006Date of Patent: November 17, 2009Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Aiko
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Publication number: 20090073472Abstract: An image forming apparatus which is capable of correctly and accurately detecting a sheet leading edge position and carrying out image formation in appropriate image write timing. a detection device is disposed at a reference position upstream from the transfer position and detects the recording medium being conveyed. A determining device determines image write timing for forming the electrostatic latent image on the photosensitive drum based on a difference in position between a leading edge position of the recording medium detected by the detection device and the reference position. The detection device respectively include a plurality of light detecting pixels disposed in a recording medium conveying direction, and the leading edge position of the recording medium detected by the respective light detecting pixels.Type: ApplicationFiled: November 20, 2008Publication date: March 19, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Yasuyuki AIKO
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Patent number: 7463279Abstract: An image forming apparatus forms an image by laser beams from a plurality of lasers. The image forming apparatus includes a light amount control circuit that detects displacement in a sub-scanning direction of the main scanning line of a laser beam from the predetermined laser, from a reference position. The apparatus decides an allotted amount of light for each of the plurality of lasers in accordance with the detected displacement and controls to drive each of the plurality of lasers in accordance with the decided allotted amount of light for each laser.Type: GrantFiled: December 6, 2005Date of Patent: December 9, 2008Assignee: Canon Kabushiki KaishaInventors: Katsuhide Koga, Shigeo Hata, Yasuyuki Aiko, Akihiko Sakai, Takashi Nagaya, Takashi Birumachi, Shingo Kitamura
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Patent number: 7415226Abstract: In an image formation method of an image formation apparatus for correcting uneven image formation on the basis of vibration property information corresponding to an operation sequence in image formation, vibration property information corresponding to a plurality of operation sequences are stored in a storage device. The uneven image formation is corrected on the basis of vibration property information corresponding to an operation sequence selected from the storage device. Vibration property information generated by driving a movable member is measured when the selected operation sequence is being executed while correcting the uneven image formation. It is determined whether the measured vibration property information is similar to the vibration property information selected from the storage device. The vibration property information stored in the storage device is rewrite-controlled in accordance with the measurement result or the determination result.Type: GrantFiled: December 8, 2005Date of Patent: August 19, 2008Assignee: Canon Kabushiki KaishaInventors: Akihiko Sakai, Shigeo Hata, Yasuyuki Aiko, Katsuhide Koga, Takashi Nagaya, Takashi Birumachi, Shingo Kitamura
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Publication number: 20080117279Abstract: An image forming apparatus forms an image by laser beams from a plurality of lasers. The image forming apparatus includes a light amount control circuit that detects displacement in a sub-scanning direction of the main scanning line of a laser beam from the predetermined laser, from a reference position. The apparatus decides an allotted amount of light for each of the plurality of lasers in accordance with the detected displacement and controls to drive each of the plurality of lasers in accordance with the decided allotted amount of light for each laser.Type: ApplicationFiled: January 11, 2008Publication date: May 22, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Katsuhide KOGA, Shigeo HATA, Yasuyuki AIKO, Akihiko SAKAI, Takashi NAGAYA, Takashi BIRUMACHI, Shingo KITAMURA
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Patent number: 7372008Abstract: An image heating apparatus has a magnetic flux generator; a heat generating element for generating heat by a magnetic flux generated by the magnetic flux generator, the heat generating element being effective to heat an image on a recording material; an electric power supply for supplying electric power to the magnetic flux generator; electric power changing unit for changing electric power to be supplied to the magnetic flux generator on the basis of a temperature rise property of the heat generating element, in a period from start of electric power supply to the magnetic flux generator to reaching of a temperature of the heat generating element to a predetermined level.Type: GrantFiled: December 16, 2005Date of Patent: May 13, 2008Assignee: Canon Kabushiki KaishaInventors: Tomoichiro Ohta, Manabu Yamauchi, Hiroto Nishihara, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Takamitsu Hirayama
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Patent number: 7262391Abstract: A heating apparatus, for heating a material P to be heated by heat from a heat generation member which has a predetermined curie temperature characteristic and generates heat by magnetic flux produced by a magnetic flux generation device. The apparatus includes a discrimination device for discriminating whether or not the curie temperature characteristic of the heat generation member is a predetermined characteristic and a control device for terminating the supply of electric power to the magnetic flux generation device when the discrimination device determines that the curie temperature characteristic is not the predetermined characteristic.Type: GrantFiled: February 7, 2006Date of Patent: August 28, 2007Assignee: Canon Kabushiki KaishaInventors: Hiroto Nishihara, Manabu Yamauchi, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichiro Ohta, Takamitsu Hirayama
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Publication number: 20060202116Abstract: An image forming apparatus forms an image by laser beams from a plurality of lasers. The image forming apparatus includes a light amount control circuit that detects displacement in a sub-scanning direction of the main scanning line of a laser beam from the predetermined laser, from a reference position. The apparatus decides an allotted amount of light for each of the plurality of lasers in accordance with the detected displacement and controls to drive each of the plurality of lasers in accordance with the decided allotted amount of light for each laser.Type: ApplicationFiled: December 6, 2005Publication date: September 14, 2006Applicant: Canon Kabushiki KaishaInventors: Katsuhide Koga, Shigeo Hata, Yasuyuki Aiko, Akihiko Sakai, Takashi Nagaya, Takashi Birumachi, Shingo Kitamura
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Publication number: 20060177253Abstract: An image forming apparatus which is capable of correctly and accurately detecting a sheet leading edge position and carrying out image formation in appropriate image write timing. a detection device is disposed at a reference position upstream from the transfer position and detects the recording medium being conveyed. A determining device determines image write timing for forming the electrostatic latent image on the photosensitive drum based on a difference in position between a leading edge position of the recording medium detected by said detection device and the reference position. The detection device respectively include a plurality of light detecting pixels disposed in a recording medium conveying direction, and the leading edge position of the recording medium detected by the respective light detecting pixels.Type: ApplicationFiled: January 23, 2006Publication date: August 10, 2006Applicant: Canon Kabushiki KaishaInventor: Yasuyuki Aiko
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Publication number: 20060157475Abstract: A heating apparatus, for heating a material P to be heated by heat from a heat generation member which has a predetermined curie temperature characteristic and generates heat by magnetic flux produced by a magnetic flux generation device. The apparatus includes a discrimination device for discriminating whether or not the curie temperature characteristic of the heat generation member is a predetermined characteristic and a control device for terminating the supply of electric power to the magnetic flux generation device when the discrimination device determines that the curie temperature characteristic is not the predetermined characteristic.Type: ApplicationFiled: February 7, 2006Publication date: July 20, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Hiroto Nishihara, Manabu Yamauchi, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichiro Ohta, Takamitsu Hirayama
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Publication number: 20060153588Abstract: In an image formation method of an image formation apparatus for correcting uneven image formation on the basis of vibration property information corresponding to an operation sequence in image formation, vibration property information corresponding to a plurality of operation sequences are stored in a storage device. The uneven image formation is corrected on the basis of vibration property information corresponding to an operation sequence selected from the storage device. Vibration property information generated by driving a movable member is measured when the selected operation sequence is being executed while correcting the uneven image formation. It is determined whether the measured vibration property information is similar to the vibration property information selected from the storage device. The vibration property information stored in the storage device is rewrite-controlled in accordance with the measurement result or the determination result.Type: ApplicationFiled: December 8, 2005Publication date: July 13, 2006Applicant: Canon Kabushiki KaishaInventors: Akihiko Sakai, Shigeo Hata, Yasuyuki Aiko, Katsuhide Koga, Takashi Nagaya, Takashi Birumachi, Shingo Kitamura