Patents by Inventor Hidehiko Kinoshita
Hidehiko Kinoshita 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: 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: 20070059057Abstract: When an abnormality factor occurs in a second heating device, a sheet located upstream of a branch portion is discharged onto a discharge tray through a second conveying path. After the abnormality factor in the second heating device is removed and the sheet discharged to the discharge tray through the second conveying path is set in a paper refeeding tray, a sheet feeding portion feeds the sheet set in the paper refeeding tray to the second heating device.Type: ApplicationFiled: September 12, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Hidehiko Kinoshita, Jun Yamaguchi, Atsushi Nakagawa, Masaaki Moriya
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Publication number: 20070025751Abstract: A fixing apparatus comprises: a fixing rotary body; a rotary body provided with an interval from the fixing rotary body; an endless belt rotating in a condition in which it is wound around the fixing rotary body and the rotary body; a pressure rotary body which makes a pressure contact with the fixing roller across the endless belt; a heater for heating a recording material conveyed by the endless belt; a cooling unit for cooling a recording material conveyed by the endless belt and heated by the heater; and an error detecting means for detecting an error in conveyance of the recording material.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Nakagawa, Hidehiko Kinoshita, Jun Yamaguchi, Masaaki Moriya
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Publication number: 20060220305Abstract: A sheet discriminating apparatus includes a pair of conveying rotary members for conveying a sheet while rotating with the sheet sandwiched between the pair of conveying rotary members, a vibration detecting sensor for detecting vibrations of the pair of conveying rotary members. The sheet discriminating portion further includes a discriminating portion for making a discrimination in a type of the sheet based on the vibrations detected by the vibration detecting sensor.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Masahiro Serizawa, Hidehiko Kinoshita, Hitoshi Kato, Katsuyuki Yamazaki, Kenji Morita, Yuichi Yamamoto
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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: 20060131301Abstract: An image heating apparatus includes magnetic flux generating means; a heat generating element for generating heat by a magnetic flux generated by the magnetic flux generating means, the heat generating element being effective to heat an image on a recording material; electric power supplying means for supplying electric power to the magnetic flux generating means; electric power changing means for changing electric power to be supplied to the magnetic flux generating means 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 generating means to reaching of a temperature of the heat generating element to a predetermined level.Type: ApplicationFiled: December 16, 2005Publication date: June 22, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Tomoichiro Ohta, Manabu Yamauchi, Hiroto Nishihara, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Takamitsu Hirayama
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Patent number: 7053345Abstract: A heating apparatus has a magnetic flux generator and a rotatable induction heating element for generating heat through electromagnetic induction by the action of magnetic flux generated by the magnetic flux generator, and heats a material to be heated by causing the material to be heated to contact the induction heating element. The heating apparatus further includes a thermistor for detecting a surface temperature of the induction heating element, power supply circuits for controlling power to be supplied to the magnetic flux generator on the basis of signals from the temperature detection, a Curie temperature reaching detector for detecting that the temperature of the induction heating element reaches the Curie temperature, and control circuits for detecting that the material to be heated is wound around the induction heating element on the basis of signals from the thermistor and the Curie temperature reaching detector.Type: GrantFiled: September 8, 2005Date of Patent: May 30, 2006Assignee: Canon Kabushiki KaishaInventors: Kenji Fukushi, Manabu Yamauchi, Hiroto Nishihara, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichirou Ohta, Takamitsu Hirayama
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Patent number: 7030345Abstract: 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: March 14, 2005Date of Patent: April 18, 2006Assignee: Canon Kabushiki KaishaInventors: Hiroto Nishihara, Manabu Yamauchi, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichiro Ohta, Takamitsu Hirayama
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Publication number: 20060072940Abstract: A color image forming apparatus which is capable of preventing deterioration in image formation quality caused by vibrations of a developing unit without halting an image forming operation and using a simple construction. A developing rotary unit incorporates developing devices corresponding to respective ones of a plurality of image formation colors. In forming an image, the developing rotary unit is moved to location for development of an image of each of the plurality of image formation colors. The level of vibrations applied to the developing rotary unit is detected, and the drive control pattern for the developing rotary unit is determined depending on the detected level of vibrations.Type: ApplicationFiled: September 30, 2005Publication date: April 6, 2006Applicant: Canon Kabushiki KaishaInventors: Kenji Morita, Hidehiko Kinoshita, Hitoshi Kato, Masahiro Serizawa, Katsuyuki Yamazaki, Yuichi Yamamoto
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Patent number: 6987251Abstract: A heating apparatus has a magnetic flux generator and a rotatable induction heating element for generating heat through electromagnetic induction by the action of magnetic flux generated by the magnetic flux generator, and heats a material to be heated by causing the material to be heated to contact the induction heating element. The heating apparatus further includes a thermistor for detecting a surface temperature of the induction heating element, power supply circuits for controlling power to be supplied to the magnetic flux generator on the basis of signals from the temperature detection, a Curie temperature reaching detector for detecting that the temperature of the induction heating element reaches the Curie temperature, and control circuits for detecting that the material to be heated is wound around the induction heating element on the basis of signals from the thermistor and the Curie temperature reaching detector.Type: GrantFiled: December 22, 2004Date of Patent: January 17, 2006Assignee: Canon Kabushiki KaishaInventors: Kenji Fukushi, Manabu Yamauchi, Hiroto Nishihara, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichirou Ohta, Takamitsu Hirayama
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Publication number: 20060006169Abstract: A heating apparatus has a magnetic flux generator and a rotatable induction heating element for generating heat through electromagnetic induction by the action of magnetic flux generated by the magnetic flux generator, and heats a material to be heated by causing the material to be heated to contact the induction heating element. The heating apparatus further includes a thermistor for detecting a surface temperature of the induction heating element, power supply circuits for controlling power to be supplied to the magnetic flux generator on the basis of signals from the temperature detection, a Curie temperature reaching detector for detecting that the temperature of the induction heating element reaches the Curie temperature, and control circuits for detecting that the material to be heated is wound around the induction heating element on the basis of signals from the thermistor and the Curie temperature reaching detector.Type: ApplicationFiled: September 8, 2005Publication date: January 12, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Fukushi, Manabu Yamauchi, Hiroto Nishihara, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichirou Ohta, Takamitsu Hirayama
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Publication number: 20050205560Abstract: A heating apparatus, for heating a material P to be heated by heat from a heat generation member 1 which has a predetermined curie temperature characteristic and generates heat by magnetic flux produced by a magnetic flux generation means 3, includes a discrimination means for discriminating whether or not the curie temperature characteristic of the heat generation member 1 is a predetermined characteristic and a control means for terminating supply of electric power to the magnetic flux generation means when the discrimination means determines that the curie temperature characteristic is not the predetermined characteristic.Type: ApplicationFiled: March 14, 2005Publication date: September 22, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Hiroto Nishihara, Manabu Yamauchi, Kenji Fukushi, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichirou Ohta, Takamitsu Hirayama
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Publication number: 20050173416Abstract: A heating apparatus includes a magnetic flux generation means 25 and a rotatable induction heating element 21 for generating heat through electromagnetic induction by the action of magnetic flux generated by the magnetic flux generation means, and heats a material to be heated by causing the material to be heated to contact the induction heating element 21.Type: ApplicationFiled: December 22, 2004Publication date: August 11, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Fukushi, Manabu Yamauchi, Hiroto Nishihara, Yasuyuki Aiko, Hidehiko Kinoshita, Tomoichirou Ohta, Takamitsu Hirayama
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Patent number: 6842592Abstract: An image forming apparatus includes an image forming device for forming an unfixed image on a recording material transported thereto, the image forming device being capable of continuously effecting image formation on recording materials differing in the width thereof in a direction orthogonal to the transport direction thereof, a fixing device having a heat member and for fixing the unfixed image by the use of heat and pressure, and a recording material changeover device capable, when images are to be continuously formed on recording materials smaller in the width thereof in the direction orthogonal to the transport direction than a maximum width with which the recording materials can be passed, of changing over the recording materials to recording materials greater in the width thereof in the direction orthogonal to the transport direction than the recording materials on which images are being formed in the course of continuous image formation.Type: GrantFiled: August 19, 2003Date of Patent: January 11, 2005Assignee: Canon Kabushiki KaishaInventor: Hidehiko Kinoshita
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Patent number: 6778787Abstract: A first reversing inlet path and a second reversing inlet path are branched from a path for transporting a sheet having an image formed thereon by a printer unit. A first reversing path and a second reversing path are connected respectively to the first reversing inlet path and the second reversing inlet path. The sheet having the image formed thereon by the printer unit is transported through the first reversing inlet path or the second reversing inlet path for reversing the sheet. When one of the first reversing inlet path and the second reversing inlet path is unusable, the sheet reversing operation is continued using the other reversing inlet path.Type: GrantFiled: March 21, 2003Date of Patent: August 17, 2004Assignee: Canon Kabushiki KaishaInventors: Hidehiko Kinoshita, Manabu Yamauchi, Shigeo Aoyagi
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Publication number: 20040052542Abstract: An image forming apparatus includes an image forming device for forming an unfixed image on a recording material transported thereto, the image forming device being capable of continuously effecting image formation on recording materials differing in the width thereof in a direction orthogonal to the transport direction thereof, a fixing device having a heat member and for fixing the unfixed image by the use of heat and pressure, and a recording material changeover device capable, when images are to be continuously formed on recording materials smaller in the width thereof in the direction orthogonal to the transport direction than a maximum width with which the recording materials can be passed, of changing over the recording materials to recording materials greater in the width thereof in the direction orthogonal to the transport direction than the recording materials on which images are being formed in the course of continuous image formation.Type: ApplicationFiled: August 19, 2003Publication date: March 18, 2004Applicant: CANON KABUSHIKI KAISHAInventor: Hidehiko Kinoshita
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Patent number: 6640064Abstract: An image heating apparatus has a heat generating element for generating heat upon electric energization; a substrate supporting the heat generating element; a temperature detecting member for detecting a temperature of the substrate; an A/D converter for A/D conversion of an output of the temperature detecting member; a photo-coupler for converting an output of the A/D converter to a light signal and outputting the light signal; and an abnormality detecting unit for detecting an abnormal temperature on the basis of an output of the photo-coupler.Type: GrantFiled: February 14, 2002Date of Patent: October 28, 2003Assignee: Canon Kabushiki KaishaInventor: Hidehiko Kinoshita
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Publication number: 20030190179Abstract: A first reversing inlet path and a second reversing inlet path are branched from a path for transporting a sheet having an image formed thereon by a printer unit. A first reversing path and a second reversing path are connected respectively to the first reversing inlet path and the second reversing inlet path. The sheet having the image formed thereon by the printer unit is transported through the first reversing inlet path or the second reversing inlet path for reversing the sheet. When one of the first reversing inlet path and the second reversing inlet path is unusable, the sheet reversing operation is continued using the other reversing inlet path.Type: ApplicationFiled: March 21, 2003Publication date: October 9, 2003Applicant: Canon Kabushiki KaishaInventors: Hidehiko Kinoshita, Manabu Yamauchi, Shigeo Aoyagi
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Patent number: 6621237Abstract: A gas-discharge lamp lighting apparatus includes: a power conditioning unit regulating power supplied from a power source, and outputting voltages with mutually different levels from two output terminals; a switching circuit unit coupled between the output terminals of the power conditioning unit and including at least one switching element; and a pulse transformer generating a high-voltage pulse, placed in a circuit connecting the output terminals of the switching circuit unit and a gas-discharge lamp. A first terminal of a primary winding of the pulse transformer is connected to a first output terminal of the power conditioning unit via a first output terminal of the switching circuit unit, and a second terminal of the primary winding is directly connected to a second output terminal of the power conditioning unit.Type: GrantFiled: August 22, 2001Date of Patent: September 16, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takahiro Urakabe, Hidehiko Kinoshita
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Patent number: 6548966Abstract: A discharge lamp lighting device comprises a booster circuit 2 for boosting the voltage of a DC power source 1 in response to the ON-OFF operation of a switching element 2c, a startup discharge circuit 9 for performing the startup discharge of a discharge lamp 10 according to the boosted DC voltage, a voltage detection circuit 5 for detecting the boosted DC voltage, a control circuit 7b for outputting the pulse modulated by pulse width modulation to the switching element 2c, and a control circuit 7a for controlling the pulse output from the control circuit 7b to the switching element 2c to intermittently enabling or disabling the passage thereof.Type: GrantFiled: December 13, 2001Date of Patent: April 15, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Taihei Kawasaka, Hidehiko Kinoshita, Akihiko Iwata, Takahiro Urakabe