Patents by Inventor Naoya Kikkawa
Naoya Kikkawa 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: 9091976Abstract: Provided is a fixing apparatus that can satisfy a quick start property while preventing degradation of paper non-passing sections of a fixing belt due to heat. In continuous image formation on a plurality of small-sized papers, if a temperature of the fixing belt at the reception of an execution command of a job is lower than a predetermined temperature, a heat equalizing roller is abutted to a pressure roller when an increase in the temperature of the paper non-passing sections of the fixing belt is feared along with progress of the job to thereby guarantee the quick start property. On the other hand, if the temperature of the fixing belt is higher than the predetermined temperature, the heat equalizing roller is abutted to the pressure roller from the beginning to suppress an increase in the temperature of the paper non-passing sections of the fixing belt.Type: GrantFiled: August 23, 2012Date of Patent: July 28, 2015Assignee: Canon Kabushiki KaishaInventor: Naoya Kikkawa
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Patent number: 9075360Abstract: An image heating apparatus includes an image heating roller, an excitation coil provided outside of the roller for causing electromagnetic induction heat generation in the roller, a magnetic core, provided opposed to the roller with the excitation coil therebetween, for directing a magnetic flux produced by the excitation coil to the roller, a retracting mechanism for retracting the magnetic core from the excitation coil, coil holder for holding a side of the excitation coil adjacent to the roller, and first and second pressing members for pressing the excitation coil against the holder in each of longitudinally opposite portions that are outside beyond the magnetic core.Type: GrantFiled: August 29, 2013Date of Patent: July 7, 2015Assignee: Canon Kabushiki KaishaInventor: Naoya Kikkawa
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Publication number: 20140064805Abstract: An image heating apparatus includes an image heating roller; an excitation coil provided outside of the roller for causing electromagnetic induction heat generation in the roller; a magnetic core, provided opposed to the roller through the excitation coil, for directing a magnetic flux produced by the excitation coil to the roller; a retracting mechanism for retracting the magnetic core from the excitation coil; a coil holder for holding a side of the excitation coil adjacent to the roller; and first and second pressing members for pressing the excitation coil against the holder in each of longitudinally opposite portions which are outside beyond the magnetic core.Type: ApplicationFiled: August 29, 2013Publication date: March 6, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Naoya Kikkawa
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Publication number: 20140064806Abstract: An image heating device includes a rotatable heating member configured to heat a toner image formed on a sheet with a toner containing a wax component, an exciting coil arranged outside the rotatable heating member and configured to generate a magnetic flux for subjecting the rotatable heating member to electromagnetic induction heating, a holder configured to hold the exciting coil, a magnetic flux suppression member configured to suppress a portion of a magnetic flux that acts on the rotatable heating member from the exciting coil, and a movement mechanism configured to move the magnetic flux suppression member in a space between the rotatable heating member and the holder. The holder has a region opposite the magnetic flux suppression member, and the region is coated with fluorine-based resin.Type: ApplicationFiled: September 4, 2013Publication date: March 6, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Naoya Kikkawa
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Publication number: 20130058673Abstract: Provided is a fixing apparatus that can satisfy a quick start property while preventing degradation of paper non-passing sections of a fixing belt due to heat. In continuous image formation on a plurality of small-sized papers, if a temperature of the fixing belt at the reception of an execution command of a job is lower than a predetermined temperature, a heat equalizing roller is abutted to a pressure roller when an increase in the temperature of the paper non-passing sections of the fixing belt is feared along with progress of the job to thereby guarantee the quick start property. On the other hand, if the temperature of the fixing belt is higher than the predetermined temperature, the heat equalizing roller is abutted to the pressure roller from the beginning to suppress an increase in the temperature of the paper non-passing sections of the fixing belt.Type: ApplicationFiled: August 23, 2012Publication date: March 7, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Naoya Kikkawa
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Patent number: 7379688Abstract: An image forming apparatus including a photosensitive drum unit (photosensitive unit) including a photosensitive body, a fixing unit for fixing a toner image transferred from the photosensitive body onto a recording material, and a vertical conveying path for conveying the recording material between the photosensitive drum unit and the fixing unit. Rails (guiding members) for guiding the removable photosensitive drum unit in a longitudinal direction are provided on the fixing unit. The rails are constituted of resin material capable of blocking heat transmitted towards the photosensitive drum unit.Type: GrantFiled: August 31, 2005Date of Patent: May 27, 2008Assignee: Canon Kabushiki KaishaInventor: Naoya Kikkawa
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Publication number: 20060236516Abstract: A recycling method of an apparatus having a part includes a collecting step of collecting a part from the apparatus; a processing step of processing the collected part to adapt it to an apparatus having different specifications; and a mounting step of mounting the part processed in the processing step on the apparatus.Type: ApplicationFiled: May 24, 2006Publication date: October 26, 2006Applicant: Canon Kabushiki KaishaInventors: Takayuki Kato, Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Patent number: 7082660Abstract: A recycling method of an apparatus having a part includes a collecting step of collecting a part from the apparatus; a processing step of processing the collected part to adapt it to an apparatus having different specifications; and a mounting step of mounting the part processed in the processing step on the apparatus.Type: GrantFiled: August 22, 2002Date of Patent: August 1, 2006Assignee: Canon Kabushiki KaishaInventors: Takayuki Kato, Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Publication number: 20060051129Abstract: An image forming apparatus including a photosensitive drum unit (photosensitive unit) including a photosensitive body, a fixing unit for fixing a toner image transferred from the photosensitive body onto a recording material, and a vertical conveying path for conveying the recording material between the photosensitive drum unit and the fixing unit. Rails (guiding members) for guiding the removable photosensitive drum unit in a longitudinal direction are provided on the fixing unit. The rails are constituted of resin material capable of blocking heat transmitted towards the photosensitive drum unit.Type: ApplicationFiled: August 31, 2005Publication date: March 9, 2006Applicant: CANON KABUSHIKI KAISHAInventor: Naoya Kikkawa
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Patent number: 6983113Abstract: A recycling method in an apparatus having a part includes a part removal step of removing a part from the apparatus, and a mounting step of mounting to the apparatus a part having a specification different from that of the removed part.Type: GrantFiled: August 28, 2002Date of Patent: January 3, 2006Assignee: Canon Kabushiki KaishaInventors: Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Takayuki Kato, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Publication number: 20050249520Abstract: A recycling method in an apparatus having a part includes a part removal step of removing a part from the apparatus, and a mounting step of mounting to the apparatus a part having a specification different from that of the removed part.Type: ApplicationFiled: July 15, 2005Publication date: November 10, 2005Applicant: Canon Kabushiki KaishaInventors: Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Takayuki Kato, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Patent number: 6950199Abstract: A digital copying machine having an information processing apparatus includes image forming means and sheet containing means. The image forming means forms an image on a sheet. The sheet containing means is disposed below the image forming means and contains sheets to be supplied to the image forming means, wherein the information processing apparatus is installed above or below the sheet containing means.Type: GrantFiled: February 22, 2001Date of Patent: September 27, 2005Assignee: Canon Kabushiki KaishaInventor: Naoya Kikkawa
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Publication number: 20030059229Abstract: A recycling method in an apparatus having a part includes a part removal step of removing a part from the apparatus; a mounting step of mounting to the apparatus a part having a specification different from that of the removed part.Type: ApplicationFiled: August 28, 2002Publication date: March 27, 2003Applicant: Canon Kabushiki KaishaInventors: Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Takayuki Kato, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Publication number: 20030044198Abstract: A recycling method of an apparatus having a part includes a collecting step of collecting a part from the apparatus; a processing step of processing the collected part to adapt it to an apparatus having different specifications; and a mounting step of mounting the part processed in the processing step on the apparatus.Type: ApplicationFiled: August 22, 2002Publication date: March 6, 2003Applicant: Canon Kabushiki KaishaInventors: Takayuki Kato, Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
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Publication number: 20010030764Abstract: An object of the present invention is to save an installation space. Another object of the present invention is to provide a digital copying machine which can prevent curl of a sheet due to excessive humidity. The present invention provides a digital copying machine having an information processing apparatus, which has image forming means for forming an image on a sheet, and sheet containing means disposed below the image forming means and adapted to contain sheets to be sullied to the image forming means, wherein the information processing apparatus is installed above or below the sheet containing means.Type: ApplicationFiled: February 22, 2001Publication date: October 18, 2001Inventor: Naoya Kikkawa