Patents by Inventor Kota Arimoto
Kota Arimoto 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).
-
Patent number: 7764895Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: GrantFiled: April 8, 2009Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventors: Jun Tomine, Ryo Hanashi, Kota Arimoto, Taisuke Matsuura
-
Publication number: 20100180785Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: ApplicationFiled: January 26, 2010Publication date: July 22, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
-
Patent number: 7684724Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: GrantFiled: June 9, 2009Date of Patent: March 23, 2010Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
-
Publication number: 20090245845Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: ApplicationFiled: June 9, 2009Publication date: October 1, 2009Applicant: CANON KABUSHIKI KAISHIInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
-
Publication number: 20090202269Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: ApplicationFiled: April 8, 2009Publication date: August 13, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Jun Tomine, Ryo Hanashi, Kota Arimoto, Taisuke Matsuura
-
Patent number: 7561818Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: GrantFiled: September 5, 2006Date of Patent: July 14, 2009Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
-
Patent number: 7430389Abstract: An image forming apparatus includes a first image bearing member; a first developing means forming a toner image of transparent toner on an electrostatic latent image formed on the first image bearing member; a second image bearing member having an electrostatic capacity per unit area which is smaller than an electrostatic capacity per unit area of the first image bearing member; second developing means for forming a toner image of chromatic toner on an electrostatic latent image formed on the second image bearing member, wherein a maximum toner amount of the toner image formed on the first image bearing member is larger than a maximum toner amount of the toner image formed on the second image bearing member; and transferring means for transferring the transparent toner image and the chromatic toner image onto a transfer material.Type: GrantFiled: August 30, 2006Date of Patent: September 30, 2008Assignee: Canon Kabushiki KaishaInventors: Akihiro Noguchi, Tadayoshi Nishihama, Kota Arimoto, Tadashi Fukuda
-
Patent number: 7426360Abstract: A developing apparatus includes a developer carrying member for carrying thereon and conveying a developer to a portion opposed to an image bearing member; a first chamber having the developer carrying member disposed in an opening thereof; a conveying member disposed in the first chamber for conveying the developer; a second chamber to which the developer is supplied from the first chamber through a first communicating portion and which supplies the developer to the first chamber through a second communicating portion to the first chamber; an agitating and conveying member disposed in the second chamber and rotatable to thereby agitate and convey the developer, wherein the second chamber and the agitating and conveying member are disposed while being inclined with respect to a horizontal direction; and developer supplying means for supplying a developer to be supplied, from just above an area of the second chamber.Type: GrantFiled: August 1, 2005Date of Patent: September 16, 2008Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Shigeru Tanaka, Shinya Suzuki
-
Patent number: 7421219Abstract: An image forming apparatus, wherein a heating member heats a toner image formed on a sheet by an image forming portion, including: a first detector detecting a temperature of a first area of a contact area, which is contactable with the sheet, of the heating member, when a set width of the sheet is a predetermined width; a controller for controlling the heating member based on the output of the first detector; a second detector detecting a temperature of a second area outside of the first area; a cooler cooling the second area based on the output of the second detector; a third detector detecting a temperature of a third area on an end side in the width direction within the contact area; and a stopper stopping the image heating operation based on the output of the third detector.Type: GrantFiled: September 6, 2006Date of Patent: September 2, 2008Assignee: Canon Kabushiki KaishaInventors: Taisuke Matsuura, Kota Arimoto
-
Patent number: 7349655Abstract: A developing device configured to carry out development of an electrostatic image using color toner particles and transparent toner particles includes color and transparent developing units configured to store toner particles, carrier particles, and additive particles and configured to carry out development of the electrostatic image; color and transparent developer replenishment containers configured to store replenishment developers including at least the toner particles and the carrier particles and configured to replenish developing units with the replenishment developers; and color and transparent developers openings provided at the developing units and configured to discharge the developers in the developing units outside the developing units while replenishing the developing units with the replenishment developers, wherein the carrier particle weight ratio of the transparent replenishment developer is higher than the carrier particle weight ratio of the color replenishment developer.Type: GrantFiled: March 1, 2006Date of Patent: March 25, 2008Assignee: Canon Kabushiki KaishaInventors: Tadashi Fukuda, Kota Arimoto, Tadayoshi Nishihama, Akihiro Noguchi
-
Patent number: 7349653Abstract: A developing apparatus includes a developing device for color receiving colored toner and a carrier and developing an electrostatic image; a developing device for transparence receiving transparent toner and a carrier and developing the electrostatic image; a developer replenishment container for color receiving a replenishment developer for color; a developer replenishment container for transparence receiving a replenishment developer for transparence; a developer discharge aperture for color; and a developer discharge aperture for transparence, respectively, discharging developers in the developing devices to the outside of the developing devices in association with replenishment with the replenishment developers and a related image forming method. The replenishment developer for transparence has a carrier weight ratio lower than a carrier weight ratio in the replenishment developer for color.Type: GrantFiled: February 9, 2006Date of Patent: March 25, 2008Assignee: Canon Kabushiki KaishaInventors: Tadayoshi Nishihama, Tadashi Fukuda, Kota Arimoto, Akihiro Noguchi
-
Patent number: 7263315Abstract: Provided is a developing apparatus, including: a developer carrying member for carrying a developer containing toner and a carrier; a first chamber having an opening in which the developer carrying member is disposed; a carrying member for carrying the developer in a longitudinal direction of the developer carrying member, the carrying member being disposed in the first chamber; a second chamber to which the developer is supplied from the first chamber through a first connection portion communicating with the first chamber and which supplies the developer to the first chamber through a second connection portion communicating with the first chamber; a spiral carrying member for agitating and carrying the developer by rotation, the spiral carrying member being obliquely disposed in the second chamber at an angle of 2° or more and 10° or less; and a developer replenishing apparatus for replenishing a developer for replenishment to a developer replenishment position in the second chamber, in which when a height wType: GrantFiled: July 19, 2005Date of Patent: August 28, 2007Assignee: Canon Kabushiki KaishaInventors: Shigeru Tanaka, Kota Arimoto, Shinya Suzuki
-
Publication number: 20070059012Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: ApplicationFiled: September 11, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Jun Tomine, Ryo Hanashi, Kota Arimoto, Taisuke Matsuura
-
Publication number: 20070059021Abstract: An image heating apparatus including: an image heating member for heating an image formed on a sheet at a nip portion; a temperature detector for detecting temperature of a predetermined region of the image heating member; a cooler for cooling the predetermined region; and an activating device for activating the cooler to perform a cooling operation in accordance with an output of the temperature detector, wherein the apparatus has a first mode of stopping a cooling operation in accordance with an output of the temperature detector; and a second mode of stopping the cooling operation in accordance with an end of image heating processing irrespective of the output of the temperature detecting device. The image heating apparatus is capable of suppressing unnecessary energy consumption, and of eliminating uneven glossiness due to a reduced temperature region at a boundary between a sheet passing portion and a non-sheet passing portion.Type: ApplicationFiled: September 6, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Ryo Hanashi, Kota Arimoto, Taisuke Matsuura, Jun Tomine
-
Publication number: 20070059001Abstract: An image forming apparatus, wherein a heating member heats a toner image formed on a sheet by an image forming portion, including: a first detector detecting a temperature of a first area of a contact area, which is contactable with the sheet, of the heating member, when a set width of the sheet is a predetermined width; a controller for controlling the heating member based on the output of the first detector; a second detector detecting a temperature of a second area outside of the first area; a cooler cooling the second area based on the output of the second detector; a third detector detecting a temperature of a third area on an end side in the width direction within the contact area; and a stopper stopping the image heating operation based on the output of the third detector.Type: ApplicationFiled: September 6, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: TAISUKE MATSUURA, KOTA ARIMOTO
-
Publication number: 20070059010Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: ApplicationFiled: September 5, 2006Publication date: March 15, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
-
Publication number: 20070053726Abstract: An image forming apparatus includes a first image bearing member; a first developing means forming a toner image of transparent toner on an electrostatic latent image formed on the first image bearing member; a second image bearing member having an electrostatic capacity per unit area which is smaller than an electrostatic capacity per unit area of the first image bearing member; second developing means for forming a toner image of chromatic toner on an electrostatic latent image formed on the second image bearing member, wherein a maximum toner amount of the toner image formed on the first image bearing member is larger than a maximum toner amount of the toner image formed on the second image bearing member; and transferring means for transferring the transparent toner image and the chromatic toner image onto a transfer material.Type: ApplicationFiled: August 30, 2006Publication date: March 8, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Akihiro Noguchi, Tadayoshi Nishihama, Kota Arimoto, Tadashi Fukuda
-
Publication number: 20060198661Abstract: A developing apparatus including: a developing device for color receiving colored toner and a carrier and developing an electrostatic image; a developing device for transparence receiving transparent toner and a carrier and developing the electrostatic image; a developer replenishment container for color receiving a replenishment developer for color with which the developing device for color is to be replenished; a developer replenishment container for transparence receiving a replenishment developer for transparence with which the developing device for transparence is to be replenished; a developer discharge aperture for color discharging a developer in the developing device for color to the outside of the developing device in association with replenishment with the replenishment developer for color; and a developer discharge aperture for transparence discharging a developer in the developing device for transparence to the outside of the developing device in association with replenishment with the replenishmType: ApplicationFiled: February 9, 2006Publication date: September 7, 2006Applicant: Canon Kabushiki KaishaInventors: Tadayoshi Nishihama, Tadashi Fukuda, Kota Arimoto, Akihiro Noguchi
-
Publication number: 20060198662Abstract: A developing device configured to carry out development of an electrostatic image using color toner particles and transparent toner particles includes color and transparent developing units configured to store toner particles, carrier particles, and additive particles and configured to carry out development of the electrostatic image; color and transparent developer replenishment containers configured to store replenishment developers including at least the toner particles and the carrier particles and configured to replenish developing units with the replenishment developers; and color and transparent developers openings provided at the developing units and configured to discharge the developers in the developing units outside the developing units while replenishing the developing units with the replenishment developers, wherein the carrier particle weight ratio of the transparent replenishment developer is higher than the carrier particle weight ratio of the color replenishment developer.Type: ApplicationFiled: March 1, 2006Publication date: September 7, 2006Applicant: Canon Kabushiki KaishaInventors: Tadashi Fukuda, Kota Arimoto, Tadayoshi Nishihama, Akihiro Noguchi
-
Publication number: 20060029431Abstract: Provided is a developing apparatus, including: a developer carrying member for carrying a developer containing toner and a carrier; a first chamber having an opening in which the developer carrying member is disposed; a carrying member for carrying the developer in a longitudinal direction of the developer carrying member, the carrying member being disposed in the first chamber; a second chamber to which the developer is supplied from the first chamber through a first connection portion communicating with the first chamber and which supplies the developer to the first chamber through a second connection portion communicating with the first chamber; a spiral carrying member for agitating and carrying the developer through rotation, the spiral carrying member being obliquely disposed in the second chamber at an angle of 2° or more and 10° or less; and a developer replenishing apparatus for replenishing a developer for replenishment to a developer replenishment position in the second chamber, in which when a heiType: ApplicationFiled: July 19, 2005Publication date: February 9, 2006Applicant: Canon Kabushiki KaishaInventors: Shigeru Tanaka, Kota Arimoto, Shinya Suzuki