Patents by Inventor Satoshi Kinouchi

Satoshi Kinouchi 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).

  • APPARATUS FOR FIXING TONER ON TRANSFERRED MATERIAL
    Publication number: 20070114226
    Abstract: The present invention relates to a temperature detection apparatus having a radiant temperature detection section including at least a ray emission portion which radiates at least rays and a ray detection portion which detects the rays, and capable of detecting temperature without contacting a detection object, a first atmospheric temperature detection section which outputs temperature information having a high temperature follow-up property in a case where the atmospheric temperature of the radiant temperature detection section is not more than predetermined temperature, and a second atmospheric temperature detection section which outputs temperature information having a high temperature follow-up property in a case where the atmospheric temperature of the radiant temperature detection section exceeds the predetermined temperature.
    Type: Application
    Filed: January 5, 2007
    Publication date: May 24, 2007
    Inventors: Toshihiro SONE, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Fixing apparatus
    Publication number: 20070108191
    Abstract: A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input current, and a pressurization mechanism which can provide a predetermined pressure to the heating object, and a coil of the heating object is formed of a litz wire obtained by twisting the number of conductors having a small cross section which are not affected by the skin effect caused due to the frequency of the input current, the number of which allows passage of a quantity of current to be inputted.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 17, 2007
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Fixing apparatus using induction heating
    Patent number: 7215919
    Abstract: A fixing apparatus of one embodiment of the present invention has a heating member which is heated by induction heating, a pressing member which supplies a predetermined pressure to the heating member, and induction heating mechanisms which supply a predetermined magnetic field to the heating member. The induction heating mechanisms have a plurality of coils. By arranging the adjacent coils and adjacent coils to overlap, the temperature distribution in the length direction of the heating member can be made uniform.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: May 8, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Coil unit and fixing apparatus
    Publication number: 20070095820
    Abstract: According to one aspect of the present invention, there is disclosed a fixing apparatus including a mold (holding member) formed by injection molding to hold a coil so that the coil maintains a predetermined positional relation with respect to a heating roller, and capable of holding a temperature sensor which detects a temperature of the heating roller and a thermostat which detects an abnormal temperature of the heating roller in predetermined positions facing the heating roller.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 3, 2007
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Fuser and temperature control method
    Patent number: 7212761
    Abstract: According to one aspect of the present invention, there is provided a fixing apparatus having a non-contact temperature detecting unit which detects temperature by sensing infrared rays emitted from the a heating roller. A difference between a real temperature and the temperature detected by the non-contact temperature detecting unit, which is produced by time-lag until reaching the infrared rays emitted from the heating roller, is corrected.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 1, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Image forming apparatus
    Patent number: 7205515
    Abstract: In an image forming apparatus according to the present invention, a shield plate 202 which is made of a specific material and has a specific thickness is provided between an exciting coil and at least one of a first and a second magnetic field intensity measuring point P1, P2, which prevents a magnetic field of a specific magnetic field intensity or higher from leaking to the outside of the image forming apparatus or alleviates the effect of the magnetic field on the circuits in the apparatus or optionally installed devices.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: April 17, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kazuhiko Kikuchi, Kazushige Morihara, Satoshi Kinouchi, Osamu Takagi, Shin Yamauchi
  • Fixing device using induction heating
    Patent number: 7205512
    Abstract: An electrophotography fixing device has a heating roller and an induction heating device. In order to improve heat resistance, heat radiating performance and insulation performance and in order to appropriately uniformly heat the heating roller, in the induction heating device, induction heating coils wound onto a core are fixed by varnish mixed with mica, and the outside surfaces thereof are fixed by a heat resistant bundling band or a molded body of a heat resistant material, or coated with a heat resistant, insulating and thermal conductive sheet. Alternatively, the same sheets as the above described sheet are provided between the core and the coils and between the layers of the coils. In addition, the core is formed with a hole extending in axial directions or holes extending in directions perpendicular to the axial directions. Moreover, the coils are doubly insulated.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: April 17, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Fixing device of image forming apparatus with non-contact temperature sensor
    Patent number: 7203439
    Abstract: A fixing apparatus of an image forming apparatus of the present invention strikes a support plate having an infrared temperature sensor against a roller shaft of a heat roller, thereby, regardless of the part accuracy, keeps a gap between the heat roller and the infrared temperature sensor constant. By improvement of the temperature detection accuracy of the infrared temperature sensor, the temperature control of the heat roller is improved and toner images can be fixed always at a fixed temperature. The fixing property is improved and fixed images of high image quality free of ripple marks are obtained.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: April 10, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Fixing apparatus
    Patent number: 7186959
    Abstract: A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input current, and a pressurization mechanism which can provide a predetermined pressure to the heating object, and a coil of the heating object is formed of a litz wire obtained by twisting the number of conductors having a small cross section which are not affected by the skin effect caused due to the frequency of the input current, the number of which allows passage of a quantity of current to be inputted.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: March 6, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Fixing apparatus having an induction heating control circuit
    Patent number: 7184697
    Abstract: A fixing apparatus according to an embodiment of the present invention has a plurality of coils which are independently controlled by an inverter circuit. These coils have shapes to make the difference between the frequencies of the flowing high-frequency current out of an audible frequency range, preventing interference noise.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: February 27, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Apparatus for fixing toner on transferred material
    Patent number: 7177563
    Abstract: The present invention relates to a temperature detection apparatus having a radiant temperature detection section including at least a ray emission portion which radiates at least rays and a ray detection portion which detects the rays, and capable of detecting temperature without contacting a detection object, a first atmospheric temperature detection section which outputs temperature information having a high temperature follow-up property in a case where the atmospheric temperature of the radiant temperature detection section is not more than predetermined temperature, and a second atmospheric temperature detection section which outputs temperature information having a high temperature follow-up property in a case where the atmospheric temperature of the radiant temperature detection section exceeds the predetermined temperature.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: February 13, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Heating device and fixing device
    Publication number: 20060289484
    Abstract: A CPU detects a temperature of a central part of a heating roller. If the detected temperature does not exceed 180° C., the CPU drives a central coil or a side-end coil for 0.4 second in accordance with a temperature difference between the central part of the heating roller and a side-end part of the heating roller. Then, the CPU drives the side-end coil or central coil for 0.2 second. Thereafter, the CPU detects the temperature of the central part and repeats the driving control until the detected temperature reaches 180° C.
    Type: Application
    Filed: July 31, 2006
    Publication date: December 28, 2006
    Inventors: Satoshi Kinouchi, Osamu Takagi
  • Fixing apparatus
    Patent number: 7155156
    Abstract: A fixing apparatus according to the invention is provided with a heating roller 2 including an elastic member 2b and a metal conductive layer 2c. The elastic member has a greater outer diameter at its end portions than at its central portion. At least one air hole 100 is formed through the metal conductive layer 2c at a predetermined position opposing the small-diameter central portion of the elastic member. The air hole connects the outside to a clearance formed between the elastic member 2b and the metal conductive layer 2c.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: December 26, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshinori Tsueda, Satoshi Kinouchi, Osamu Takagi, Toshihiro Sone
  • Fixing mechanism for use in image forming apparatus
    Patent number: 7146127
    Abstract: In a fixing mechanism which heats a fixation member by generating heat in an endless member by using an induction current obtained from a current flowing through an induction coil, the present invention is characterized in that the induction coil is divided into a plurality of coils in a direction vertical to a moving direction of the fixation member and a coil to which power is supplied is switched according to needs.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: December 5, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Fuser and temperature control method
    Publication number: 20060245779
    Abstract: According to one aspect of the present invention, there is provided a fixing apparatus having a non-contact temperature detecting unit which detects temperature by sensing infrared rays emitted from the a heating roller. A difference between a real temperature and the temperature detected by the non-contact temperature detecting unit, which is produced by time-lag until reaching the infrared rays emitted from the heating roller, is corrected.
    Type: Application
    Filed: June 30, 2006
    Publication date: November 2, 2006
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Fixing unit
    Patent number: 7130556
    Abstract: A fixing device of the present invention has first and second thermistors which detect the temperatures at predetermined positions in the longitudinally direction of a heating roller, first and second coils which can increase independently the temperatures at the center and the end of the heating roller, a driving circuit which supply power alternately to the coils, first and second switching circuits which supply a predetermined power to each coil, a control unit, and a temperature detection circuit.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: October 31, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi
  • Image forming apparatus
    Patent number: 7113736
    Abstract: A distance defined by expression 2 is secured between the exciting coil and the protection cover. This not only prevents a magnetic field with a specific magnetic field intensity or higher from leaking to the outside but also reduces the effect on the circuits in the apparatus or optionally installed circuits (including a printer controller and a FAX controller).
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: September 26, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Kazuhiko Kikuchi, Kazushige Morihara, Satoshi Kinouchi, Osamu Takagi, Shin Yamauchi
  • Heat roller and fixing apparatus
    Publication number: 20060210332
    Abstract: A fixing apparatus according to the present invention comprises a heat roller 2 which comprises an elastic member 2b having an outer diameter which is different from another one in an axial direction, and an conductive layer 2c provided outside of the elastic member 2b, wherein a maximum outer diameter and a minimum outer diameter of the elastic member 2b has a difference therebetween ranging from 0.2 mm to 3.0 mm.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Inventors: Yoshinori Tsueda, Satoshi Kinouchi, Osamu Takagi, Toshihiro Sone
  • Fixing device of image forming apparatus
    Publication number: 20060210292
    Abstract: A fixing apparatus of an image forming apparatus of the present invention, in arrival timing of a temperature falling area of a heat roller passing a nip at opposite position ? of an induction heating coil from temperature detection position ? by an infrared temperature sensor around the heat roller, according to detection results by the infrared temperature sensor, controls an output value of the induction heating coil under control of an inverter circuit, heats and returns the heat roller in real time to a fixable temperature, and realizes energy conversation. At the time of arrival at the nip, the heat controller is always set to a fixed fixable temperature, thus in a fixed image, a high image quality free of ripple marks can be obtained.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 21, 2006
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Image forming apparatus and fixing apparatus
    Publication number: 20060210329
    Abstract: An image forming apparatus according to the present invention includes a heating roller 2 fixed at a predetermined position, a pressurizing roller 3 press-fitted to the heating roller 2 by a pressurizing mechanism 4 to be movable, and a hardness change detecting mechanism 310 which becomes electrically conductive when the pressurizing roller 3 moves due to thermal expansion of the heating roller 2, and which detects a hardness change of the heating roller 2.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 21, 2006
    Inventors: Yoshinori Tsueda, Satoshi Kinouchi, Osamu Takagi, Toshihiro Sone