Patents by Inventor Toshiyuki Noda

Toshiyuki Noda 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).

  • Publication number: 20190235365
    Abstract: A light source apparatus includes a plurality of light sources, a heat receiver configured to receive heat from the plurality of light sources, a cooler configured to cool the heat receiver, a first detector configured to detect a temperature near a first light source among the plurality of light sources, a second detector configured to detect a temperature near a second light source among the plurality of light sources; and a controller configured to control the cooler based on detection results of the first detector and the second detector. When the detection result of the first detector cannot be used, the controller controls the cooler based on a value of the detection result of the second detector without using the detection result of the first detector.
    Type: Application
    Filed: January 23, 2019
    Publication date: August 1, 2019
    Inventor: Toshiyuki Noda
  • Patent number: 10310317
    Abstract: A light modulation element unit includes a light modulation element having a light modulator configured to modulate incident light and a cover glass that covers a light incident surface of the light modulator, a light shielding member, disposed along a surface of the cover glass, which has an opening in which light going to the light modulator passes and a light shield configured to shield light that does not pass the opening, and a heat radiation member provided in a direction different from a direction of the cover glass with respect to the light modulation element. The light shielding member has an extension that extends to outside of the cover glass and faces the heat radiation member. A first gap between the extension and the heat radiation member is smaller than a second gap between the light shield and the surface of the cover glass.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: June 4, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koichi Yusa, Toshiyuki Noda
  • Publication number: 20180173086
    Abstract: A light source apparatus includes a light source, a disk held to be rotatable about a rotation axis, a wavelength conversion member arranged on the disk and configured to convert a wavelength of light from the light source, and a storage member configured to store the disk, wherein, inside of the storage member, a plurality of circumferential wall portions centering on the rotation axis is arranged integrally with the storage member.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 21, 2018
    Inventor: Toshiyuki Noda
  • Patent number: 9565407
    Abstract: A projection display apparatus includes a light shielding member provided with an opening through which light from a light source passes, and a light modulation element unit configured to face the light shielding member to be illuminated by the light passing through the opening of the light shielding member, the light shielding member has a first region and a second region that is located between the first region and the opening, the light modulation element unit has a third region facing the first region, and a fourth region facing the second region, and a first average temperature gradient between the first region and the third region is greater than a second average temperature gradient between the second region and the fourth region.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Yusa, Toshiyuki Noda
  • Publication number: 20160337624
    Abstract: A light modulation element unit includes a light modulation element having a light modulator configured to modulate incident light and a cover glass that covers a light incident surface of the light modulator, a light shielding member, disposed along a surface of the cover glass, which has an opening in which light going to the light modulator passes and a light shield configured to shield light that does not pass the opening, and a heat radiation member provided in a direction different from a direction of the cover glass with respect to the light modulation element. The light shielding member has an extension that extends to outside of the cover glass and faces the heat radiation member. A first gap between the extension and the heat radiation member is smaller than a second gap between the light shield and the surface of the cover glass.
    Type: Application
    Filed: May 5, 2016
    Publication date: November 17, 2016
    Inventors: Koichi Yusa, Toshiyuki Noda
  • Publication number: 20150381952
    Abstract: A projection display apparatus includes a light shielding member provided with an opening through which light from a light source passes, and a light modulation element unit configured to face the light shielding member to be illuminated by the light passing through the opening of the light shielding member, the light shielding member has a first region and a second region that is located between the first region and the opening, the light modulation element unit has a third region facing the first region, and a fourth region facing the second region, and a first average temperature gradient between the first region and the third region is greater than a second average temperature gradient between the second region and the fourth region.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 31, 2015
    Inventors: Koichi Yusa, Toshiyuki Noda
  • Patent number: 8608316
    Abstract: An image projection apparatus is disclosed which is capable of reducing noise when airflows from plural flow paths are taken in into a fan and exhausted therefrom. The apparatus comprises a first flow path through which a first airflow for cooling a light source passes, a second flow path through which a second airflow for cooling constituent parts other than the light source passes, a fan which exhausts air introduced from the first and second flow paths to the outside of the apparatus, a third flow path which introduces a third airflow to an exhaust area between the light source and the fan in the first flow path, and a light-shielding member which is provided in the exhaust area and shields the light from the light source.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: December 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Noda, Shin-Ichi Katsumata
  • Patent number: 8408716
    Abstract: The image projection apparatus includes an exhaust air outlet through which an exhaust air flows out from an inside of the apparatus to an outside thereof, an air inlet through which an external air flows in from the outside of the apparatus to the inside thereof, a temperature detector that detects a temperature of the external air flowing into the inside of the apparatus through the air inlet, and a controller that performs a protection operation when one of a predetermined temperature corresponding to a temperature of the exhaust air and a predetermined temperature change caused by flowing in of the exhaust air through the air inlet is detected by the temperature detector. The apparatus enables quick detection of a state in which the exhaust air outlet is blocked to perform the protection operation.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 2, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Noda, Ayumu Kameoka
  • Publication number: 20130021584
    Abstract: An image projection apparatus is disclosed which is capable of reducing noise when airflows from plural flow paths are taken in into a fan and exhausted therefrom. The apparatus comprises a first flow path through which a first airflow for cooling a light source passes, a second flow path through which a second airflow for cooling constituent parts other than the light source passes, a fan which exhausts air introduced from the first and second flow paths to the outside of the apparatus, a third flow path which introduces a third airflow to an exhaust area between the light source and the fan in the first flow path, and a light-shielding member which is provided in the exhaust area and shields the light from the light source.
    Type: Application
    Filed: August 1, 2012
    Publication date: January 24, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiyuki NODA, Shin-Ichi Katsumata
  • Patent number: 8317336
    Abstract: An image projection apparatus is disclosed which is capable of reducing noise when airflows from plural flow paths are taken in into a fan and exhausted therefrom. The apparatus comprises a first flow path through which a first airflow for cooling a light source passes, a second flow path through which a second airflow for cooling constituent parts other than the light source passes, a fan which exhausts air introduced from the first and second flow paths to the outside of the apparatus, a third flow path which introduces a third airflow to an exhaust area between the light source and the fan in the first flow path, and a light-shielding member which is provided in the exhaust area and shields the light from the light source.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Noda, Shin-ichi Katsumata
  • Publication number: 20120062854
    Abstract: The image projection apparatus includes an exhaust air outlet through which an exhaust air flows out from an inside of the apparatus to an outside thereof, an air inlet through which an external air flows in from the outside of the apparatus to the inside thereof, a temperature detector that detects a temperature of the external air flowing into the inside of the apparatus through the air inlet, and a controller that performs a protection operation when one of a predetermined temperature corresponding to a temperature of the exhaust air and a predetermined temperature change caused by flowing in of the exhaust air through the air inlet is detected by the temperature detector. The apparatus enables quick detection of a state in which the exhaust air outlet is blocked to perform the protection operation.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiyuki NODA, Ayumu KAMEOKA
  • Patent number: 8061852
    Abstract: The image projection apparatus includes an exhaust air outlet through which an exhaust air flows out from an inside of the apparatus to an outside thereof, an air inlet through which an external air flows in from the outside of the apparatus to the inside thereof, a temperature detector which detects a temperature of the external air flowing into the inside of the apparatus through the air inlet, and a controller which performs a protection operation when one of a predetermined temperature corresponding to a temperature of the exhaust air and a predetermined temperature change caused by flowing in of the exhaust air through the air inlet is detected by the temperature detector. The apparatus enables quick detection of a state in which the exhaust air outlet is blocked to perform the protection operation.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Noda, Ayumu Kameoka
  • Patent number: 7988303
    Abstract: The image projection apparatus includes a heat generating member disposed inside the apparatus, an exhaust fan exhausting an air that has cooled the heat generating member to the outside of the apparatus, and a duct guiding the air from the heat generating member to the exhaust fan. An outflow opening of the duct is oriented in a direction different from an inflow direction of the air into an inflow opening thereof. At least one air guiding wall is provided inside the duct, which forms plural airflow paths within a cross section extending along the inflow direction and an outflow direction of the air. The apparatus is capable of reducing unevenness in flow rate of the air when guiding the air toward the exhaust fan using a bent-type duct.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Noda
  • Patent number: 7976171
    Abstract: The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperature. The controller measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: July 12, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayumu Kameoka, Toshiyuki Noda
  • Patent number: 7934839
    Abstract: The image projection apparatus includes a light source lamp including a discharge light emitting tube and a reflector, the discharge light emitting tube including a light emitting portion disposed inside of the reflector and an electrode portion disposed outside of the reflector, a cooling fan, and a duct configured to guide a cooling air flowed by operation of the cooling fan toward the light source lamp. The duct includes a first air guiding portion and a second air guiding portion that cause parts of the cooling air to respectively proceed toward a first area and a second area opposite to each other on an outer circumferential surface of the light emitting portion, and a third air guiding portion that causes another part of the cooling air to proceed toward the electrode portion.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 3, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Noda
  • Patent number: 7891846
    Abstract: A light source apparatus is disclosed which allows effective cooling of an arc tube even with a small amount of wind. The light source apparatus has a light emitter and a reflector which reflects light from the light emitter and causes the reflected light to emerge. The light source apparatus also has a wind-guiding member which has a flow inlet and a flow outlet of cooling wind and has a wall portion at a position opposite to the flow inlet, the wall portion guiding the cooling wind toward the light emitter in the reflector. The light source apparatus which has a reflector to which an arc tube is fixed via a connecting member, and has a first flow path on which cooling wind from a fan flows to cool an area of the arc tube closer to the connecting member, and a second flow path on which cooling wind from the fan flows to cool an area of the arc tube closer to a light emitting portion. The second flow path is formed separately from the first flow path.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: February 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Noda
  • Publication number: 20090051881
    Abstract: The image projection apparatus includes a light source lamp including a discharge light emitting tube and a reflector, the discharge light emitting tube including a light emitting portion disposed inside of the reflector and an electrode portion disposed outside of the reflector, a cooling fan, and a duct configured to guide a cooling air flowed by operation of the cooling fan toward the light source lamp. The duct includes a first air guiding portion and a second air guiding portion that cause parts of the cooling air to respectively proceed toward a first area and a second area opposite to each other on an outer circumferential surface of the light emitting portion, and a third air guiding portion that causes another part of the cooling air to proceed toward the electrode portion.
    Type: Application
    Filed: July 24, 2008
    Publication date: February 26, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Toshiyuki Noda
  • Publication number: 20090040471
    Abstract: The image projection apparatus includes an exhaust air outlet through which an exhaust air flows out from an inside of the apparatus to an outside thereof, an air inlet through which an external air flows in from the outside of the apparatus to the inside thereof, a temperature detector which detects a temperature of the external air flowing into the inside of the apparatus through the air inlet, and a controller which performs a protection operation when one of a predetermined temperature corresponding to a temperature of the exhaust air and a predetermined temperature change caused by flowing in of the exhaust air through the air inlet is detected by the temperature detector. The apparatus enables quick detection of a state in which the exhaust air outlet is blocked to perform the protection operation.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiyuki Noda, Ayumu Kameoka
  • Publication number: 20090040468
    Abstract: The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperature. The controller measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ayumu Kameoka, Toshiyuki Noda
  • Publication number: 20090027627
    Abstract: The image projection apparatus includes a heat generating member disposed inside the apparatus, an exhaust fan exhausting an air that has cooled the heat generating member to the outside of the apparatus, and a duct guiding the air from the heat generating member to the exhaust fan. An outflow opening of the duct is oriented in a direction different from an inflow direction of the air into an inflow opening thereof. At least one air guiding wall is provided inside the duct, which forms plural airflow paths within a cross section extending along the inflow direction and an outflow direction of the air. The apparatus is capable of reducing unevenness in flow rate of the air when guiding the air toward the exhaust fan using a bent-type duct.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Toshiyuki Noda