Patents by Inventor Yasuhiro Soeda

Yasuhiro Soeda 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: 8665672
    Abstract: A process for producing a capacitive electromechanical conversion device by bonding together a substrate and a membrane member to form a cavity sealed between the substrate and the membrane member, the process for producing a capacitive electromechanical conversion device comprises the steps of: providing a gas release path penetrating from a bonded interface between the substrate and the membrane member to the outside, and forming the cavity by bonding the membrane member with the substrate with the gas release path provided; the gas release path being provided at a location where the path does not communicate with the cavity.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: March 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Soeda, Takahiro Ezaki
  • Publication number: 20130321039
    Abstract: A measuring device comprises a plurality of variable capacitors as sensor elements. The plurality of variable capacitors are provided with a drive circuit for each pair. The first electrodes of the two variable capacitors in each pair are electrically connected to each other. The drive circuit for each pair includes a bias supply for applying two AC bias voltages relatively 90° out of phase to the second electrodes respectively of the two variable capacitors to produce an output signal at the first electrodes connected to each other, a multiplier for multiplying the output signal by two AC signals relatively 90° out of phase to produce two multiplication signals, and an integrator for integrating the two multiplication signals for each cycle of the corresponding AC bias voltages to acquire two integration signals for the two variable capacitors.
    Type: Application
    Filed: May 17, 2013
    Publication date: December 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuhiro Soeda
  • Publication number: 20130313663
    Abstract: Provided is a capacitive electromechanical transducer manufactured by fusion bonding, which is capable of enhancing the performance by reducing fluctuations in initial deformation among diaphragms caused at positions having difference boundary conditions such as the bonding area. The capacitive electromechanical transducer includes a device, the device including at least one cellular structure including: a silicon substrate; a diaphragm; and a diaphragm supporting portion configured to support the diaphragm so that a gap is formed between one surface of the silicon substrate and the diaphragm. The device has, in its periphery, a groove formed in a layer shared with the diaphragm supporting portion.
    Type: Application
    Filed: January 16, 2012
    Publication date: November 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ayako Kato, Kazutoshi Torashima, Yasuhiro Soeda, Shinichiro Watanabe
  • Publication number: 20130302934
    Abstract: Provided is a method of manufacturing a capacitive electromechanical transducer using fusion bonding, which is capable of reducing fluctuations in initial deformation among diaphragms caused at positions having different boundary conditions such as the bonding area, thereby enhancing the uniformity of the transducer and stabilizing the sensitivity and the like. The method of manufacturing a capacitive electromechanical transducer includes: forming an insulating layer on a first silicon substrate and forming at least one recess; fusion bonding a second silicon substrate onto the insulating layer; and thinning the second silicon substrate and forming a silicon film. The method further includes, before the bonding of the second silicon substrate onto the insulating layer, forming a groove in the insulating layer at the periphery of the at least one recess.
    Type: Application
    Filed: January 24, 2012
    Publication date: November 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ayako Kato, Kazutoshi Torashima, Yasuhiro Soeda, Shinichiro Watanabe
  • Publication number: 20130256817
    Abstract: An element array comprises a plurality of elements having a first electrode and a second electrode with a gap therebetween; the first electrode is separated for each of the elements by grooves, an insulating connection substrate is bonded to the first electrode, and wirings are provided from the respective first electrodes through the connection substrate to the side opposite to the first electrodes.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 3, 2013
    Inventors: Takahiro Ezaki, Chienliu Chang, Yasuhiro Soeda, Kenji Tamamori
  • Patent number: 8466522
    Abstract: An element array comprises a plurality of elements having a first electrode and a second electrode with a gap therebetween; the first electrode is separated for each of the elements by grooves, an insulating connection substrate is bonded to the first electrode, and wirings are provided from the respective first electrodes through the connection substrate to the side opposite to the first electrodes.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: June 18, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Ezaki, Chienliu Chang, Yasuhiro Soeda, Kenji Tamamori
  • Patent number: 8344587
    Abstract: A capacitive electro-mechanical transducer includes a plurality of cavities, a communicating portion for connecting the cavities to each other, and two electrodes sandwiching each of the cavities. The cavities are sealed from outside, and at least a portion of the communicating portion is closed to interrupt the communication between the cavities through the communicating portion.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: January 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Soeda
  • Publication number: 20110084570
    Abstract: A process for producing a capacitive electromechanical conversion device by bonding together a substrate and a membrane member to form a cavity sealed between the substrate and the membrane member, the process for producing a capacitive electromechanical conversion device comprises the steps of: providing a gas release path penetrating from a bonded interface between the substrate and the membrane member to the outside, and forming the cavity by bonding the membrane member with the substrate with the gas release path provided; the gas release path being provided at a location where the path does not communicate with the cavity.
    Type: Application
    Filed: June 4, 2009
    Publication date: April 14, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiro Soeda, Takahiro Ezaki
  • Publication number: 20110073968
    Abstract: An element array comprises a plurality of elements having a first electrode and a second electrode with a gap therebetween; the first electrode being separated for each of the elements by grooves, an insulating connection substrate being bonded to the first electrode, and a wiring being made from each of the respective first electrodes separated for each of the elements through the connection substrate to the side opposite to the first electrodes.
    Type: Application
    Filed: June 29, 2009
    Publication date: March 31, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Ezaki, Chienliu Chang, Yasuhiro Soeda, Kenji Tamamori
  • Publication number: 20100283354
    Abstract: A capacitive electro-mechanical transducer includes a plurality of cavities, a communicating portion for connecting the cavities to each other, and two electrodes sandwiching each of the cavities. The cavities are sealed from outside, and at least a portion of the communicating portion is closed to interrupt the communication between the cavities through the communicating portion.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuhiro Soeda
  • Patent number: 7777927
    Abstract: An oscillator device includes a first oscillator, a second oscillator configured to support the first oscillator for torsional rotation about a first rotational axis, through a first torsion spring, a supporting member configured to support the second oscillator for torsional rotation about a second rotational axis, through a second torsion spring, the second rotational axis having a predetermined angle with respect to the first rotational axis of the first oscillator, a coil disposed in relation to the second oscillator, an electrical current applying member configured to apply an electrical current to the coil, and a magnetic field generating member configured to apply a magnetic field to the coil. The coil is localized in at least one of zones of the second oscillator being quartered by extension lines of the first and second rotational axes.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: August 17, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Mizoguchi, Yasuhiro Soeda, Shinichiro Watanabe, Yasuhiro Shimada
  • Publication number: 20080231930
    Abstract: An oscillator device includes a first oscillator, a second oscillator configured to support the first oscillator for torsional rotation about a first rotational axis, through a first torsion spring, a supporting member configured to support the second oscillator for torsional rotation about a second rotational axis, through a second torsion spring, the second rotational axis having a predetermined angle with respect to the first rotational axis of the first oscillator, a coil disposed in relation to the second oscillator, an electric current applying member configured to apply an electric current to the coil, and a magnetic field generating member configured to apply a magnetic field to the coil, wherein the coil is localized in at least one of zones of the second oscillator being quartered by extension lines of the first and second rotational axes.
    Type: Application
    Filed: February 15, 2008
    Publication date: September 25, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasushi Mizoguchi, Yasuhiro Soeda, Shinichiro Watanabe, Yasuhiro Shimada
  • Publication number: 20060255243
    Abstract: An image displaying apparatus displaying a color image with favorable quality on a predetermined surface comprises; light source unit for emitting light beams within different wavelength ranges optically modulated by image information; light combining unit for combining light beams from the light source unit into a light beam; scanning unit for scanning a scanned surface with the light beam from the light combining unit and forming image thereon; and controlling unit for synchronously controlling the scanning unit and the light source unit, wherein dividing unit for dividing a light beam into light beams is provided within an arbitrary optical path on light-incident side of the scanning unit; receiving unit and adjustment unit for adjusting quantity of light emission of one or more light source unit based on the light quantity received by the receiving unit are provided on one of the optical paths divided by the dividing unit.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 16, 2006
    Inventors: Shuichi Kobayashi, Keiichiro Ishihara, Yasuhiro Soeda
  • Publication number: 20060066282
    Abstract: A motor apparatus has a motor which is rotatable by electromagnetic force, a load mounted to an output shaft of the motor, and an angular detecting unit for detecting a rotational angle of the output shaft of the motor or the load. In the motor apparatus, the angular detecting unit has a magnetic sensor and a magnet, and one of the magnetic sensor and the magnet is fixed to the output shaft of the motor or to the rotational axis portion of the load on a side opposite to a side of the motor with the load interposed therebetween.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 30, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuhiro Soeda