Patents by Inventor Makoto Takagi

Makoto Takagi 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: 8339014
    Abstract: An oscillator device that includes a movable body oscillatably supported about a rotation axis, wherein the movable body is separated into plural electrically separated conductive regions in the thickness direction, and at least one of the plural electrically separated conductive regions in the thickness direction further has plural electrically separated conductive regions.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: December 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Kandori, Chienliu Chang, Makoto Takagi
  • Publication number: 20120194107
    Abstract: Provided is a control apparatus and control method for a capacitive electromechanical transducer with small decrease in transmission/reception efficiency, and with sets of transmission/reception characteristics with different frequency ranges. The apparatus has cells each including first and second electrodes facing each other via a gap; includes a driving/detecting unit and an external stress applying unit. The driving/detecting unit performs at least one of causing the second electrode to vibrate and transmit elastic waves by generating an AC electrostatic attractive force between the electrodes, and detecting a change of capacity between the electrodes, the change being caused by the second electrode vibrating upon receipt of elastic waves. The external stress applying unit changes the external stress applied to the second electrode.
    Type: Application
    Filed: November 16, 2011
    Publication date: August 2, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Kandori, Makoto Takagi, Masao Majima, Kenichi Nagae
  • Publication number: 20120163124
    Abstract: Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.
    Type: Application
    Filed: October 28, 2010
    Publication date: June 28, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Akiyama, Makoto Takagi, Kazunari Fujii, Hidemasa Mizutani
  • Publication number: 20120148819
    Abstract: This disclosure provides a resin composition suitable for use in a flat panel display fixing frame having a snap fit structure, which comprises a filler and has stiffness and flame retardancy, and a flat panel display fixing frame. The resin composition comprises (i) an aromatic polycarbonate resin (component A), (ii) at least one lamellar silicate mineral (component B) selected from the group consisting of talc having an average particle diameter of 0.5 to 9 ?m (component B-1) and muscovite mica having an average particle diameter of 0.5 to 50 ?m (component B-2), (iii) a fluorine-containing dripping preventing agent (component C), and (iv) an organic sulfonic acid alkali (earth) metal salt (component D) in a specific ratio.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Inventors: Hidenori NAKAGAWA, Seiji Kikuchi, Makoto Takagi
  • Patent number: 8176780
    Abstract: An angular velocity sensor includes a supporting substrate, a detecting portion, a displacement detecting portion, a first driving portion, and a second driving portion. The detecting portion is supported by the supporting substrate movably in at least a free direction. The displacement detecting portion detects a displacement of the detecting portion in the free direction. The first driving portion excites a first reference oscillation of at least a portion of the detecting portion so that a first Coriolis' force in the free direction is generated in response to an angular velocity about a first axis. The second driving portion excites a second reference oscillation of at least a portion of the detecting portion so that a second Coriolis' force in the free direction is generated in response to an angular velocity about a second axis.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: May 15, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Takagi, Atsushi Kandori
  • Publication number: 20120086307
    Abstract: The present invention relates to an electromechanical transducer capable of arbitrarily varying the amount of deflection of a vibrating membrane for every element. The electromechanical transducer includes a plurality of elements including at least one cell that includes a first electrode and a second electrode opposed to the first electrode with a gap sandwiched therebetween and a direct-current voltage applying unit configured to be provided for each element and to separately apply a direct-current voltage to the first electrodes in each element. The first electrodes and the second electrodes are electrically separated for every element.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 12, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Kandori, Makoto Takagi, Masao Majima
  • Publication number: 20120087205
    Abstract: An electromechanical transducer includes a plurality of elements each including a first electrode and a second electrode with a gap therebetween, a voltage applying unit configured to apply an AC voltage to the first electrode, and a sensitivity variation computing unit configured to compute a sensitivity variation for each of the elements using a signal output from the second electrode of the element due to the application of the AC voltage.
    Type: Application
    Filed: June 18, 2010
    Publication date: April 12, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Makoto Takagi, Masao Majima
  • Publication number: 20120038343
    Abstract: A constant current source has a first current source circuit for outputting a first current; a second current source circuit for outputting a second current according to a reference voltage; a current comparison circuit for comparing magnitudes of the first and second currents; and a current adjustment unit for adjusting a current value of the first current output from the first current source circuit in accordance with a comparison result of the current comparison circuit.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 16, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Makoto Takagi, Kazuo Yamazaki
  • Patent number: 8110622
    Abstract: A resin composition consisting of: (1) 100 parts by weight of an aromatic polycarbonate resin; (2) 0.008 to 0.13 part by weight of an alkali metal salt of a perfluoroalkylsulfonic acid having a fluoride ion content measured by ion chromatography of 0.2 to 1 ppm in terms of weight based on the weight of component B; and (3) 0.01 to 5 parts by weight of silicone having a Si—H group and a phenyl group. A process of manufacturing the resin composition and a method of preventing the melt dripping during combustion of the resin composition. The flame retardancy of the above aromatic polycarbonate resin composition comprising the fluorine-containing organic metal salt compound is improved.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 7, 2012
    Assignee: Teijin Chemicals Ltd.
    Inventors: Yoji Ohira, Tetsushi Ono, Hidekazu Ito, Makoto Takagi, Takuya Tomoda, Hidenori Nakagawa, Mitsuhiro Takeo, Kazuhiko Koya
  • Patent number: 8059184
    Abstract: Disclosed is an image display apparatus, including: a first image pickup unit; a second image pickup unit; a display unit for displaying a first image picked up by the first image pickup unit and a second image picked up by the second image pickup unit; a detecting portion for detecting conditions of the first and second image pickup units; and a display control portion for causing the display unit to display one of the first image and the second image based on a result obtained by the detecting portion.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiko Takayama, Makoto Takagi
  • Publication number: 20110195222
    Abstract: The object of the present invention are to provide a resin composition suitable for use in a flat panel display fixing frame having a snap fit structure, which comprises a filler and has stiffness and flame retardancy and a flat panel display fixing frame. There are provided the resin composition comprising (i) an aromatic polycarbonate resin (component A), (ii) at least one lamellar silicate mineral (component B) selected from the group consisting of talc having an average particle diameter of 0.5 to 9 ?m (component B-1) and muscovite mica having an average particle diameter of 0.5 to 50 ?m (component B-2), (iii) a fluorine-containing dripping preventing agent (component C), and (iv) an organic sulfonic acid alkali (earth) metal salt (component D) in a specific ratio, and is used in a flat panel display fixing frame having at least one snap-fit projection, hole or groove, and a flat panel display fixing frame comprising the composition in the present invention.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Inventors: Hidenori Nakagawa, Seiji Kikuchi, Makoto Takagi
  • Publication number: 20110169510
    Abstract: A capacitive detection type electro-mechanical transducer comprises; a cell formed by a first electrode arranged on a substrate and a second electrode arranged on a vibration film, and a detection circuit for detecting a displacement of the vibration film, based on a capacity change between the first and second electrodes, wherein a plurality of the cells are classified into a plurality of groups, each one includes at least two cells, and the first electrodes or the second electrodes of the cells of the same one group are commonly connected to the same one detection circuit, and an addition circuit for adding, into single information, signals from the plurality of detection circuits corresponding to the plurality of groups, and for outputting the information, and a capacitive load for each one of the detectors are formulated to be dispersedly arranged.
    Type: Application
    Filed: December 20, 2010
    Publication date: July 14, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Kandori, Makoto Takagi, Masao Majima
  • Patent number: 7974804
    Abstract: A registration detection system realizes both substrate-by-substrate correction and highly accurate correction of an exposure process.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: July 5, 2011
    Assignee: Nikon Corporation
    Inventor: Makoto Takagi
  • Publication number: 20110031568
    Abstract: A structure having a plurality of conductive regions insulated electrically from each other comprises a movable piece supported movably above the upper face of the conductive region, the movable piece having an electrode in opposition to the conductive region, the structure being constructed to be capable of emitting and receiving electric signals through the lower face of the conductive region, the plural conductive regions being insulated by sequentially connected oxidized regions formed from an oxide of a material having through-holes or grooves.
    Type: Application
    Filed: May 29, 2009
    Publication date: February 10, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Kandori, Chienliu Chang, Makoto Takagi
  • Publication number: 20110018387
    Abstract: Provided is an electromechanical transducer device including a substrate that is conductive, and a plurality of electromechanical transducer elements disposed on a first surface of the substrate. A groove that electrically isolates the plurality of electromechanical transducer elements from each other is formed in the substrate, the groove extending from a second surface side of the substrate toward the first surface side of the substrate, the second surface being opposite the first surface. The width of the groove on the first surface side of the substrate is smaller than the width of the groove on the second surface side of the substrate.
    Type: Application
    Filed: July 20, 2010
    Publication date: January 27, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiyuki Ogawa, Makoto Takagi, Kazuhiko Kato
  • Patent number: 7873206
    Abstract: A registration detection system performing registration-detecting each substrate in a lot without lowering an original throughput of a lithography system and maintaining high accuracy usable for the correction of an exposure process.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: January 18, 2011
    Assignee: Nikon Corporation
    Inventor: Makoto Takagi
  • Publication number: 20100213791
    Abstract: An oscillator device that includes a movable body oscillatably supported about a rotation axis, wherein the movable body is separated into plural electrically separated conductive regions in the thickness direction, and at least one of the plural electrically separated conductive regions in the thickness direction further has plural electrically separated conductive regions.
    Type: Application
    Filed: June 30, 2008
    Publication date: August 26, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Kandori, Chienliu Chang, Makoto Takagi
  • Patent number: D681691
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: May 7, 2013
    Assignee: Iseki & Co., Ltd.
    Inventors: Makoto Takagi, Shohei Kurokawa, Takeshi Hagiyama
  • Patent number: D682892
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 21, 2013
    Assignee: Iseki & Co., Ltd.
    Inventors: Makoto Takagi, Shohei Kurokawa, Takashi Wakino
  • Patent number: D683369
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 28, 2013
    Assignee: Iseki & Co., Ltd.
    Inventors: Makoto Takagi, Shohei Kurokawa, Takashi Wakino