Patents by Inventor Yuichiro Yamaguchi

Yuichiro Yamaguchi 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: 8573700
    Abstract: To perform highly precise position adjustment for head restraint in short time regardless of distance between head restraint and human body and head shape. Head restraint position adjusting device 100 includes capacitance sensor unit 10 and drive motor unit 30. Capacitance sensor unit 10 includes first and third sensing electrodes 11 and 13 and detection circuit 20. First sensing electrode 11 is arranged in an upper portion of front portion of head restraint 43 and senses capacitance between itself and vicinity of parietal region 49a of head 49 of human body 48. Third sensing electrode 13 is arranged in lower portion of front portion and senses capacitance between itself and any portion of human body 48 other than vicinity of parietal region 49a.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 5, 2013
    Assignee: Fujikura Ltd.
    Inventors: Takeshi Togura, Yuichiro Yamaguchi
  • Publication number: 20130289897
    Abstract: An electromagnetic flowmeter using a square wave excitation method includes a differential amplifier which outputs a detection signal; an analog-digital converter which converts the detection signal into a digital detection signal; a timing control circuit which generates a sampling signal for sampling the digital detection signal; an calculation unit which executes a flow rate calculation process and a abnormality judging process at a same time. The flow rate calculation process acquires a flow velocity output signal by sampling the digital detection signal in a flat portion in a positive/negative excitation section.
    Type: Application
    Filed: December 21, 2012
    Publication date: October 31, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuichiro YAMAGUCHI, Takashi HIGUCHI, Takaki NAKAMURA
  • Publication number: 20130270885
    Abstract: A head rest position adjusting device 100 has a capacitance sensor unit 10 and a drive motor unit 30, and the capacitance sensor unit 10 has plural detection electrodes 11 to 15. Each detection electrode 11 to 15 are formed in a rectangular strip having a long side arranged in a width direction intersecting with a height direction of a head restraint 43 at the front face side thereof, and are arranged in such a way that the long sides are aligned along the height direction. A detection circuit 20 has plural capacitance detection circuits 21 to 25 connected to the detection electrodes 11 to 15, respectively, and an arithmetic processing circuit 28, and the drive motor unit 30 has a motor drive circuit and a drive motor.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventor: Yuichiro Yamaguchi
  • Publication number: 20130249749
    Abstract: An antenna integrated harness in accordance with an embodiment of the present invention includes: a wire harness formed by bundling a plurality of electric cables; an antenna element which is two-dimensional planar and is provided on, while conforming to, a surface of the wire harness; and a feed line connected with the antenna element and bundled with the plurality of electric cables.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: FUJIKURA LTD.
    Inventors: Hiroki Nitta, Ning Guan, Takeshi Togura, Yuichiro Yamaguchi, Yuki Noguchi
  • Publication number: 20130249748
    Abstract: An antenna device includes: a plate-like antenna having an electrically conductive path arranged in a two-dimensional manner, the electrically conductive path having a meander shape which is made up of at least one return pattern; and a base member, while causing the antenna to be spaced away from an outer surface of a body containing an electrically conductive material layer of a movable body, holding the antenna in such a manner as to conform to the outer surface, the base member being made from a dielectric material.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: FUJIKURA LTD.
    Inventors: Takeshi Togura, Ning Guan, Hiroki Nitta, Yuichiro Yamaguchi, Yuki Noguchi
  • Publication number: 20120261969
    Abstract: A headrest position adjustment device includes a capacitance sensor unit, and a drive motor unit. The capacitance sensor unit includes a plurality of electrode groups each configured by a plurality of sensing electrodes. The total electrode area of each of the electrode groups is switchable by a switching unit of a circuit unit between at least a total electrode area A and a total electrode area A+B. The total electrode area A is selected when the distance d between a head and a headrest is short, and the total electrode area A+B is selected when the distance is long. In this way, the sensitivity is changed depending on how long or how short the distance is. An estimated center position of the head is calculated based on capacitance values obtained, and thereby the position of the headrest is adjusted.
    Type: Application
    Filed: October 18, 2010
    Publication date: October 18, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Takuya Osaki, Yuichiro Yamaguchi, Yuki Noguchi, Koji Sakiyama
  • Publication number: 20120041648
    Abstract: To automatically adjust a position of a headrest accurately by preventing an unnecessary movement of the headrest, a headrest position adjusting device includes a sensing electrode 1 and a detecting circuit 2 embedded in a headrest 13 provided on a seat 10, an arithmetic circuit 5, a headrest driving motor 3, and a motor control circuit 4. The arithmetic circuit 5 calculates the distance between the head 22 of an occupant 21 and the headrest 13 and an amount of change of a capacitance based on a capacitance value from the detecting circuit 2. The motor control circuit 4 controls the headrest driving motor 3 in accordance with the calculation results to adjust the position of the headrest 13.
    Type: Application
    Filed: March 10, 2010
    Publication date: February 16, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Yuichiro Yamaguchi, Yuki Noguchi, Takuya Osaki, Ryohei Sakurai
  • Publication number: 20120032488
    Abstract: To automatically adjust the position of a headrest accurately with a simple configuration while preventing an unnecessary movement of the headrest, a headrest position adjusting device 100 includes a capacitance sensor unit 10 and a drive motor unit 30. The capacitance sensor unit 10 includes, for example, a plurality of sensing electrodes 11 to 15 and a detecting circuit 20. The detecting circuit 20 includes a plurality of capacitance sensing circuits 21 to 25 connected one-to-one to the sensing electrodes 11 to 15, and an arithmetic processing circuit 28. The drive motor unit 30 includes a motor driving circuit and a drive motor.
    Type: Application
    Filed: April 9, 2010
    Publication date: February 9, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Yuki Noguchi, Yuichiro Yamaguchi, Takuya Osaki
  • Publication number: 20120032691
    Abstract: A headrest position adjusting device 100 includes a distance measuring device 10 and a drive motor unit 30. The distance measuring device 10 includes a plurality of sensing electrodes 11 to 15 and a detecting circuit 20. The detecting circuit 20 includes a plurality of capacitance sensing circuits 21 to 25 connected one-to-one to the sensing electrodes 11 to 15, and an arithmetic processing circuit 28. The drive motor unit 30 includes a motor driving circuit and a drive motor. Based on the detected capacitance values, the detecting circuit 20 calculates a difference value between a capacitance value of the sensing electrode which shows the largest capacitance value and the capacitance value of the sensing electrode which shows the lowest capacitance value, and thereby measures an electrode-head distance L. A position adjusting operation for a headrest 43 is performed based on the measurement result.
    Type: Application
    Filed: March 24, 2010
    Publication date: February 9, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Yuichiro Yamaguchi, Takuya Osaki, Yuki Noguchi
  • Publication number: 20120025850
    Abstract: A headrest position adjusting device 100 includes a distance measuring device 10 and a drive motor unit 30, and the distance measuring device 10 includes a plurality of sensing electrodes 11 to 15 and a detecting circuit 20. The detecting circuit 20 includes a plurality of capacitance sensing circuits 21 to 25 connected one-to-one to the sensing electrodes 11 to 15 and an arithmetic processing circuit 28, and the drive motor unit 30 includes a motor driving circuit and a drive motor. Based on the detected capacitance values, the detecting circuit 20 calculates a distance calculation angle ? formed by points representing the positions and output values of the sensing electrodes 15 and 11 located at the highest and lowest positions and a point representing the position and output value of the largest output value, and thereby measures an electrode-head distance L. A position adjusting operation for a headrest 43 is performed based on the measurement result.
    Type: Application
    Filed: March 24, 2010
    Publication date: February 2, 2012
    Applicant: FUJIKURA LTD.
    Inventors: Yuichiro Yamaguchi, Takuya Osaki, Yuki Noguchi
  • Publication number: 20110264332
    Abstract: To highly precisely adjust a position of a headrest automatically and to an appropriate condition with simple configuration, when the distance between the headrest and .a head is within a certain range, a detecting circuit of a headrest position adjustment device calculates an estimated height-direction center position of the head based on sensing signals from a plurality of sensing electrodes. Based on the calculated value, the detecting circuit detects the height position of the head. When the distance between the headrest and the head is not within the certain range, the detecting circuit detects the height position of the head based on sensing signals from at least the sensing electrode located at a lowermost position and the sensing electrode located at an uppermost position among the plurality of sensing electrodes.
    Type: Application
    Filed: April 29, 2011
    Publication date: October 27, 2011
    Applicant: FUJIKURA LTD.
    Inventors: Yuichiro Yamaguchi, Ryohei Sakurai, Koichi Ichihara
  • Publication number: 20110254572
    Abstract: To measure the distance between a sensing target and sensors accurately by suppressing differences in amount of change in outputs from sensors and differences in initial capacitances thereof and detect the sensing target highly accurately, capacitance-type sensor includes: sensor electrodes configuring a sensor electrode group; and a pair of guard electrodes. The sensor electrodes are driven being supplied with a sensor potential or a guard potential, and the guard electrodes are driven being supplied with the guard potential. Even when the outermost sensor electrode of the sensor electrode group is activated, the amount of change in the outputs from the sensor electrodes configuring the sensor electrode group and their capacitance values can be made substantially uniform because the guard electrodes are driven at the guard potential.
    Type: Application
    Filed: April 29, 2011
    Publication date: October 20, 2011
    Applicant: FUJIKURA LTD.
    Inventors: Yuichiro Yamaguchi, Koichi Ichihara, Ryohei Sakurai
  • Publication number: 20100225153
    Abstract: To perform highly precise position adjustment for head restraint in short time regardless of distance between head restraint and human body and head shape. Head restraint position adjusting device 100 includes capacitance sensor unit 10 and drive motor unit 30. Capacitance sensor unit 10 includes first and third sensing electrodes 11 and 13 and detection circuit 20. First sensing electrode 11 is arranged in an upper portion of front portion of head restraint 43 and senses capacitance between itself and vicinity of parietal region 49a of head 49 of human body 48. Third sensing electrode 13 is arranged in lower portion of front portion and senses capacitance between itself and any portion of human body 48 other than vicinity of parietal region 49a.
    Type: Application
    Filed: August 27, 2008
    Publication date: September 9, 2010
    Applicant: FUJIKURA LTD.
    Inventors: Takeshi Togura, Yuichiro Yamaguchi
  • Publication number: 20100222969
    Abstract: Head restraint position adjusting device 100 includes: capacitance sensor unit 10 including plural sensing electrodes 11 to 15 and detection circuit 20; and drive motor unit 30 including motor drive circuit and drive motor. Sensing electrodes 11 to 15 are formed in a rectangular strip having its longer side exist in width direction of front face of head restraint 43 intersecting with height direction, and arranged such that their longer sides are lined up in height direction. Detection circuit 20 includes plural capacitance sensing circuits 21 to 25 connected in one-to-one to sensing electrodes 11 to 15 and arithmetic processing circuit 28. Even in initial condition of head restraint 43, estimated center position of head 49a of human body 49 in height direction can be obtained even if detection circuit 20 detects neck 49b and shoulder 49c from sensing signals of sensing electrodes 11 to 15, leading to highly precise position adjustment in short time.
    Type: Application
    Filed: August 28, 2008
    Publication date: September 2, 2010
    Applicant: FUJIKURA LTD.
    Inventor: Yuichiro Yamaguchi
  • Publication number: 20100140992
    Abstract: A head rest position adjusting device 100 has a capacitance sensor unit 10 and a drive motor unit 30, and the capacitance sensor unit 10 has plural detection electrodes 11 to 15. Each detection electrode 11 to 15 are formed in a rectangular strip having a long side arranged in a width direction intersecting with a height direction of a head restraint 43 at the front face side thereof, and are arranged in such a way that the long sides are aligned along the height direction. A detection circuit 20 has plural capacitance detection circuits 21 to 25 connected to the detection electrodes 11 to 15, respectively, and an arithmetic processing circuit 28, and the drive motor unit 30 has a motor drive circuit and a drive motor.
    Type: Application
    Filed: April 24, 2008
    Publication date: June 10, 2010
    Applicant: FUJIKURA LTD.
    Inventor: Yuichiro Yamaguchi
  • Patent number: 6424753
    Abstract: A process of a pixel interpolation circuit is optimized for down-sizing of a circuit scale and improvement of process speed. The pixel interpolation method takes a pixel at a center of three row×three column image data as a target pixel subjecting interpolation process, and calculates color data of the target pixel and color data of pixels around the target pixel and adjacent thereto for outputting an interpolated color data for the target pixel.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: July 23, 2002
    Assignee: NEC Corporation
    Inventor: Yuichiro Yamaguchi
  • Patent number: 5768625
    Abstract: A primary object is to provide a communication apparatus, in particular, its buffer memory which conforms mainly to specifications of SAE-J1850 or ISO-9141.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: June 16, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kikuo Muramatsu, Yasushi Okamoto, Akiya Arimoto, Shinji Suda, Etsuya Yokoyama, Takeshi Nita, Yuichiro Yamaguchi, Yoshikazu Satou, Norio Matsumoto