Patents by Inventor Shinji Takeuchi

Shinji Takeuchi 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: 7944466
    Abstract: An endoscope apparatus comprises: an endoscope comprising an imaging device that forms a color image signal of a body to be observed; a storage portion that stores matrix data for forming a spectral image based on the color image signal; a spectral image-forming circuit that conducts matrix calculation based on the color image signal by using the matrix data of the storage portion and forms at least one spectral image signal each of which corresponds to an arbitrarily selected wavelength range; and an amplifier circuit that amplifies said at least one spectral image signal formed by the spectral image-forming circuit.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 17, 2011
    Assignee: Fujinon Corporation
    Inventors: Kazunori Abe, Shinji Takeuchi, Daisuke Ayame
  • Patent number: 7850599
    Abstract: An endoscope apparatus comprises: an endoscope comprising an imaging device that forms a color image signal of a body to be observed; a storage portion that stores matrix data regarding a wavelength range in which a spectral image is constituted; a spectral image forming circuit that conducts matrix calculation based on the color image signals by using the matrix data of the storage portion and forms a spectral image of a selected wavelength range; and a wavelength selecting section that selects the wavelength range of the spectral image formed by the spectral image forming circuit through a continuous changeover or a step-wise changeover.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: December 14, 2010
    Assignee: Fujinon Corporation
    Inventors: Shinji Takeuchi, Kazunori Abe, Daisuke Ayame, Mitsuru Higuchi
  • Patent number: 7800656
    Abstract: An endoscope apparatus comprises: an endoscope comprising an imaging device that forms color image signals of a body to be observed; a Y/C signal processing circuit that forms brightness/color difference signals from a color image signal obtained by the imaging device; a storage portion that stores Y/C matrix data for forming a spectral image based on the brightness/color difference signals; and a Y/C spectral image forming circuit that conducts matrix calculation by the Y/C matrix data of the storage portion and the brightness/color difference signals output from the Y/C signal processing circuit and forms a spectral image of an arbitrarily selected wavelength range.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 21, 2010
    Assignee: Fujinon Corporation
    Inventors: Shinji Takeuchi, Kazunori Abe, Daisuke Ayame
  • Publication number: 20100177181
    Abstract: A method capable of obtaining a fluorescence image and a background image with a simple configuration. A color image is obtained, when excitation light is emitted on a subject, by imaging excitation light reflected from the subject and fluorescence emitted from the subject. Thereafter, an estimated spectral image that includes a background image representing the excitation light and a fluorescence image representing the fluorescence is generated by allocating a wavelength component of the excitation light and a wavelength component of the fluorescence included in the obtained color image to different primary color components.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke Ayame, Shuichi Ishii, Shinji Takeuchi, Hiroshi Fujita
  • Patent number: 7739001
    Abstract: A vehicle steering apparatus for improving steering feel when changing the angle of a steered wheel with a motor. An IFS torque compensation unit includes an oversteer IFS torque compensation gain calculation unit, which obtains a larger IFS torque compensation gain as a control target element increases during oversteer control. When an oversteer state occurs, the IFS torque compensation control unit outputs a corrected gain, which is based on the IFS torque compensation gain.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: June 15, 2010
    Assignee: JTEKT Corporation
    Inventors: Hiroaki Kato, Shinji Takeuchi
  • Patent number: 7729751
    Abstract: A spectral image obtainment unit obtains spectral image data by receiving reflection light in different wavelength bands, into which light reflected by a living body mucous membrane has been separated, at a light receiving unit by causing a ratio of a light receiving level in a short wavelength band with respect to a light receiving level in a long wavelength band to be greater than a ratio of spectral reflectance in the short wavelength band at the living body mucous membrane with respect to spectral reflectance in the long wavelength band thereat. A spectral image data operation unit performs a spectral image estimation operation by correcting the value of the spectral image data to that of spectral image data obtained by receiving light without causing the ratio to increase. Accordingly, a diagnostic spectral image of the living body mucous membrane is obtained in an electronic endoscopic apparatus.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Fujinon Corporation
    Inventors: Daisuke Ayame, Shinji Takeuchi
  • Patent number: 7637331
    Abstract: A vehicle including a steer-by-wire type steering device controlling yaw moment of the vehicle in correspondence with an operation of a steering wheel mechanically separated from each of wheels. The wheels are configured such that a steered angle cannot be changed. The steering device has a power distribution device capable of changing a distribution rate of power applied to each of the wheels, and a braking force control device capable of separately controlling a braking force for each of the wheels. The steering device controls a yaw moment of the vehicle by separately controlling the power applied to each of the wheels and the braking force in each of the wheels.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: December 29, 2009
    Assignee: JTEKT Corporation
    Inventors: Shinji Takeuchi, Jiro Nakano
  • Patent number: 7441627
    Abstract: The control system of a vehicle controls the transmission ratio of the steering angle of a steering wheel relative to a turning angle of front wheels based on a drive force distribution ratio. Thus, the performance of the tires on the front wheels can be used to almost maximum potential, providing effective prevention of understeering.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: October 28, 2008
    Assignee: Jtekt Corporation
    Inventors: Takayuki Ohta, Shinji Takeuchi, Minekazu Momiyama, Hiroaki Kato, Tsuyoshi Murakami
  • Patent number: 7433767
    Abstract: A first system and a second system include a first motor and a second motor for driving a steering mechanism in dependence on the rotational manipulation of a steering wheel. A first ECU and a second ECU mutually monitor abnormalities of the systems each to stop an abnormal system. When the respective systems are normal, the first ECU and the second ECU drivingly control the first motor and the second motor of their own systems to drive the steering mechanism by cooperation of the respective motors. When either one of the both systems is abnormal, the ECU of the other system solely drivingly controls the motor of its own system thereby to drive the steering mechanism. Thus, it can be realized to make the systems low in cost irrespective of the provision of the plural systems.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: October 7, 2008
    Assignee: JTEKT Corporation
    Inventors: Shinji Takeuchi, Jiro Nakano, Kenichi Fukumura, Yutaka Mori
  • Publication number: 20080242506
    Abstract: A vehicle control system including a range selector having a shift lever operated by a driver of a vehicle, a shift control device for controlling the switching of a shift range of an automatic transmission of the vehicle in accordance with the range selecting operation of the shift lever, and an engine control device for controlling the switching of ON/OFF of an internal combustion engine of the vehicle in accordance with an engine switch operation of the shift lever.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 2, 2008
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Masashi Hori, Shinji Takeuchi
  • Patent number: 7420721
    Abstract: An improved oscillation scan mirror assembly comprises a shaft, a holder having a bearing with a bearing surface supporting the holder on the shaft, a scan mirror secured to the holder. The holder and therefore the mirror are oscillatable around the shaft under an oscillating driving force, and bearing and the shaft is prevented from being tilt from each other. Preferably, a lateral retaining force is provided to constantly keep the bearing and the shaft in an aligned contact with each other. Since the relative tilting between bearing and the shaft is prevented, the vertical wobble or vibration of bearing, and therefore of the holder and the mirror, relative to the shaft is therefore suppressed.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: September 2, 2008
    Assignee: Optoelectronics Co., Ltd.
    Inventor: Shinji Takeuchi
  • Publication number: 20080196138
    Abstract: A main body cloth including a crotch part that covers at least a part extending from ventral to hip, a first band-like elastic member is attached to a part extending from the upper end of the main body cloth onto hip to the upper ends at the main body cloth at positions respectively locating onto ilium crests in both sides. Then, second band-like elastic members are attached to a part extending from the upper ends of the main body cloth locating at positions onto ilium crests in both sides to positions in the vicinity of the both sides of public through inside the respective positions onto upper foregut bone spurs in both sides such that the distal ends of the elastic members are attached at a preset distance to each other.
    Type: Application
    Filed: July 6, 2005
    Publication date: August 21, 2008
    Inventor: Shinji Takeuchi
  • Publication number: 20070289804
    Abstract: A vehicle including a steer-by-wire type steering device controlling yaw moment of the vehicle in correspondence with an operation of a steering wheel mechanically separated from each of wheels. The wheels are configured such that a steered angle cannot be changed. The steering device has a power distribution device capable of changing a distribution rate of power applied to each of the wheels, and a braking force control device capable of separately controlling a braking force for each of the wheels. The steering device controls a yaw moment of the vehicle by separately controlling the power applied to each of the wheels and the braking force in each of the wheels.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 20, 2007
    Applicant: JTEKT Corporation
    Inventors: Shinji Takeuchi, Jiro Nakano
  • Patent number: 7257474
    Abstract: In a steering system 30, a transmission ratio R1 which is determined in dependence on the vehicle speed by reference to a transmission ratio decision map is multiplied with a first transmission ratio alteration gain g10 which is determined in dependence on the distribution of a traveling drive torque from an engine 11 to front wheels 14 and rear wheels 15, thereby to alter the ratio R1 of steering torque distribution from a steering handle 31 to the front wheels 14, whereby the variation of the steering feeling due to an increase or decrease in the distribution of the traveling drive torque to the front wheels 14 can be suppressed. Further, the transmission ratio R1 is multiplied with a second transmission ratio alteration gain g11 which is determined in dependence on the gradient of the road surface by reference to a second transmission ratio alteration map, thereby to alter the transmission ratio R1, whereby the variation of the steering feeling due to the variation of the gradient can also be suppressed.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 14, 2007
    Assignee: JTEKT Corporation
    Inventors: Hiroaki Kato, Shinji Takeuchi, Minekazu Momiyama, Akihiro Ohno, Tsuyoshi Murakami
  • Publication number: 20070185378
    Abstract: An endoscopic system that processes a color image data of a subject from an imager mounted on an endoscope and records the processed image data in an image recorder/display unit, the endoscopic system comprising: a storage that stores matrix data for forming a spectral image; and a spectral-image forming circuit that is capable of forming (i) a spectral image in an arbitrarily-selected wavelength band according to a matrix operation of the matrix data in the storage and the color image data and (ii) a standard image according to a matrix operation of standard-image matrix data and the color image data, the standard-image matrix data being for forming a standard image.
    Type: Application
    Filed: January 25, 2007
    Publication date: August 9, 2007
    Applicant: FUJINON CORPORATION
    Inventors: Mitsuru Higuchi, Shinji Takeuchi, Kazunori Abe, Daisuke Ayame
  • Publication number: 20070088192
    Abstract: An endoscope having a color space conversion circuit performs a matrix calculation according to RGB signals and matrix data respectively corresponding to signals in wavelength ranges is provided with a wavelength memory section having a default data memory area, which stores a default value representing a wavelength range selected by a wavelength selection section, and a changed-wavelength saving area that stores a wavelength range selected by the wavelength selection section after changed from the wavelength range represented by the default value. Subsequently, at least a part of the wavelength range stored in the changed-wavelength saving area is rewritten by a reset section into the default value stored in the default data memory area.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 19, 2007
    Inventors: Shinji Takeuchi, Mitsuru Higuchi, Kazunori Abe
  • Publication number: 20070078299
    Abstract: A spectral image obtainment unit obtains spectral image data by receiving reflection light in different wavelength bands, into which light reflected by a living body mucous membrane has been separated, at a light receiving unit by causing a ratio of a light receiving level in a short wavelength band with respect to a light receiving level in a long wavelength band to be greater than a ratio of spectral reflectance in the short wavelength band at the living body mucous membrane with respect to spectral reflectance in the long wavelength band thereat. A spectral image data operation unit performs a spectral image estimation operation by correcting the value of the spectral image data to that of spectral image data obtained by receiving light without causing the ratio to be greater. Accordingly, a diagnostic spectral image of the living body mucous membrane is obtained in an electronic endoscopic apparatus.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 5, 2007
    Inventors: Daisuke Ayame, Shinji Takeuchi
  • Patent number: 7194896
    Abstract: It is possible to blast air on a surface portion of a measured object from a hole of pressing means, project illumination light in a concentric pattern with an optical element and shoot the measured object with a CCD so as to visually grasp hardness distribution on the surface portion from distortion of the concentric pattern displayed on an observed image. As for the hardness distribution, it is possible to detect luminance distribution of a measured object image obtained by the CCD so as to display the concentric pattern which is the luminance distribution as a conspicuous representation of the hardness distribution. And the luminance distribution can also be represented in the concentric pattern by multiplying a luminance value by an overflowing coefficient.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: March 27, 2007
    Assignees: Makoto Kaneko and Tomohiro Kawahara, Fujinon Corporation, Shinji Tanaka
    Inventors: Makoto Kaneko, Shinji Tanaka, Tomohiro Kawahara, Shinji Takeuchi
  • Publication number: 20070045036
    Abstract: A turning device that can be combined with a suspension mechanism without requiring significant modification to existing suspension mechanisms, and that provides a compact design when combined with a suspension mechanism. In a turning device according to the present invention, a main device unit, containing a turning motor and a differential speed reducer, and a turning output member that rotates relative to the main device unit are positioned roughly co-axially with a kingpin shaft. This makes it possible to reduce the amount by which the turning device projects in the direction perpendicular to the kingpin shaft. As a result, compared to conventional technologies, the turning device can be combined without significantly modifying the structure of an existing double wishbone suspension mechanism, and the overall structure that combines the double wishbone suspension mechanism and the turning device can be made compact.
    Type: Application
    Filed: August 11, 2006
    Publication date: March 1, 2007
    Applicant: JTEKT Corporation
    Inventors: Shinji Takeuchi, Tomonari Yamakawa
  • Publication number: 20070047047
    Abstract: An improved oscillation scan mirror assembly comprises a shaft, a holder having a bearing with a bearing surface supporting the holder on the shaft, a scan mirror secured to the holder. The holder and therefore the mirror are oscillatable around the shaft under an oscillating driving force, and bearing and the shaft is prevented from being tilt from each other. Preferably, a lateral retaining force is provided to constantly keep the bearing and the shaft in an aligned contact with each other. Since the relative tilting between bearing and the shaft is prevented, the vertical wobble or vibration of bearing, and therefore of the holder and the mirror, relative to the shaft is therefore suppressed.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventor: Shinji Takeuchi