Patents by Inventor Ryosuke Nakamura

Ryosuke Nakamura 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: 20140239360
    Abstract: A semiconductor device, including: a gate electrode formed on a semiconductor substrate through a gate insulating film; an extension region formed in the semiconductor substrate on a source side of the gate electrode; a source region formed in the semiconductor substrate on the source side of the gate electrode through the extension region; an LDD region formed in the semiconductor substrate on a drain side of the gate electrode; and a drain region formed in the semiconductor substrate on the drain side of the gate electrode through the LDD region; wherein the extension region is formed at a higher concentration than that of the LDD region so as to be shallower than the LDD region.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: Sony Corporation
    Inventor: Ryosuke Nakamura
  • Patent number: 8790949
    Abstract: A solid state imaging device includes: a substrate; a photoelectric conversion unit that is formed on the substrate to generate and accumulate signal charges according to light quantity of incident light; a vertical transmission gate electrode that is formed to be embedded in a groove portion formed in a depth direction from one side face of the substrate according to a depth of the photoelectric conversion unit; and an overflow path that is formed on a bottom portion of the transmission gate to overflow the signal charges accumulated in the photoelectric conversion unit.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 29, 2014
    Assignee: Sony Corporation
    Inventor: Ryosuke Nakamura
  • Publication number: 20140148989
    Abstract: An autonomous moving device includes a travel unit with a wheel driven by a motor and an upper body including an environment-recognition sensor that detects an obstacle in a traveling direction. The upper body includes means that recognize device and obstacle positions, means that evaluates avoidance capability, and means that obtains priority of collision avoidance of an estimated passage area of the obstacle. The upper body further includes a control unit that moves the travel unit to an area where an estimated passage area of an obstacle whose priority of collision avoidance is high that does not overlap an area where the travel unit is located and which is an area where collision can be avoided even if an area where an estimated passage area of an obstacle whose priority of collision avoidance is low overlaps the area where the travel unit is located.
    Type: Application
    Filed: July 15, 2011
    Publication date: May 29, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Taishi Ueda, Ryosuke Nakamura, Azusa Amino
  • Publication number: 20140114559
    Abstract: The present invention provides an inverted pendulum-type moving body having a pair of wheels suspended from the moving body, using a floor as a traveling plane, and is provided on the same plane vertical to its travelling direction, a driving mechanism for rotating these wheels, posture measurement means for measuring an inclination angular velocity of its upper body that a straight line connecting a center-of-gravity position of a body of the moving body and an axle of the one pair of wheels makes with a vertical direction, and a mechanism control part for maintaining an inverted state of the moving body by controlling the driving mechanism, by having a velocity planning device for performing a movement plan so that the upper body angular velocity and the upper body angle may be in a relationship of quadratic function when a velocity change is needed.
    Type: Application
    Filed: July 13, 2011
    Publication date: April 24, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Ryosuke Nakamura, Azusa Amino, Taishi Ueda
  • Publication number: 20140106495
    Abstract: A solid state imaging device includes: a substrate; a photoelectric conversion unit that is formed on the substrate to generate and accumulate signal charges according to light quantity of incident light; a vertical transmission gate electrode that is formed to be embedded in a groove portion formed in a depth direction from one side face of the substrate according to a depth of the photoelectric conversion unit; and an overflow path that is formed on a bottom portion of the transmission gate to overflow the signal charges accumulated in the photoelectric conversion unit.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 17, 2014
    Applicant: Sony Corporation
    Inventor: Ryosuke Nakamura
  • Patent number: 8680775
    Abstract: A lighting fixture that suppresses blinking and flickering phenomena even when operating at very low luminance levels includes: a light source including at least one solid state light-emitting element; and a lighting driver circuit controlling the light source in accordance with a control signal. The lighting driver circuit includes an isolating flyback circuit and a control circuit. The isolating flyback circuit switches power from a DC power source and smooths the output. The control circuit controls switching operation performed by a switching element of the isolating flyback circuit via PWM signal. The control circuit provides a frequency component in accordance with the control signal to a reference signal outputted by a reference signal generator. In accordance with results of detection of the reference signal and a current flowing through the light source, the control circuit provides a stop period during which a driver controller driving the switching element is stopped.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 25, 2014
    Assignee: Panasonic Corporation
    Inventors: Kenji Matsuda, Ryosuke Nakamura
  • Publication number: 20140060224
    Abstract: A head structure of a robot according to the invention includes a first motor and a second motor so supported side by side within a head of the robot that output shafts are positioned coaxially with each other; a left elastic frame that is so driven by the first motor and one end of which is so fitted as to be rotatable around the output shaft and the other end of which extending in a perpendicular direction from the output shaft is supported by a trunk of the robot; and a right elastic frame that is so driven by the second motor and one end of which is so fitted as to be rotatable around the output shaft and the other end of which extending side by side with the left elastic frame from the output shaft is supported by the trunk.
    Type: Application
    Filed: May 25, 2011
    Publication date: March 6, 2014
    Applicant: HITACHI, LTD.
    Inventors: Azusa Amino, Ryosuke Nakamura, Taishi Ueda
  • Patent number: 8648362
    Abstract: A solid state imaging device includes: a substrate; a photoelectric conversion unit that is formed on the substrate to generate and accumulate signal charges according to light quantity of incident light; a vertical transmission gate electrode that is formed to be embedded in a groove portion formed in a depth direction from one side face of the substrate according to a depth of the photoelectric conversion unit; and an overflow path that is formed on a bottom portion of the transmission gate to overflow the signal charges accumulated in the photoelectric conversion unit.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 11, 2014
    Assignee: Sony Corporation
    Inventor: Ryosuke Nakamura
  • Publication number: 20130282237
    Abstract: An inverted pendulum type moving body has a pair of wheels suspended by a main body of the moving body and arranged in the same plane perpendicular to a direction in which the moving body moves on a floor surface as a traveling surface; a driving mechanism that rotates the wheels; and a driving controller that controls the driving mechanism and thereby maintains an inverted state of a moving robot body. The inverted pendulum type moving body includes a wheel rotational speed measurer that measures rotational speeds of the wheels; a main body front-back direction angular velocity measurer that measures an inclination angular velocity of the main body of the moving body in a front-back direction; suspension actuators that move the wheels in a vertical direction; and a suspension actuator driving unit that drives the suspension actuators.
    Type: Application
    Filed: January 12, 2011
    Publication date: October 24, 2013
    Applicant: HITACHI, LTD.
    Inventors: Ryosuke Nakamura, Azusa Amino
  • Publication number: 20120293087
    Abstract: A lighting fixture that suppresses blinking and flickering phenomena even when operating at very low luminance levels includes: a light source including at least one solid state light-emitting element; and a lighting driver circuit controlling the light source in accordance with a control signal. The lighting driver circuit includes an isolating flyback circuit and a control circuit. The isolating flyback circuit switches power from a DC power source and smooths the output. The control circuit controls switching operation performed by a switching element of the isolating flyback circuit via PWM signal. The control circuit provides a frequency component in accordance with the control signal to a reference signal outputted by a reference signal generator. In accordance with results of detection of the reference signal and a current flowing through the light source, the control circuit provides a stop period during which a driver controller driving the switching element is stopped.
    Type: Application
    Filed: April 20, 2012
    Publication date: November 22, 2012
    Inventors: Kenji Matsuda, Ryosuke Nakamura
  • Publication number: 20120242875
    Abstract: A solid state imaging device includes: a substrate; a photoelectric conversion unit that is formed on the substrate to generate and accumulate signal charges according to light quantity of incident light; a vertical transmission gate electrode that is formed to be embedded in a groove portion formed in a depth direction from one side face of the substrate according to a depth of the photoelectric conversion unit; and an overflow path that is formed on a bottom portion of the transmission gate to overflow the signal charges accumulated in the photoelectric conversion unit.
    Type: Application
    Filed: February 28, 2012
    Publication date: September 27, 2012
    Applicant: SONY CORPORATION
    Inventor: Ryosuke Nakamura
  • Patent number: 8041458
    Abstract: To provide a robot whose degree of freedom of design is not limited, and which has simple structure and further reduces load of an actuator of a neck part, the present invention provides a robot at least including a head part, a body part, and a neck link which connects the head part and the body part, wherein a surrounding object distance measurement means is provided adjacently to the neck link and in an upper portion of the body part between the head part and the body part, and a distance scanning field of the surrounding object distance measurement means is provided in parallel with a horizontal plane.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: October 18, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Azusa Amino, Junichi Tamamoto, Ryosuke Nakamura
  • Patent number: 7985476
    Abstract: The present invention provides a transparent inorganic oxide dispersion which makes it possible to improve the refractive index and mechanical characteristics and to maintain transparency by modifying the surface of inorganic oxide particles with a surface modifier having one or more reactive functional groups; and an inorganic oxide particle-containing resin composition in which the transparent inorganic oxide dispersion and a resin are compositely integrated by the polymerization reaction, a composition for sealing a light emitting element, a light emitting element, and a method for producing an inorganic oxide particle-containing resin composition; and a hard coat film which has high transparency and makes it possible to improve a refractive index and tenacity, an optical functional film, an optical lens and an optical component.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: July 26, 2011
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Yasuyuki Kurino, Toru Kinoshita, Naoki Takamiya, Yoshitaka Yamamoto, Tsuyoshi Kawase, Yoshizumi Ishikawa, Yoichi Sato, Ryosuke Nakamura, Yuko Katsube
  • Publication number: 20110137462
    Abstract: This mobile unit suppresses lateral vibration produced when the mobile unit passes over a step. A stabilizer according to the present invention predicts contact timing at which the mobile unit makes contact with a step, which may be a bump or pit, using sensor information or map information, shifts the center of gravity of the mobile unit laterally by controlling actuators, and shits the center of gravity laterally for the next step after detecting that the mobile unit has passed over the previous step.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventors: Ryosuke NAKAMURA, Azusa Amino
  • Patent number: 7939458
    Abstract: A refractory brick having durability equal to alumina-magnesia castable materials, which is especially suitable for a ladle for steel making is provided. A refractory brick prepared by using an alumina raw material and a magnesia raw material containing 90% by mass or more of a fine powder of not more than 0.5 mm, press molding and then heat treating at 100° C. or higher and not higher than 1,150° C., the refractory brick containing Al2O3 and MgO in a total sum of 90% by mass or more, from 4 to 16% by mass of MgO, from 0.5 to 5% by mass of SiO2, and Na2O and K2O in a total sum of from 0.3 to 2% by mass, with the remainder being inevitable impurities and Al2O3.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: May 10, 2011
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Ryosuke Nakamura, Hiroyuki Shikama, Hisashi Tomiya, Hisaharu Sasaki
  • Publication number: 20110054681
    Abstract: A robot, having left and right leg portions on a lower portion of a body, each of the legs has a wheel attached at a tip of the leg portion, to be drivable, a suspension having a spring and a dumper attached in parallel, between the wheel and the body, and an actuator attached between the suspension and the body. The suspension and the actuator are connected in series, and an inclination detecting means mounted on the body detects an inclination angle and an angular velocity of the robot with respect to a direction of gravity. A control instruction value outputting means controls the actuator upon basis of information thereof, so that the robot travels along a target angle and a target angular velocity thereof. The, spring is connected with an actuator expanding and constructing up and down, in series.
    Type: Application
    Filed: August 9, 2010
    Publication date: March 3, 2011
    Applicant: HITACHI, LTD.
    Inventors: Azusa AMINO, Saku EGAWA, Ryosuke NAKAMURA
  • Publication number: 20100109059
    Abstract: Disclosed herein is a semiconductor device, including: a gate electrode formed on a semiconductor substrate through a gate insulating film; an extension region formed in the semiconductor substrate on a source side of the gate electrode; a source region formed in the semiconductor substrate on the source side of the gate electrode through the extension region; an LDD region formed in the semiconductor substrate on a drain side of the gate electrode; and a drain region formed in the semiconductor substrate on the drain side of the gate electrode through the LDD region; wherein the extension region is formed at a higher concentration than that of the LDD region so as to be shallower than the LDD region.
    Type: Application
    Filed: October 23, 2009
    Publication date: May 6, 2010
    Applicant: SONY CORPORATION
    Inventor: Ryosuke Nakamura
  • Publication number: 20100082204
    Abstract: An inverted pendulum type moving mechanism, enabling to detect a single-wheel idling when it occurs therein, thereby to maintain a standing condition even in case where an idling maintenance time is long, comprises: left and right wheels; a moving mechanism having traveling motors, which rotationally drive those wheels; an upper body, which is supported on the moving mechanism; and a control apparatus, which controls the moving mechanism, wherein the control apparatus comprises an idling detector unit for the wheels and a traction return detector unit, and executes a double-wheels standing travel control when no idling is detected within the idling detector unit, or a loading-wheel standing control when the idling is detected within the idling detector unit, and further the control apparatus executes an idling wheel control is executed upon the idling wheel for urging traction return, and turns back to the loading-wheel standing control when no traction return is detected within the traction return detector u
    Type: Application
    Filed: September 30, 2009
    Publication date: April 1, 2010
    Inventors: Daisuke KIKUCHI, Saku Egawa, Ryosuke Nakamura
  • Patent number: 7658245
    Abstract: There is provided a high-speed and stable robot apparatus realizing stable walking by surely grounding legs having wheels even on an irregular ground surface. The mobile robot includes a body having a control device and an inclination angle detecting device which detects an inclination angle and an angular velocity, and the plurality of legs each having a thigh part and a lower limb part. The thigh part is rotatable around an X-axis, which is a front direction with respect to the body, and around a Y-axis which is a side surface direction with respect to the body. The robot comprises wheels rotatable around the Y-axis and movable supporting parts rotatable around the Y-axis and capable of being grounded on a road surface, which are provided on lower portions of the lower limb parts.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 9, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Ryosuke Nakamura, Azusa Amino
  • Patent number: 7649331
    Abstract: A mobile robot has a mobile mechanism, a swing mechanism and a control unit. The mobile mechanism is of a coaxial two-wheeled type and controls a forward thrust using inverted pendulum control. The swing mechanism actively swings an upper body laterally with respect to the mobile mechanism. A centrifugal force and a gravitational force act on a center of gravity of the mobile robot. A swing attitude is controlled such that a location of intersection of an extension of a composite vector of the forces acting on the center of gravity of the mobile robot and a ground plane of wheels is kept between left and right wheels.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: January 19, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Hosoda, Saku Egawa, Junichi Tamamoto, Ryosuke Nakamura, Toshihiko Horiuchi