Patents by Inventor Naoki Masuda

Naoki Masuda 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: 9415755
    Abstract: A vehicle brake hydraulic control apparatus includes a reservoir, a hydraulic pressure pump, an orifice, a damper and a one-way valve. The reservoir absorbs an excess brake hydraulic pressure of a wheel brake. The hydraulic pressure pump suctions brake fluid absorbed by the reservoir and returns the suctioned brake fluid to a master cylinder through a return line. The orifice is provided in the return line. The damper is connected to the return line between the orifice and the hydraulic pressure pump and damps discharge pressure pulsation of the hydraulic pressure pump. The one-way valve is provided in the return line between the damper and the orifice and prevents a hydraulic flow from an orifice side to a damper side.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: August 16, 2016
    Assignee: AUTOLIV NISSIN BRAKE SYSTEMS JAPAN CO., LTD.
    Inventors: Masatoshi Iyatani, Naoki Masuda
  • Patent number: 9229614
    Abstract: An example information processing device calculates a specified position Ps2 in a three-dimensional virtual space displayed on a screen of a display device. The information processing device calculates a two-dimensional input position Pi2 on the screen based on an input of a user. The specified position Ps2 is calculated based on the input position Pi2. The information processing device calculates, as the specified position Ps2, a three-dimensional position that satisfies a distance condition and also satisfies a range condition. The distance condition is a condition regarding the distance from a predetermined reference position in the virtual space. The range condition is a condition that an on-screen position corresponding to the three-dimensional position be within a range determined by the on-screen position corresponding to the reference position and the input position Pi2.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: January 5, 2016
    Assignee: NINTENDO CO., LTD.
    Inventor: Naoki Masuda
  • Publication number: 20150355533
    Abstract: A structure for cooling a semiconductor element includes an element body and a lead terminal extending from one surface of the element body in a direction intersecting the one surface. The semiconductor element cooling structure includes a heat sink. The heat sink includes a contact surface that is in contact with the one surface of the element body, a through-hole which is formed in the contact surface and through which the lead terminal passes, and a space portion that communicates with the through-hole and that is configured to house a substrate connected to the lead terminal.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 10, 2015
    Inventor: Naoki MASUDA
  • Patent number: 9155231
    Abstract: A compact motor-drive unit wherein each component can be stably fixed to the unit. A motor-drive unit has a plurality of substrates each having a circuit for driving a motor; semiconductor devices mounted on the respective substrates; at least one smoothing capacitor mounted on at least one of the substrates; and a heat radiator having a heat-transferring surface adjacent to the semiconductors. The smoothing capacitor is positioned within a swept area formed by moving the first substrate arranged generally parallel to a base surface, in a counter-front direction, so that the smoothing capacitor is separated from the first substrate.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 6, 2015
    Assignee: Fanuc Corporation
    Inventors: Naoki Masuda, Kiichi Inaba
  • Patent number: 8985779
    Abstract: Provided is a LED light source box that includes: case (10) having body (11) and cover (13) to hermetically seal opening (12) of body (11); light source unit (15) having LED tight source (51) and holder (50) on which LED light source (51) is mounted; and cooling unit (61) having first cooling member (60) in contact with holder (50) and second cooling member (61) in contact with first cooling member (60). Holder (50) is fixed to cover (13) by fixing member (55) in a state where cooling unit (16) is sandwiched between holder (50) and cover (13). Heat insulation member (70) is disposed between holder (50) and fixing member (55), and air gap (91) is disposed between the outer peripheral surface of holder (50) and the inner peripheral surface of body (11).
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: March 24, 2015
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Naoki Masuda
  • Publication number: 20140373774
    Abstract: A method for calculating a height position of a silicon melt surface at the time of pulling a CZ silicon single crystal is disclosed, including: obtaining a first crystal diameter measured from a fusion ring on a boundary of the silicon melt and the silicon single crystal by using a CCD camera installed at an arbitrary angle relative to the silicon single crystal, and a second crystal diameter measured by using two CCD cameras installed parallel to both ends of a crystal diameter of the silicon single crystal; and calculating the height position of the silicon melt surface in the crucible during pulling of the silicon single crystal from a difference between the first crystal diameter and the second crystal diameter. As a result, a method for enabling further accurately calculating a height position of a silicon melt surface at the time of pulling a silicon single crystal is provided.
    Type: Application
    Filed: January 22, 2013
    Publication date: December 25, 2014
    Applicant: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Naoki Masuda, Takahiro Yanagimachi
  • Publication number: 20140375560
    Abstract: An example information processing device calculates a specified position Ps2 in a three-dimensional virtual space displayed on a screen of a display device. The information processing device calculates a two-dimensional input position Pi2 on the screen based on an input of a user. The specified position Ps2 is calculated based on the input position Pi2. The information processing device calculates, as the specified position Ps2, a three-dimensional position that satisfies a distance condition and also satisfies a range condition. The distance condition is a condition regarding the distance from a predetermined reference position in the virtual space. The range condition is a condition that an on-screen position corresponding to the three-dimensional position be within a range determined by the on-screen position corresponding to the reference position and the input position Pi2.
    Type: Application
    Filed: November 6, 2013
    Publication date: December 25, 2014
    Applicant: NINTENDO CO., LTD.
    Inventor: Naoki MASUDA
  • Patent number: 8878388
    Abstract: A motor control device has a current value sampling unit configured to sample a current value of a motor, a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor, and a power supply stop unit configured to stop supply of power from a control power supply to a peripheral depending on power stored in a DC link part and power to which the control power source can supply when an alternating-current power source fails.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: November 4, 2014
    Assignee: FANUC Corporation
    Inventors: Naoki Masuda, Kiichi Inaba
  • Publication number: 20140313490
    Abstract: A light source apparatus according to the present invention includes a circuit board; a light source mounted on the circuit board; a first temperature measurement element that measures an ambient temperature of the circuit board and outputs a first signal that represents the measured result; a second temperature measurement element that measures a temperature of the circuit board and outputs a second signal that represents the measured result; and a light source drive control section that controls driving of the light source. The light source drive control section does not drive the light source if the temperature represented by the second signal is lower than the temperature represented by the first signal.
    Type: Application
    Filed: September 13, 2012
    Publication date: October 23, 2014
    Inventors: Junichi Miyamoyo, Naoki Masuda, Shuichi Nakanishi
  • Publication number: 20140292066
    Abstract: A vehicle brake hydraulic control apparatus includes a reservoir, a hydraulic pressure pump, an orifice, a damper and a one-way valve. The reservoir absorbs an excess brake hydraulic pressure of a wheel brake. The hydraulic pressure pump suctions brake fluid absorbed by the reservoir and returns the suctioned brake fluid to a master cylinder through a return line. The orifice is provided in the return line. The damper is connected to the return line between the orifice and the hydraulic pressure pump and damps discharge pressure pulsation of the hydraulic pressure pump. The one-way valve is provided in the return line between the damper and the orifice and prevents a hydraulic flow from an orifice side to a damper side.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: NISSIN KOGYO CO., LTD.
    Inventors: Masatoshi IYATANI, Naoki MASUDA
  • Patent number: 8823306
    Abstract: A PWM signal generation unit generates a PWM signal to drive a motor, based on a current value of the motor sampled by a current value sampling unit, a position or speed of the motor sampled by a motor sampling unit, and a position or speed of a driven object sampled by a driven object sampling unit. An operation stop unit stops the operation of any one of the motor sampling unit and the driven object sampling unit depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: September 2, 2014
    Assignee: Fanuc Corporation
    Inventors: Naoki Masuda, Kiichi Inaba
  • Publication number: 20140198455
    Abstract: A compact motor-drive unit wherein each component can be stably fixed to the unit. A motor-drive unit has a plurality of substrates each having a circuit for driving a motor; semiconductor devices mounted on the respective substrates; at least one smoothing capacitor mounted on at least one of the substrates; and a heat radiator having a heat-transferring surface adjacent to the semiconductors. The smoothing capacitor is positioned within a swept area formed by moving the first substrate arranged generally parallel to a base surface, in a counter-front direction, so that the smoothing capacitor is separated from the first substrate.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 17, 2014
    Applicant: FANUC CORPORATION
    Inventors: Naoki Masuda, Kiichi Inaba
  • Patent number: 8657390
    Abstract: A vehicle brake fluid pressure control apparatus includes: a normally open electromagnetic valve which adjusts a differential pressure between an upstream side and a downstream side; and a control unit including a memory part which stores a valve closing map which shows a relationship between the differential pressure between the upstream side and the downstream side of the pressure regulator valve and an output current value for closing the pressure regulator valve and a valve opening map which shows a relationship between the differential pressure and an output current value for opening the pressure regulator valve, wherein when attempting to reduce a fluid pressures, the control unit executes a current value switching control which controls a current flowing to the pressure regulator valve by selecting alternately an output current value of the valve opening map and an output current value of the valve closing map.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: February 25, 2014
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Naoki Masuda, Nobuyuki Nomura
  • Publication number: 20130342149
    Abstract: A PWM signal generation unit generates a PWM signal to drive a motor, based on a current value of the motor sampled by a current value sampling unit, a position or speed of the motor sampled by a motor sampling unit, and a position or speed of a driven object sampled by a driven object sampling unit. An operation stop unit stops the operation of any one of the motor sampling unit and the driven object sampling unit depending on the power stored in the DC link part and power to which the control power source can supply when the alternating-current power source fails.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 26, 2013
    Inventors: Naoki MASUDA, Kiichi INABA
  • Publication number: 20130342013
    Abstract: A motor control device has a current value sampling unit configured to sample a current value of a motor, a PWM signal generation unit configured to generate a PWM signal to drive the motor, based on the sampled current value of the motor, and a power supply stop unit configured to stop supply of power from a control power supply to a peripheral depending on power stored in a DC link part and power to which the control power source can supply when an alternating-current power source fails.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 26, 2013
    Inventors: Naoki MASUDA, Kiichi INABA
  • Patent number: 8575884
    Abstract: A motor drive control system connected to an alternating current/direct current conversion circuit which converts alternating-current voltage or alternating current to direct-current voltage or direct current are provided. A control circuit controls supply or stop of the supply of the direct-current voltage or direct current from the alternating current/direct current conversion circuit to the first number of first direct current/alternating current conversion circuits and the second number of second direct current/alternating current conversion circuits while maintaining the total of the outputs of the first number of motors and the outputs of the second number of motors at a certain power not more than power which can be supplied from the alternating current/direct current conversion circuit.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: November 5, 2013
    Assignee: FANUC Corporation
    Inventors: Naoki Masuda, Kiichi Inaba
  • Publication number: 20130182013
    Abstract: An apparatus includes an input unit and a control unit. The input unit is configured to receive an input from a user. The control unit is configured to control a display to display an image and an image mark, move over the image to a position indicated by the input unit, and display an indicator showing an amount of time until the image mark is fixed to a current location of the image mark on the image.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 18, 2013
    Applicant: SONY CORPORATION
    Inventors: Satoshi NAGATA, Shigeharu Kondo, Satoru Inoue, Atsuko Shimoda, Naoki Masuda, Wonjoon Cho, Hideaki Kamei, Kenichi Odashima, Yusuke Nakashita
  • Patent number: 8480308
    Abstract: A tapered roller bearing includes an outer ring, an inner ring, a plurality of tapered rollers interposed between the outer ring and the inner ring, and a cage for the tapered rollers. Ra is smaller than Rb where Ra represents a radius of curvature of a large end face of the tapered roller and Rb represents a radius of curvature of an end face of a large rib portion of the inner ring.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: July 9, 2013
    Assignee: JTEKT Corporation
    Inventors: Naoki Masuda, Kazutoshi Toda, Hiroki Matsuyama, Kouji Kawaguchi, Hiroyuki Ohshima
  • Publication number: 20130070453
    Abstract: A display device is provided with a plurality of solid-state light sources (101-103) and a coolant-circulating means (100) that is equipped with a flow path (100a) formed to pass through each of the solid-state light sources (101-103) and that circulates a coolant via the flow path (100a). Each of the solid-state light sources (101-103) has the property that the luminance thereof changes in response to a temperature change. The flow path (100a) is formed such that the coolant first passes through solid-state light sources having a greater degree of luminance change according to the above-described property of the solid-state light sources (101-103).
    Type: Application
    Filed: May 18, 2011
    Publication date: March 21, 2013
    Applicants: NEC DIsplaay Solutions, Ltd., NEC Corporation
    Inventors: Masaki Chiba, Naoki Masuda
  • Publication number: 20120300179
    Abstract: Provided is a LED light source box that includes: case (10) having body (11) and cover (13) to hermetically seal opening (12) of body (11); light source unit (15) having LED tight source (51) and holder (50) on which LED light source (51) is mounted; and cooling unit (61) having first cooling member (60) in contact with holder (50) and second cooling member (61) in contact with first cooling member (60). Holder (50) is fixed to cover (13) by fixing member (55) in a state where cooling unit (16) is sandwiched between holder (50) and cover (13). Heat insulation member (70) is disposed between holder (50) and fixing member (55), and air gap (91) is disposed between the outer peripheral surface of holder (50) and the inner peripheral surface of body (11).
    Type: Application
    Filed: February 23, 2010
    Publication date: November 29, 2012
    Inventor: Naoki Masuda