Patents by Inventor Keisuke Ueda

Keisuke Ueda 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: 20140261182
    Abstract: The present invention provides a vacuum processing apparatus capable of reducing attachment of particles generated in a processing space to an inner wall of a chamber, and of easily adjusting pressure in the processing space while introducing a gas into the processing space at a desired flow rate. A vacuum processing apparatus according to one embodiment includes: a container; a gas exhaust portion; a substrate holder configured to retain a substrate; a shield provided to surround the substrate holder and dividing an inside of the container into a processing space and an outside space; a gas introducing portion; a plasma generating portion; and an exhaust portion provided to the shield having a communication path through which the processing space and the outside space communicate, wherein at least part of the communication path is hidden from a region where the plasma generating portion generates the plasma.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 18, 2014
    Applicant: CANON ANELVA CORPORATION
    Inventors: Toshikazu NAKAZAWA, Norihito TSUKAMOTO, Keisuke UEDA, Eiji OZAKI
  • Publication number: 20140266342
    Abstract: A high-frequency signal processing device having a frequency synthesizer (PLL: Phase Locked Loop) is provided. A control circuit measures oscillation frequencies obtained upon setting a bias current of an oscillation circuit to first and second bias setting values and acquires a frequency difference amount of the oscillation frequencies. The frequency difference amount may be acquired as difference amount of setting values of a coarse adjustment capacitance setting signal (CTRM) using, for example, an automatic frequency selector unit. The control circuit retains a relationship of a difference amount of bias setting values and a difference value of setting values of the CTRM and approximating the relationship to a linear function. Thereafter, the control circuit defines, upon switching the bias current during locking of the PLL, the CTRM based on the linear function and switches the CTRM together with the bias current.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Chihiro ARAI, Toshiya UOZUMI, Keisuke UEDA
  • Patent number: 8836239
    Abstract: An LED lighting device includes a converter for converting a power source voltage into a DC voltage and outputting it to an LED unit; and a controller for controlling an output of the converter. The converter has a chopper circuit including a series circuit of an inductance element and a capacitor; a switching element connected to the inductance element in series and turned on/off by the controller; and a diode as discharging path of the inductance element during an OFF state of the switching element. The controller controls an on/off time of the switching element such that a current supplied to the LED unit during a specific time period after a lighting operation is started becomes smaller than a current supplied to the LED unit in a steady state by using a voltage generated in a secondary coil of the inductance coil as an operating voltage thereof.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 16, 2014
    Assignee: Panasonic Corporation
    Inventors: Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda, Hisaya Takikita
  • Patent number: 8786201
    Abstract: An LED lighting device includes a power converter for outputting a variable output voltage, two LED lamps being connected in series between output terminals of the power converter; a current detector for detecting an output current from the power converter; a first detector for detecting the output voltage of the power converter and generating a first detection voltage corresponding to the output voltage; a second detector for detecting an applied voltage to one of the two LED lamps and generating a second detection voltage corresponding to the applied voltage; and a controller for controlling the power converter to adjust the output voltage to thereby make the output current coincide with a target value. The controller controls the power converter to decrease the output voltage if at least one of the second detection voltage and the deference between the first and the second detection voltage does not fall within a range.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: July 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda, Hisaya Takikita
  • Patent number: 8754713
    Abstract: In an ADPLL composed of a digital circuit, a technique improving phase difference detection in a vicinity of a phase difference of 0 (zero) is provided. A feedback loop comprises a PFD comparing phases and frequencies of a reference signal and a feedback signal, a TDC converting an output of the PFD into a digital value, a DLF removing a high frequency noise component from an output of the TDC, a DCO controlled based on an output of the DLF and a DIV frequency-dividing an output the DCO and outputting the feedback signal. An offset value is added at any portion of the feedback loop, a phase of the feedback signal is controlled and a value other than 0 is inputted to the TDC even when the ADPLL is locked.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: June 17, 2014
    Assignees: Renesas Electronics Corporation, Epoch Microelectronics, Inc.
    Inventors: Toshiya Uozumi, Keisuke Ueda, Mitsunori Samata, Satoru Yamamoto, Russell P Mohn, Aleksander Dec, Ken Suyama
  • Patent number: 8696604
    Abstract: A muscle force assisting can increase a bending angle of a second attachment with respect to a first attachment. The muscle force assisting device includes the first attachment arranged along one bone of a joint, the second attachment arranged along the other bone of the joint, and an artificial muscle having one end provided on the first attachment and having the other end provided on the second attachment, an actuator that is extensible or contractible by supplying or discharging a substance such as gas, liquid and solid, or a mixture thereof is used as the artificial muscle, and the muscle force assisting device assists motion of a user's elbow, knee and wrist, the one end of the artificial muscle can be displaced with respect to the first attachment, the one end of the artificial muscle is displaced, and a bending angle of the second attachment with respect to the first attachment is increased as compared with a case where the one end of the artificial muscle is not displaced.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: April 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Takashi Kawakami, Toshihiko Ishiko, Keisuke Ueda
  • Patent number: 8648544
    Abstract: An illumination lighting apparatus is connected to, as an external apparatus, any of a human body sensing sensor configured to detect presence/absence of a person, an illuminance sensor configured to detect space illuminance, and a dimmer which arbitrarily adjusts the space illuminance, and is configured to produce an output control signal for controlling an optical output of a light source based on a signal output from the external apparatus. The illumination lighting apparatus includes: an external apparatus determining unit configured to determine which kind of the external apparatus is connected based on the signal output from the external apparatus; and a signal processing unit configured to produce the output control signal based on the signal output from the external apparatus.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: February 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomohiro Sasakawa, Naoki Onishi, Masafumi Yamamoto, Keisuke Ueda, Katsunobu Hamamoto, Kei Mitsuyasu
  • Patent number: 8597212
    Abstract: A wrist assisting apparatus can smoothly bend and stretch a joint even if a turning shaft of a joint and a rotation shaft of a wearing tool are deviated from each other. Also, an excessive load is not applied to a user. The wrist assisting apparatus of the present invention includes a palm support member for supporting a hand, angle changing members connected to sides of the palm support member, a front arm wearing tool disposed along the front arm, and joint members for forming a rotation shaft of the angle changing member with respect to the front arm wearing tool, wherein the angle changing members are provided on both sides of the palm support member, the joint members are provided on the angle changing members, respectively, and the joint members are located on both sides of a wrist.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: December 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Kawakami, Toshihiko Ishiko, Keisuke Ueda
  • Publication number: 20130300477
    Abstract: A semiconductor device includes a controlled oscillator and a control unit. The controlled oscillator includes a resonance circuit, an amplification unit, and a current adjustment unit. The resonance circuit includes one or a plurality of inductors and a first capacitive unit having a variable capacitance value. The amplification unit is connected to the resonance circuit, and outputs a local oscillation signal having an oscillation frequency corresponding to a resonance frequency of the resonance circuit. The current adjustment unit adjusts a value of a drive current to be supplied to the amplification unit. The control unit controls the capacitance value of the first capacitive unit and the current adjustment unit. When the control unit instructs the current adjustment unit to change the value of the drive current to be supplied to the amplification unit, the control unit also changes the capacitance value of the first capacitive unit.
    Type: Application
    Filed: January 26, 2011
    Publication date: November 14, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Keisuke Ueda, Toshiya Uozumi, Ryo Endo
  • Patent number: 8564206
    Abstract: An LED lighting device includes a step-up chopper which includes a first switching element and increases an output voltage applied from a DC power supply, a step-down chopper which includes a second switching element and decreases the output voltage from the step-up chopper to apply the decreased output voltage to a light source unit having light emitting diodes, a controller which controls operations of the first and the second switching element, a current limiter which includes a current limiting element and a switch; and a voltage detection unit. The controller stops an operation of the first switching element when the voltage detection unit detects the voltage applied to the light source unit exceeding a predetermined voltage value, and the switch allows a current to flow through the path passing through the current limiting element when the operation of the first switching element is stopped.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 22, 2013
    Assignee: Panasonic Corporation
    Inventors: Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda, Hisaya Takikita
  • Publication number: 20130257547
    Abstract: A conventional semiconductor device has a problem that acquisition of variation information of circuit elements constructing the semiconductor device is not easy. According to an embodiment, a semiconductor device has a control circuit which makes an oscillation circuit operate by at least two operation current values, obtains first frequency information related to frequency of an output signal corresponding to a first operation current value and second frequency information related to frequency of an output signal corresponding to a second operation current value, and obtains manufacture variation information of a circuit element on the basis of the difference between the first and second frequency information.
    Type: Application
    Filed: March 3, 2013
    Publication date: October 3, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Chihiro Arai, Toshiya Uozumi, Keisuke Ueda
  • Patent number: 8425438
    Abstract: A motion assist apparatus is provided with an attaching member that has a glove shape with finger portions and a middle hand portion that is attachable to one of hands of a user, a back-side actuator that is freely expanded and contracted, and bridged between a tip of each of the finger portions and the middle hand portion on the back side of the attaching member, and a palm-side actuator that is freely expanded and contracted, and bridged between the tip of each of the finger portions and the middle hand portion on the palm side of the attaching member, and in this structure, the palm-side actuator is provided with a wire unit formed of two wires that are disposed on each of the finger portions on the palm side from the tip of each of the finger portions on the back side to the middle hand portion along the finger portion, passing through two side portions of the finger portion, so that intervals therebetween are made different at respective positions corresponding to joints of the finger portion, and rubber
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 23, 2013
    Assignee: Activelink Co., Ltd.
    Inventors: Hiromichi Fujimoto, Go Shirogauchi, Keisuke Ueda, Motoshi Hori, Tatsuro Mizutani
  • Publication number: 20130051290
    Abstract: To reduce the influence of a spurious in a high-frequency signal processing device and a wireless communication system each provided with a digital type PLL circuit. In a digital type PLL circuit including a digital phase comparator unit, a digital low-pass filter, a digital control oscillator unit, and a multi-module driver unit (frequency divider unit), the clock frequency of a clock signal in the digital phase comparator unit is configured selectably among a plurality of options. The clock frequency is selected among frequencies which are integer multiples of a reference frequency, in accordance with which frequency band of a standard is to be set for an oscillation output signal of the digital control oscillator unit.
    Type: Application
    Filed: July 27, 2012
    Publication date: February 28, 2013
    Inventors: Ryo ENDO, Keisuke Ueda, Toshiya Uozumi
  • Patent number: 8331520
    Abstract: A PLL circuit of which low power consumption and miniaturization are satisfied at the same time is provided. A phase comparator of the PLL circuit includes a counter and a time-to-digital converter. The counter receives a reference clock signal and a low frequency clock signal obtained by dividing an output of a digital controlled oscillator, and a high frequency clock signal. The counter detects a phase difference between the reference clock signal and the low frequency clock signal by counting the clock number of the high frequency clock signal. The time-to-digital converter receives the reference clock signal and the low frequency clock signal. The time-to-digital converter detects the phase difference between the reference clock signal and the low frequency clock signal to the accuracy of a time period shorter than a cycle of the high frequency clock signal, after the output of counter reaches a predetermined range.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: December 11, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Keisuke Ueda, Toshiya Uozumi, Ryo Endo
  • Publication number: 20120187847
    Abstract: An LED lighting device includes a DC/DC power converter having output terminals coupled to respective lamp sockets. A controller receives signals from a current sensor and a voltage sensor, and controls the DC/DC power converter to increase/decrease an output voltage based on a sensed output current with respect to a target value. A sensed output voltage is compared to predetermined upper and lower limit values, and the DC/DC power converter is disabled when the output voltage exceeds the predetermined upper limit value or falls below the predetermined lower limit. The controller further measures an accumulated lighting time of the device, and after the accumulated lighting time has exceeded a predetermined switching time, decreases the upper limit value monotonously or in increments as the accumulated lighting time passes.
    Type: Application
    Filed: December 20, 2011
    Publication date: July 26, 2012
    Inventors: Katsunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda, Hisaya Takikita
  • Patent number: 8212365
    Abstract: A printed wiring board is configured to be connected to an organic substrate in a state where a semiconductor chip is mounted thereon. A plurality of first layers are formed of a material having the same coefficient of thermal expansion as the semiconductor chip. A plurality of second layers are formed of a material having the same coefficient of thermal expansion as the organic substrate. The first layers have different thicknesses from each other and the second layers have different thicknesses from each other. The first layers and the second layers form a lamination by being laminated alternately one on another. The thicknesses of the first layers decrease from a side where the semiconductor chip is mounted toward a side where the organic substrate is connected. The thicknesses of the second layers decrease from the side where the organic substrate is connected toward the side where the semiconductor chip is mounted.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: July 3, 2012
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Masahiro Sunohara, Keisuke Ueda
  • Publication number: 20120161649
    Abstract: An LED lighting device includes a power converter for outputting a variable output voltage, two LED lamps being connected in series between output terminals of the power converter; a current detector for detecting an output current from the power converter; a first detector for detecting the output voltage of the power converter and generating a first detection voltage corresponding to the output voltage; a second detector for detecting an applied voltage to one of the two LED lamps and generating a second detection voltage corresponding to the applied voltage; and a controller for controlling the power converter to adjust the output voltage to thereby make the output current coincide with a target value. The controller controls the power converter to decrease the output voltage if at least one of the second detection voltage and the deference between the first and the second detection voltage does not fall within a range.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 28, 2012
    Applicant: Panasonic Electric Works Co., Ltd.
    Inventors: Katunobu HAMAMOTO, Masafumi YAMAMOTO, Keisuke UEDA, Hisaya TAKIKITA
  • Patent number: 8207677
    Abstract: An illumination apparatus, which controls a supply power supplied to a lamp according to an accumulated interval of on-time and a light control signal, is configured in which a maximum supply power supplied to the lamp according to the accumulated interval of on-time is supplied to the lamp when the supply power to the lamp corresponding to the light control signal is above the maximum supply power to the lamp according to the accumulated interval of on-time at a point when the illumination apparatus is turned on or the lamp starts lighting. When the light control signal is operated so as to exceed a level of the maximum supply power to the lamp according to the accumulated interval of on-time or the light control signal varies more than a prescribed level, the supply power is shifted to an adjustable condition so as to be higher than the maximum supply power to the lamp according to the accumulated interval of on-time.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: June 26, 2012
    Assignee: Panasonic Corporation
    Inventors: Naoki Onishi, Keisuke Ueda
  • Publication number: 20120153863
    Abstract: An LED lighting device includes a converter for converting a power source voltage into a DC voltage and outputting it to an LED unit; and a controller for controlling an output of the converter. The converter has a chopper circuit including a series circuit of an inductance element and a capacitor; a switching element connected to the inductance element in series and turned on/off by the controller; and a diode as discharging path of the inductance element during an OFF state of the switching element. The controller controls an on/off time of the switching element such that a current supplied to the LED unit during a specific time period after a lighting operation is started becomes smaller than a current supplied to the LED unit in a steady state by using a voltage generated in a secondary coil of the inductance coil as an operating voltage thereof.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Applicant: Panasonic Electric Works Co., Ltd.
    Inventors: Katunobu HAMAMOTO, Masafumi YAMAMOTO, Keisuke UEDA, Hisaya TAKIKITA
  • Publication number: 20120153832
    Abstract: An LED lighting device includes a step-up chopper which includes a first switching element and increases an output voltage applied from a DC power supply, a step-down chopper which includes a second switching element and decreases the output voltage from the step-up chopper to apply the decreased output voltage to a light source unit having light emitting diodes, a controller which controls operations of the first and the second switching element, a current limiter which includes a current limiting element and a switch; and a voltage detection unit. The controller stops an operation of the first switching element when the voltage detection unit detects the voltage applied to the light source unit exceeding a predetermined voltage value, and the switch allows a current to flow through the path passing through the current limiting element when the operation of the first switching element is stopped.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Applicant: Panasonic Electric Works Co., Ltd.
    Inventors: Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda, Hisaya Takikita