Patents by Inventor Satoshi Yasuda

Satoshi Yasuda 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: 8154890
    Abstract: An inverter apparatus converts a DC power of a capacitor charged via a rectifier circuit connected to a first AC power system into an AC power, and supplies the AC power to a second AC power system. The inverter apparatus includes a discharge circuit, a control circuit, a trigger circuit, a first voltage-sag detection circuit, a control power circuit, and a second voltage-sag detection circuit. When the second voltage-sag detection circuit detects a voltage sag of the control power circuit below a threshold, the trigger circuit generates a discharge command signal for causing the discharge circuit to discharge a charge from the capacitor.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 10, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Yasuda, Hitoshi Teramoto, Michihiro Tadokoro
  • Patent number: 8085288
    Abstract: A CTP system is provided, which allows its continuous use even if some of laser diodes located at dispersed sites are in a non-light emitting state due to breakage or the like. In the case where some channels are in the non-light emitting state, channel-by-channel exposure data is generated to describe the way that exposure should be performed by use of specific light-emitting channels that are determined by the locations of non-light emitting channels, while an exposure head is moved also through (a) complementary interval(s) before and/or after a standard interval, the standard interval being the interval the exposure head is moved through in normal mode. Then, the transport unit moves the exposure head through the standard interval and through the complementary interval(s), during which period the exposure controller causes the specific light-emitting channels to emit exposure light according to the channel-by-channel exposure data, thereby forming an exposed area.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: December 27, 2011
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Satoshi Yasuda, Mamoru Fujimoto, Hiroshi Iwasa
  • Patent number: 8012884
    Abstract: A predicted film formation rate value is computed based on a film formation rate prediction formula obtained in advance and apparatus parameters obtained during a previously-performed film formation process. A processing time required for an amount of film formed on a wafer to reach a predetermined target film thickness is computed based on the computed predicted film formation rate value and the target film thickness. Then, according to the computed processing time, a film-formation process is performed on wafers. In addition, it is determined whether the computed predicted film formation rate value is within a predetermined range, and only when it is determined to be within the predetermined range, the film formation process may be performed.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: September 6, 2011
    Assignee: Panasonic Corporation
    Inventors: Satoshi Yasuda, Shin-ichi Imai
  • Patent number: 7957043
    Abstract: In an image recording apparatus, shift times for shifting switching timings of light modulator elements are obtained so that rise times (U1) after input of output start signals to driving elements connected to respective light modulator elements of a spatial light modulator and fall times (D1) after input of output stop signals become a constant target rise time (U2) and a constant target fall time (D2). This makes it possible to suppress unevenness of the rise times and the fall times after correction of light amounts even if light modulator elements where the rise times and the fall times change by correction of light amounts are used and consequently, an image can be appropriately recorded without a complicate apparatus.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: June 7, 2011
    Assignee: Dainippon Screen MFG Co., Ltd.
    Inventors: Osamu Morizono, Satoshi Yasuda, Yoshiyuki Nishigaito
  • Patent number: 7871932
    Abstract: In the semiconductor device manufacturing method of the present invention, first, the emissivity of a wafer placed in a chamber is measured. Then, the fluctuation rate of a wafer physical quantity that fluctuates in association with the given thermal energy is calculated based on an estimate expression, which are obtained in advance, presenting the relationship between the thermal energy quantity emitted from the heat source for heating the wafer, wafer emissivity and the wafer physical quantity fluctuation rate and on the measured emissivity. Subsequently, the processing time for the physical quantity to be a specific value is calculated based on the calculated fluctuation rate. Then, the thermal process is conducted for the calculated processing time.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: January 18, 2011
    Assignee: Panasonic Corporation
    Inventor: Satoshi Yasuda
  • Patent number: 7755333
    Abstract: A SVC control section detects a bus voltage from an instrument transformer, and adjusts reactive power generated by a SVC according to the detected bus voltage. A cooperative control section generates a control command for controlling the interconnection and parallel-off of a phase lead capacitor and a phase lag reactor on the basis of the amount of reactive power generated by the SVC and the bus voltage detected by the instrument transformer and a voltage sensor. A voltage comparator compares the bus voltage with a predetermined threshold voltage set to a voltage lower than a lower limit value of a steady state fluctuation range of the bus voltage and outputs the comparison result to a circuit breaker control section. When the bus voltage is lower than the threshold voltage, the circuit breaker control section locks the control command from the cooperative control section.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: July 13, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Yasuda, Hitoshi Teramoto, Masatoshi Takeda, Michihiro Tadokoro
  • Publication number: 20100149844
    Abstract: An inverter apparatus converts a DC power of a capacitor charged via a rectifier circuit connected to a first AC power system into an AC power, and supplies the AC power to a second AC power system. The inverter apparatus includes a discharge circuit, a control circuit, a trigger circuit, a first voltage-sag detection circuit, a control power circuit, and a second voltage-sag detection circuit. When the second voltage-sag detection circuit detects a voltage sag of the control power circuit below a threshold, the trigger circuit generates a discharge command signal for causing the discharge circuit to discharge a charge from the capacitor.
    Type: Application
    Filed: June 15, 2009
    Publication date: June 17, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoshi YASUDA, Hitoshi TERAMOTO, Michihiro TADOKORO
  • Patent number: 7692415
    Abstract: A reactive power control apparatus for an AC power system includes a reactive power compensation device, a compensation capacitor device and a compensation capacitor control device. The compensation capacitor control device includes a detection voltage output circuit which outputs a bus detection voltage after the clearing of a voltage drop abnormality, corresponding to the AC voltage of a system bus after the voltage drop abnormality that occurred in the AC power system has been cleared, and a compensation capacitor control circuit which controls the connection status of a compensation capacitor with respect to the system bus. The compensation capacitor control circuit controls the connection status of the compensation capacitor with respect to the system bus, on the basis of the voltage level of the bus detection voltage after the clearing of the voltage drop abnormality.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: April 6, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Yasuda, Masatoshi Takeda, Hitoshi Teramoto
  • Publication number: 20100062157
    Abstract: An apparatus (CVD apparatus (1)) having a reaction chamber (3) for accommodating a substrate (2) formed with a metal catalyst film and means (gas supply pipes (5, 6)) for supplying a feedstock gas (9) and a catalyst activating material (10) into the reaction chamber (3) for manufacturing CNTs aligned in a direction perpendicular to the catalyst film surface (2a) of the substrate (2), wherein the means for supplying the feedstock gas (9) and the catalyst activating material (10) have a plurality of ejection holes placed at positions facing the catalyst film surface (2a) of the substrate (2), and the ejecting direction of the ejection holes is adjusted to the direction of alignment of CNTs grown from the metal catalyst film. This can provide a manufacturing technology for CNTs capable of mass-producing aligned CNTs at lower cost.
    Type: Application
    Filed: February 4, 2008
    Publication date: March 11, 2010
    Inventors: Kenji Hata, Satoshi Yasuda, Motoo Yumura
  • Publication number: 20100003831
    Abstract: A predicted film formation rate value is computed based on a film formation rate prediction formula obtained in advance and apparatus parameters obtained during a previously-performed film formation process. A processing time required for an amount of film formed on a wafer to reach a predetermined target film thickness is computed based on the computed predicted film formation rate value and the target film thickness. Then, according to the computed processing time, a film-formation process is performed on wafers. In addition, it is determined whether the computed predicted film formation rate value is within a predetermined range, and only when it is determined to be within the predetermined range, the film formation process may be performed.
    Type: Application
    Filed: June 29, 2009
    Publication date: January 7, 2010
    Inventors: Satoshi Yasuda, Shin-ichi Imai
  • Publication number: 20090232965
    Abstract: The present invention provides a method and an apparatus capable of mass-producing an aligned CNT aggregate of a desired height through automatic control of a CVD apparatus according to a growth height of the aligned CNT aggregate. According to the present invention, an aligned carbon nanotube aggregate growing on a substrate is irradiated with a parallel ray, and the size of a resulting shadow is measured with a measurement section using a telecentric optical system, which acts as if it has an infinite focal length, so as to detect, in real time, a growth height of the aligned carbon nanotube aggregate being synthesized, and the synthesis of the aligned carbon nanotube aggregate is terminated when the growth height of the aligned carbon nanotube aggregate reaches a predetermined state.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 17, 2009
    Inventors: Kenji Hata, Satoshi Yasuda, Motoo Yumura
  • Publication number: 20090128100
    Abstract: A SVC control section detects a bus voltage from an instrument transformer, and adjusts reactive power generated by a SVC according to the detected bus voltage. A cooperative control section generates a control command for controlling the interconnection and parallel-off of a phase lead capacitor and a phase lag reactor on the basis of the amount of reactive power generated by the SVC and the bus voltage detected by the instrument transformer and a voltage sensor. A voltage comparator compares the bus voltage with a predetermined threshold voltage set to a voltage lower than a lower limit value of a steady state fluctuation range of the bus voltage and outputs the comparison result to a circuit breaker control section. When the bus voltage is lower than the threshold voltage, the circuit breaker control section locks the control command from the cooperative control section.
    Type: Application
    Filed: May 6, 2008
    Publication date: May 21, 2009
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoshi Yasuda, Hitoshi Teramoto, Masatoshi Takeda, Michihiro Tadokoro
  • Publication number: 20080318347
    Abstract: In the semiconductor device manufacturing method of the present invention, first, the emissivity of a wafer placed in a chamber is measured. Then, the fluctuation rate of a wafer physical quantity that fluctuates in association with the given thermal energy is calculated based on an estimate expression, which are obtained in advance, presenting the relationship between the thermal energy quantity emitted from the heat source for heating the wafer, wafer emissivity and the wafer physical quantity fluctuation rate and on the measured emissivity. Subsequently, the processing time for the physical quantity to be a specific value is calculated based on the calculated fluctuation rate. Then, the thermal process is conducted for the calculated processing time.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 25, 2008
    Inventor: Satoshi YASUDA
  • Patent number: 7462847
    Abstract: An ion implanter is provided with a system for monitoring parameters of the ion implanter in real time to control respective components in the ion implanter. This system is allowed to have a function of calculating an accumulated dose distribution during ion implantation treatment and correcting a mechanical scan speed of a wafer holding section in a Y direction so as to render an accumulated dose uniform, a function of changing a magnetic field of a mass analyzing section to thereby control a center position of an ion beam, and a function of varying a suppression voltage of an aperture and an ion beam current to control a diameter of the ion beam.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: December 9, 2008
    Assignee: Panasonic Corporation
    Inventor: Satoshi Yasuda
  • Publication number: 20080259301
    Abstract: A CTP system is provided, which allows its continuous use even if some of laser diodes located at dispersed sites are in a non-light emitting state due to breakage or the like. In the case where some channels are in the non-light emitting state, channel-by-channel exposure data is generated to describe the way that exposure should be performed by use of specific light-emitting channels that are determined by the locations of non-light emitting channels, while an exposure head is moved also through (a) complementary interval(s) before and/or after a standard interval, the standard interval being the interval the exposure head is moved through in normal mode. Then, the transport unit moves the exposure head through the standard interval and through the complementary interval(s), during which period the exposure controller causes the specific light-emitting channels to emit exposure light according to the channel-by-channel exposure data, thereby forming an exposed area.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 23, 2008
    Inventors: Satoshi Yasuda, Mamoru Fujimoto, Hiroshi Iwasa
  • Publication number: 20080150496
    Abstract: A reactive power control apparatus for an AC power system includes a reactive power compensation device, a compensation capacitor device and a compensation capacitor control device. The compensation capacitor control device includes a detection voltage output circuit which outputs a bus detection voltage after the clearing of a voltage drop abnormality, corresponding to the AC voltage of a system bus after the voltage drop abnormality that occurred in the AC power system has been cleared, and a compensation capacitor control circuit which controls the connection status of a compensation capacitor with respect to the system bus. The compensation capacitor control circuit controls the connection status of the compensation capacitor with respect to the system bus, on the basis of the voltage level of the bus detection voltage after the clearing of the voltage drop abnormality.
    Type: Application
    Filed: April 30, 2007
    Publication date: June 26, 2008
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoshi Yasuda, Masatoshi Takeda, Hitoshi Teramoto
  • Publication number: 20070114456
    Abstract: An ion implanter is provided with a system for monitoring parameters of the ion implanter in real time to control respective components in the ion implanter. This system is allowed to have a function of calculating an accumulated dose distribution during ion implantation treatment and correcting a mechanical scan speed of a wafer holding section in a Y direction so as to render an accumulated dose uniform, a function of changing a magnetic field of a mass analyzing section to thereby control a center position of an ion beam, and a function of varying a suppression voltage of an aperture and an ion beam current to control a diameter of the ion beam.
    Type: Application
    Filed: August 11, 2006
    Publication date: May 24, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventor: Satoshi Yasuda
  • Publication number: 20070070361
    Abstract: In an image recording apparatus, shift times for shifting switching timings of light modulator elements are obtained so that rise times (U1) after input of output start signals to driving elements connected to respective light modulator elements of a spatial light modulator and fall times (D1) after input of output stop signals become a constant target rise time (U2) and a constant target fall time (D2). This makes it possible to suppress unevenness of the rise times and the fall times after correction of light amounts even if light modulator elements where the rise times and the fall times change by correction of light amounts are used and consequently, an image can be appropriately recorded without a complicate apparatus.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 29, 2007
    Inventors: Osama Morizono, Satoshi Yasuda, Yoshiyuki Nishigaito
  • Publication number: 20060086114
    Abstract: A constant-temperature fluid supply system is provided with a first constant-temperature fluid supply apparatus and a second constant-temperature fluid supply apparatus. The first constant-temperature fluid supply apparatus has an input side to which a cooling fluid not controlled in temperature is supplied, and an output side from which a first constant-temperature fluid having a stable temperature is supplied. The second constant-temperature fluid supply apparatus has an input side to which the first constant-temperature fluid is supplied, and an output side from which a second constant-temperature fluid having a more stable temperature than that of the first constant-temperature fluid is supplied.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 27, 2006
    Inventors: Tetsuro Nishiyama, Takkaki Honda, Hideo Saito, Satoshi Yasuda, Hideki Takekuma
  • Patent number: 6763209
    Abstract: A remanufacturing method for a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes (a) a frame separating step of separating the first frame and the second frame from each other; (b) a developing blade dismounting step of dismounting, from the second frame, a developing blade which is mounted on the second frame to regulate an amount of the developer deposited on the developing roller; (c) a thin plate sheet material mounting step of mounting a thin sheet material on such a side of a longitudinal seal for providing a seal extended between the first frame and the second frame in a longitudinal direction of the second frame as is opposite from a side mounted to the second frame; (d) a developer filling step of filling the developer into the developer accommodating portion; (e) a developing blade mounting step of mounting the developing blade in a facing orientation which is opposite from a facing orientation in which the developing blade has been
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: July 13, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Higeta, Satoshi Yasuda, Takayoshi Hoshi