Patents by Inventor Shin Chiba

Shin Chiba 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: 20240179259
    Abstract: An information processing device includes: a distribution management unit that performs instruction processing pertaining to image distribution for image data captured at a specific event and transmitted to a server device; an event data management unit that performs processing for managing, in association with the image data, evaluation information for an image that is distributed; and a filter processing unit that performs filtering processing on the image data using the evaluation information as a filter condition.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 30, 2024
    Inventors: HARUKA KAWATA, AYAKO CHIBA, KANAKO YANA, CHIHIRO FUKIAGE, SHIGEO SUGIMORI, SHIN HASEGAWA, ERINA OHSUGI, KUMIKO MATSUNO
  • Publication number: 20240149380
    Abstract: Provided are a processing device, a detecting system, a processing method, a program, and a storage medium that obtain a position of a weld portion of a joined body with higher accuracy. A processing device according to an embodiment receives intensity data of a reflected wave obtained by transmitting an ultrasonic wave along a first direction toward a joined body. The device designates a weld portion of the joined body by using the intensity data. The device calculates a first center position of the weld portion in a first plane crossing the first direction.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Hiromasa TAKAHASHI, Yasunori CHIBA, Masahiro SAITO, Takuya ATSUMI, Shin MATSUMOTO
  • Publication number: 20240139815
    Abstract: An additive manufacturing development method includes predicting a defect that occurs in a product based on a combination of a plurality of design data and a plurality of manufacturing conditions, collecting defect detection data for defect detection by monitoring the product during manufacturing in accordance with the combination of the plurality of design data and the plurality of manufacturing conditions, and generating a process map in which the plurality of manufacturing conditions are plotted using the predicted defect and the collected defect detection data. The method further includes collecting defect repair data for defect repair by monitoring the product during manufacturing and repairing a defect detected from the product, and storing the defect and the defect repair data in association with each other using the defect repair data and a repair result.
    Type: Application
    Filed: February 26, 2021
    Publication date: May 2, 2024
    Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
    Inventors: Kenta AOYAGI, Akihiko CHIBA, Hideki KYOGOKU, Shin-ichi KITAMURA, Michiaki HASHITANI
  • Patent number: 9685865
    Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: June 20, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshio Nagasawa, Yoshitaka Onaya, Koji Saikusa, Shin Chiba
  • Publication number: 20150249387
    Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 3, 2015
    Inventors: Toshio NAGASAWA, Yoshitaka ONAYA, Koji SAIKUSA, Shin CHIBA
  • Patent number: 9054583
    Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 9, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Toshio Nagasawa, Yoshitaka Onaya, Koji Saikusa, Shin Chiba
  • Publication number: 20140191737
    Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.
    Type: Application
    Filed: December 4, 2013
    Publication date: July 10, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshio NAGASAWA, Yoshitaka ONAYA, Koji SAIKUSA, Shin CHIBA
  • Patent number: 8314606
    Abstract: A method can include obtaining a voltage across a first transistor as an obtained voltage. The method can also include multiplying the obtained voltage by a predetermined multiple M to yield a multiplied voltage. The method can further include applying the multiplied voltage to a second transistor, wherein the second transistor is N times smaller than the first transistor. The method can additionally include providing an output current of the second transistor as an M/N scaled estimate of an output current of the first transistor.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: November 20, 2012
    Assignee: Renesas Electronics America Inc.
    Inventors: Tetsuo Sato, Matsuura Nobuyoshi, Ryotaro Kudo, Hideo Ishii, Shin Chiba
  • Publication number: 20110115471
    Abstract: A method can include obtaining a voltage across a first transistor as an obtained voltage. The method can also include multiplying the obtained voltage by a predetermined multiple M to yield a multiplied voltage. The method can further include applying the multiplied voltage to a second transistor, wherein the second transistor is N times smaller than the first transistor. The method can additionally include providing an output current of the second transistor as an M/N scaled estimate of an output current of the first transistor.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 19, 2011
    Applicant: Renesas Technology America, Inc.
    Inventors: Tetsuo Sato, Matsuura Nobuyoshi, Ryotaro Kudo, Hideo Ishii, Shin Chiba
  • Publication number: 20090267587
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 29, 2009
    Applicant: RENEAS TECHNOLOGY CORP.
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Patent number: 7550959
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 23, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Publication number: 20080129273
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Application
    Filed: January 22, 2008
    Publication date: June 5, 2008
    Inventors: Koji TATENO, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Patent number: 7342391
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: March 11, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Publication number: 20070236204
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Application
    Filed: June 8, 2007
    Publication date: October 11, 2007
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Patent number: 7245116
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: July 17, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Publication number: 20050231177
    Abstract: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor and a current detection resistor are provided in parallel to the low-potential side power transistor. The same control voltage as the power transistor is applied to the control terminal of the current detection transistor. An operational amplifier is formed, that has the potential of the connection node between the current detection transistor and the current detection resistor applied to its inverse input terminal and a feedback loop, so as to make a pair of input terminals of the operational amplifier be at the same potential. A signal produced by the current detection resistor is thus outputted as a current detection signal.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 20, 2005
    Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
  • Patent number: 6559718
    Abstract: In order to decrease a change in the offset caused by high-frequency noise, filter circuits for cutting high-frequency noise are inserted between the input terminals of a differential amplifier circuit and input nodes of a differential amplifier stage, the filter circuits having a cut-off frequency which is higher than a cut-off frequency of the differential amplifier circuit but is lower than a cut-off frequency of a parasitic filter circuit constituted by a parasitic capacity and a parasitic resistance in the input unit.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: May 6, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Ryotaro Kudo, Shin Chiba, Jin Kiong Ang
  • Publication number: 20010015674
    Abstract: In order to decrease a change in the offset caused by high-frequency noise, filter circuits for cutting high-frequency noise are inserted between the input terminals of a differential amplifier circuit and input nodes of a differential amplifier stage, the filter circuits having a cut-off frequency which is higher than a cut-off frequency of the differential amplifier circuit but is lower than a cut-off frequency of a parasitic filter circuit constituted by a parasitic capacity and a parasitic resistance in the input unit.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 23, 2001
    Inventors: Ryotaro Kudo, Shin Chiba, Jin Kiong Ang