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: 20240179259Abstract: 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: ApplicationFiled: February 4, 2022Publication date: May 30, 2024Inventors: HARUKA KAWATA, AYAKO CHIBA, KANAKO YANA, CHIHIRO FUKIAGE, SHIGEO SUGIMORI, SHIN HASEGAWA, ERINA OHSUGI, KUMIKO MATSUNO
-
Publication number: 20240149380Abstract: 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: ApplicationFiled: January 17, 2024Publication date: May 9, 2024Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATIONInventors: Hiromasa TAKAHASHI, Yasunori CHIBA, Masahiro SAITO, Takuya ATSUMI, Shin MATSUMOTO
-
Publication number: 20240139815Abstract: 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: ApplicationFiled: February 26, 2021Publication date: May 2, 2024Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Kenta AOYAGI, Akihiko CHIBA, Hideki KYOGOKU, Shin-ichi KITAMURA, Michiaki HASHITANI
-
Patent number: 9685865Abstract: 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: GrantFiled: May 14, 2015Date of Patent: June 20, 2017Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Toshio Nagasawa, Yoshitaka Onaya, Koji Saikusa, Shin Chiba
-
Publication number: 20150249387Abstract: 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: ApplicationFiled: May 14, 2015Publication date: September 3, 2015Inventors: Toshio NAGASAWA, Yoshitaka ONAYA, Koji SAIKUSA, Shin CHIBA
-
Patent number: 9054583Abstract: 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: GrantFiled: December 4, 2013Date of Patent: June 9, 2015Assignee: Renesas Electronics CorporationInventors: Toshio Nagasawa, Yoshitaka Onaya, Koji Saikusa, Shin Chiba
-
Publication number: 20140191737Abstract: 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: ApplicationFiled: December 4, 2013Publication date: July 10, 2014Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Toshio NAGASAWA, Yoshitaka ONAYA, Koji SAIKUSA, Shin CHIBA
-
Patent number: 8314606Abstract: 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: GrantFiled: November 17, 2009Date of Patent: November 20, 2012Assignee: Renesas Electronics America Inc.Inventors: Tetsuo Sato, Matsuura Nobuyoshi, Ryotaro Kudo, Hideo Ishii, Shin Chiba
-
Publication number: 20110115471Abstract: 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: ApplicationFiled: November 17, 2009Publication date: May 19, 2011Applicant: Renesas Technology America, Inc.Inventors: Tetsuo Sato, Matsuura Nobuyoshi, Ryotaro Kudo, Hideo Ishii, Shin Chiba
-
Publication number: 20090267587Abstract: 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: ApplicationFiled: June 18, 2009Publication date: October 29, 2009Applicant: RENEAS TECHNOLOGY CORP.Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Patent number: 7550959Abstract: 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: GrantFiled: January 22, 2008Date of Patent: June 23, 2009Assignee: Renesas Technology Corp.Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Publication number: 20080129273Abstract: 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: ApplicationFiled: January 22, 2008Publication date: June 5, 2008Inventors: Koji TATENO, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Patent number: 7342391Abstract: 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: GrantFiled: June 8, 2007Date of Patent: March 11, 2008Assignee: Renesas Technology Corp.Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Publication number: 20070236204Abstract: 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: ApplicationFiled: June 8, 2007Publication date: October 11, 2007Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Patent number: 7245116Abstract: 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: GrantFiled: April 7, 2005Date of Patent: July 17, 2007Assignee: Renesas Technology Corp.Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Publication number: 20050231177Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 20, 2005Inventors: Koji Tateno, Ryotaro Kudo, Shin Chiba, Kyoichi Hosokawa, Toshio Nagasawa
-
Patent number: 6559718Abstract: 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: GrantFiled: February 14, 2001Date of Patent: May 6, 2003Assignee: Hitachi, Ltd.Inventors: Ryotaro Kudo, Shin Chiba, Jin Kiong Ang
-
Publication number: 20010015674Abstract: 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: ApplicationFiled: February 14, 2001Publication date: August 23, 2001Inventors: Ryotaro Kudo, Shin Chiba, Jin Kiong Ang