Patents by Inventor Nobuyuki Ashida
Nobuyuki Ashida 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).
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Patent number: 11467117Abstract: There is provided an impedance sensor capable of counting the number of microscopic biological materials and specifying their properties stably with high sensitivity. An impedance sensor includes a measuring electrode pair formed at a wiring layer in a multilayer-wiring circuit board and one or more dielectrophoresis electrodes formed at another wiring layer lower than the wiring layer.Type: GrantFiled: June 4, 2018Date of Patent: October 11, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Nobuyuki Ashida
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Patent number: 11158658Abstract: [Object] To achieve a radiation detector capable of suppressing variation in the amount of radiation detected. [Solution] A first gate electrode (52) is connected to a light receiving device, and a second gate electrode (53) is configured to have the same potential as that of the first gate electrode (52).Type: GrantFiled: June 10, 2019Date of Patent: October 26, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiro Shiota, Shigenari Taguchi, Takahiro Shindoh, Kunihiko Iizuka, Nobuyuki Ashida
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Patent number: 10996198Abstract: An integrated circuit sensor that enables, regardless of a type of an inspection object, the inspection object and a front surface of the integrated circuit sensor to be in reliable contact with each other in a large region is provided. A through silicon via (11) that electrically connects an inside of an integrated circuit sensor (4) and an outside of the integrated circuit sensor (4) is formed in the inside of the integrated circuit sensor (4) so as to reach a rear surface of the integrated circuit sensor (4), which faces the front surface of the integrated circuit sensor (4).Type: GrantFiled: June 10, 2016Date of Patent: May 4, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Kunihiko Iizuka, Akira Saito, Takeshi Mitsunaka, Nobuyuki Ashida
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Patent number: 10886314Abstract: [Object] To achieve a high-sensitivity radiation detector. [Solution] An amplifying transistor (3) is configured such that a photodiode (1) receives light with the amplifying transistor (3) conductive.Type: GrantFiled: June 14, 2019Date of Patent: January 5, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiro Shiota, Shigenari Taguchi, Takahiro Shindoh, Kunihiko Iizuka, Nobuyuki Ashida
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Patent number: 10866332Abstract: An imaging system includes an input voltage setting unit that applies an input voltage to an Amp transistor, a setting output value acquisition unit that acquires a corresponding output for each pixel, and a calibration characteristic deriving unit that derives an input-output characteristic indicating a correspondence relationship between the input voltage and the output and derives a calibration characteristic to be used for calibration based on an inverse characteristic of the input-output characteristic.Type: GrantFiled: April 2, 2019Date of Patent: December 15, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Shigenari Taguchi, Seiichi Hama, Nobuyuki Ashida, Kunihiko Iizuka, Takahiro Shindoh, Isao Nakamura
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Patent number: 10718730Abstract: A change in an imaginary part of a complex dielectric constant of an inspection object containing moisture is detected as a change in an oscillation frequency. A sensor device includes an oscillation unit that is formed in a semiconductor integrated circuit and an oscillation frequency detection unit that detects an oscillation frequency of the oscillation unit. The oscillation unit has capacitors that are connected to an inspection object in series and changes the oscillation frequency in accordance with a complex dielectric constant of the inspection object.Type: GrantFiled: January 24, 2017Date of Patent: July 21, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Nobuyuki Ashida, Kunihiko Iizuka, Akira Saito, Takeshi Mitsunaka
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Publication number: 20200213552Abstract: [Object] To reduce 1/f noise by utilizing the functionality of controlling row selection, with which a typical solid-state imaging element is provided. [Solution] A solid-state imaging element (1A) includes a pixel array (A) in which a plurality of columns of pixels (P) are arranged, a row selection unit (13) that specifies a readout row of the pixel array (A), and a control device (30) that sweeps information carried by each pixel (P) a plurality of times by controlling the row selection unit (13) and outputs an output value in accordance with results of a plurality of readouts of the information obtained from each pixel (P) by the sweeping.Type: ApplicationFiled: December 23, 2019Publication date: July 2, 2020Inventors: NOBUYUKI ASHIDA, KUNIHIKO IIZUKA, SHIGENARI TAGUCHI, MASAHIRO SHIOTA
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Publication number: 20200166472Abstract: There is provided an impedance sensor capable of counting the number of microscopic biological materials and specifying their properties stably with high sensitivity. An impedance sensor includes a measuring electrode pair formed at a wiring layer in a multilayer-wiring circuit board and one or more dielectrophoresis electrodes formed at another wiring layer lower than the wiring layer.Type: ApplicationFiled: June 4, 2018Publication date: May 28, 2020Inventor: NOBUYUKI ASHIDA
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Patent number: 10578574Abstract: Provided is a technology for detecting a change in an inspection target containing moisture. A sensor circuit (1) for inspecting property of an inspection target includes an oscillator (20) having a resonance frequency of 30 to 200 GHz, and a detection circuit (3) that estimates an oscillation frequency of the oscillator.Type: GrantFiled: June 2, 2016Date of Patent: March 3, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Takeshi Mitsunaka, Akira Saito, Nobuyuki Ashida, Kunihiko Iizuka
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Patent number: 10571422Abstract: To detect changes in the physical properties of an examination object as changes in a plurality of different oscillation frequencies using signals with the oscillation frequencies, a sensor circuit includes: an oscillation circuit (1) with a first resonant frequency; an oscillation circuit (2) with a second resonant frequency different from the first resonant frequency; and a detection circuit (4) that detects oscillation frequencies of the oscillation circuit (1) and the oscillation circuit (2).Type: GrantFiled: September 21, 2016Date of Patent: February 25, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Takeshi Mitsunaka, Kunihiko Iizuka, Akira Saito, Nobuyuki Ashida
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Publication number: 20200014863Abstract: [Object] To realize an image capturing apparatus capable of suppressing noise in an image. [Solution] An image capturing apparatus (100) includes a plurality of pixels (110) arranged in a matrix form. Each pixel includes a switching element (112) configured to control outputting of a charge accumulated in a sensor element (111). Pixels in each column are grouped into blocks (120). Each block includes a block switching element (122) configured to control outputting.Type: ApplicationFiled: July 3, 2019Publication date: January 9, 2020Inventors: MASAHIRO SHIOTA, SHIGENARI TAGUCHI, KUNIHIKO IIZUKA, NOBUYUKI ASHIDA
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Publication number: 20190386045Abstract: [Object] To achieve a radiation detector capable of suppressing variation in the amount of radiation detected. [Solution] A first gate electrode (52) is connected to a light receiving device, and a second gate electrode (53) is configured to have the same potential as that of the first gate electrode (52).Type: ApplicationFiled: June 10, 2019Publication date: December 19, 2019Inventors: MASAHIRO SHIOTA, SHIGENARI TAGUCHI, TAKAHIRO SHINDOH, KUNIHIKO IIZUKA, NOBUYUKI ASHIDA
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Publication number: 20190386046Abstract: [Object] To achieve a high-sensitivity radiation detector. [Solution] An amplifying transistor (3) is configured such that a photodiode (1) receives light with the amplifying transistor (3) conductive.Type: ApplicationFiled: June 14, 2019Publication date: December 19, 2019Inventors: MASAHIRO SHIOTA, SHIGENARI TAGUCHI, TAKAHIRO SHINDOH, KUNIHIKO IIZUKA, NOBUYUKI ASHIDA
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Publication number: 20190324163Abstract: An imaging system includes an input voltage setting unit that applies an input voltage to an Amp transistor, a setting output value acquisition unit that acquires a corresponding output for each pixel, and a calibration characteristic deriving unit that derives an input-output characteristic indicating a correspondence relationship between the input voltage and the output and derives a calibration characteristic to be used for calibration based on an inverse characteristic of the input-output characteristic.Type: ApplicationFiled: April 2, 2019Publication date: October 24, 2019Inventors: SHIGENARI TAGUCHI, SEIICHI HAMA, NOBUYUKI ASHIDA, KUNIHIKO IIZUKA, TAKAHIRO SHINDOH, ISAO NAKAMURA
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Publication number: 20190041348Abstract: A change in an imaginary part of a complex dielectric constant of an inspection object containing moisture is detected as a change in an oscillation frequency. A sensor device includes an oscillation unit that is formed in a semiconductor integrated circuit and an oscillation frequency detection unit that detects an oscillation frequency of the oscillation unit. The oscillation unit has capacitors that are connected to an inspection object in series and changes the oscillation frequency in accordance with a complex dielectric constant of the inspection object.Type: ApplicationFiled: January 24, 2017Publication date: February 7, 2019Inventors: NOBUYUKI ASHIDA, KUNIHIKO IIZUKA, AKIRA SAITO, TAKESHI MITSUNAKA
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Publication number: 20190025235Abstract: Provided is a technology for detecting a change in an inspection target containing moisture. A sensor circuit (1) for inspecting property of an inspection target includes an oscillator (20) having a resonance frequency of 30 to 200 GHz, and a detection circuit (3) that estimates an oscillation frequency of the oscillator.Type: ApplicationFiled: June 2, 2016Publication date: January 24, 2019Inventors: TAKESHI MITSUNAKA, AKIRA SAITO, NOBUYUKI ASHIDA, KUNIHIKO IIZUKA
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Publication number: 20180356360Abstract: To detect changes in the physical properties of an examination object as changes in a plurality of different oscillation frequencies using signals with the oscillation frequencies, a sensor circuit includes: an oscillation circuit (1) with a first resonant frequency; an oscillation circuit (2) with a second resonant frequency different from the first resonant frequency; and a detection circuit (4) that detects oscillation frequencies of the oscillation circuit (1) and the oscillation circuit (2).Type: ApplicationFiled: September 21, 2016Publication date: December 13, 2018Inventors: TAKESHI MITSUNAKA, KUNIHIKO IIZUKA, AKIRA SAITO, NOBUYUKI ASHIDA
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Publication number: 20180209937Abstract: An integrated circuit sensor that enables, regardless of a type of an inspection object, the inspection object and a front surface of the integrated circuit sensor to be in reliable contact with each other in a large region is provided. A through silicon via (11) that electrically connects an inside of an integrated circuit sensor (4) and an outside of the integrated circuit sensor (4) is formed in the inside of the integrated circuit sensor (4) so as to reach a rear surface of the integrated circuit sensor (4), which faces the front surface of the integrated circuit sensor (4).Type: ApplicationFiled: June 10, 2016Publication date: July 26, 2018Inventors: KUNIHIKO IIZUKA, AKIRA SAITO, TAKESHI MITSUNAKA, NOBUYUKI ASHIDA
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Patent number: 7342987Abstract: The 90-degree phase shifter of the invention has: a T flip-flop including transistors Q3 to Q6 and Q9 to Q12 that together constitute a dual differential circuit, input transistors Q1 and Q2 that receive at their bases an input signal, and input transistors Q7 and Q8 that receive at their bases a signal complementary to the input signal; variable current sources 14 to 17 connected respectively to the nodes between the individual input transistors and the dual differential circuit; and a 90-degree phase comparator 10 that compares the phase differences between the signals outputted from the T flip-flop to output signals commensurate with the deviations of those phase differences from 90 degrees. The variable current sources 14 to 17 are controlled by signals based on the signals outputted from the 90-degree phase comparator 10. This configuration more surely yields output signals with a phase difference of exactly 90 degrees.Type: GrantFiled: December 9, 2004Date of Patent: March 11, 2008Assignee: Sharp Kabushiki KaishaInventor: Nobuyuki Ashida
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Publication number: 20080048695Abstract: According to an embodiment of a circuit substrate of the present invention, in a circuit substrate provided with a plurality of circuit blocks formed on a single substrate, at least one of the metal patterns connecting the circuit blocks is separated into two sections at some midpoint of wiring, and exposed conductor portions whose end portions are to be bridge-connected through soldering are provided at the end portions in the separated portion of the separated two wiring metal patterns.Type: ApplicationFiled: August 21, 2007Publication date: February 28, 2008Inventor: Nobuyuki ASHIDA