Patents by Inventor Masanori Katou
Masanori Katou 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: 9506892Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.Type: GrantFiled: June 12, 2014Date of Patent: November 29, 2016Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Publication number: 20150179963Abstract: An organic electroluminescent device of the present invention comprising comprises, as stacked on a baseplate, at least, a first conductive layer, a charge injection and transport layer, a light-emitting layer, and a second conductive layer, wherein (1) the charge injection and transport layer includes a charge injection layer in contact with the first conductive layer, (2) the charge injection and transport layer has a thickness ranging from 130 to 1000 nm, (3) the charge injection layer contains a crosslinked aromatic amine polymer, and the baseplate is a glass baseplate, and the minimum value of a waviness tangent for the surface of the glass baseplate towards the first conductive layer is equal to or more than 4.00×10?6, or a maximum value of the waviness tangent is equal to or more than 22×10?6.Type: ApplicationFiled: March 3, 2015Publication date: June 25, 2015Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Yoshimasa BANDO, Masanori Katou, Shigeki Nagao, Tomoyuki Ogata
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Publication number: 20150102283Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.Type: ApplicationFiled: June 12, 2014Publication date: April 16, 2015Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Patent number: 8772099Abstract: A method of detecting a detection target using a sensor requires a sensor having a transistor selected from the group of field-effect transistors or single electron transistors. The transistor includes a substrate, a source electrode disposed on the substrate and a drain electrode disposed on the substrate, and a channel forming a current path between the source electrode and the drawing electrode; an interaction-sensing gate comprising a specific substance; and a voltage gate. The method includes (a) providing the detection target on the interaction-sensing gate; (b) setting the gate voltage in the voltage gate at a predetermined level; (c) selectively interacting the specific substance with the detection target; (d) when the detection target interacts with the specific substance, changing a gate voltage in the voltage gate to adjust a characteristic of the transistor; and (e) measuring a change in the characteristic of the transistor to determine a presence of the detection target.Type: GrantFiled: July 24, 2012Date of Patent: July 8, 2014Assignee: Japan Science and Technology AgencyInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Patent number: 8766326Abstract: A field-effect transistor or a single electron transistor is used as sensors for detecting a detection target such as a biological compound. A substrate has a first side and a second side, the second side being opposed to the first side. A source electrode is disposed on the first side of the substrate and a drain electrode disposed on the first side of the substrate, and a channel forms a current path between the source electrode and the drain electrode. An interaction-sensing gate is disposed on the second side of the substrate, the interaction-sensing gate having a specific substance that is capable of selectively interacting with the detection target. A gate for applying a gate voltage adjusts a characteristic of the transistor as the detection target changes the characteristic of the transistor when interacting with the specific substance.Type: GrantFiled: July 24, 2012Date of Patent: July 1, 2014Assignee: Japan Science and Technology AgencyInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Patent number: 8502277Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.Type: GrantFiled: August 27, 2004Date of Patent: August 6, 2013Assignee: Japan Science and Technology AgencyInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Patent number: 8489394Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: GrantFiled: June 25, 2012Date of Patent: July 16, 2013Assignee: NEC CorporationInventors: Akihiko Sugiyama, Masanori Katou
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Patent number: 8477963Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: GrantFiled: June 25, 2012Date of Patent: July 2, 2013Assignee: NEC CorporationInventors: Akihiko Sugiyama, Masanori Katou
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Publication number: 20120290296Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: ApplicationFiled: June 25, 2012Publication date: November 15, 2012Applicant: NEC CORPORATIONInventors: Akihiko Sugiyama, Masanori Katou
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Publication number: 20120286763Abstract: A method of detecting a detection target using a sensor requires a sensor having a transistor selected from the group of field-effect transistors or single electron transistors. The transistor includes a substrate, a source electrode disposed on the substrate and a drain electrode disposed on the substrate, and a channel forming a current path between the source electrode and the drawing electrode; an interaction-sensing gate comprising a specific substance; and a voltage gate. The method includes (a) providing the detection target on the interaction-sensing gate; (b) setting the gate voltage in the voltage gate at a predetermined level; (c) selectively interacting the specific substance with the detection target; (d) when the detection target interacts with the specific substance, changing a gate voltage in the voltage gate to adjust a characteristic of the transistor; and (e) measuring a change in the characteristic of the transistor to determine a presence of the detection target.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kazuhiko MATSUMOTO, Atsuhiko KOJIMA, Satoru NAGAO, Masanori KATOU, Yutaka YAMADA, Kazuhiro NAGAIKE, Yasuo IFUKU, Hiroshi MITANI
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Publication number: 20120288115Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: ApplicationFiled: June 25, 2012Publication date: November 15, 2012Applicant: NEC CORPORATIONInventors: Akihiko Sugiyama, Masanori Katou
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Publication number: 20120286243Abstract: A field-effect transistor or a single electron transistor is used as sensors for detecting a detection target such as a biological compound. A substrate has a first side and a second side, the second side being opposed to the first side. A source electrode is disposed on the first side of the substrate and a drain electrode disposed on the first side of the substrate, and a channel forms a current path between the source electrode and the drain electrode. An interaction-sensing gate is disposed on the second side of the substrate, the interaction-sensing gate having a specific substance that is capable of selectively interacting with the detection target. A gate for applying a gate voltage adjusts a characteristic of the transistor as the detection target changes the characteristic of the transistor when interacting with the specific substance.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Patent number: 8233636Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: GrantFiled: August 28, 2006Date of Patent: July 31, 2012Assignee: NEC CorporationInventors: Akihiko Sugiyama, Masanori Katou
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Publication number: 20090196434Abstract: A method, an apparatus, and a computer program, which can suppress a low frequency range component with a small amount of calculation, and can achieve a noise suppression of high quality, are provided. The noise superposed in a desired signal of an input signal is suppressed by converting the input signal to a frequency domain signal; correcting an amplitude of the frequency domain signal to obtain an amplitude corrected signal; obtaining an estimated noise by using the amplitude corrected signal; determining a suppression coefficient by using the estimated noise and the amplitude corrected signal; and weighting the amplitude corrected signal with the suppression coefficient.Type: ApplicationFiled: August 28, 2006Publication date: August 6, 2009Applicant: NEC CorporationInventors: Akihiko Sugiyama, Masanori Katou
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Publication number: 20070063304Abstract: A sensor capable of detecting detection targets that are necessary to be detected with high sensitivity is provided. It comprises a field-effect transistor 1A having a substrate 2, a source electrode 4 and a drain electrode 5 provided on said substrate 2, and a channel 6 forming a current path between said source electrode 4 and said drain electrode 5; wherein said field-effect transistor 1A comprises: an interaction-sensing gate 9 for immobilizing thereon a specific substance 10 that is capable of selectively interacting with the detection targets; and a gate 7 applied a voltage thereto so as to detect the interaction by the change of the characteristic of said field-effect transistor 1A.Type: ApplicationFiled: August 27, 2004Publication date: March 22, 2007Inventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
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Publication number: 20060271362Abstract: In a noise suppression apparatus for suppressing noise contained in a speech signal, the speech signal is converted to a first vector of spectral speech components and a second vector of spectral speech components identical to the first vector. A vector of noise suppression coefficients is determined based on the first vector spectral speech components. A vector of estimated noise components is determined based on the first vector spectral speech components, and a speech section correction factor and a nonspeech section correction factor are calculated from the estimated noise components and the first-vector spectral speech components to produce a combined correction factor. The noise suppression coefficients are weighted by the combined correction factor to produce a vector of post-suppression coefficients. The second vector spectral speech components are weighted by the post-suppression coefficients to produce a vector of enhanced speech components.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Inventors: Masanori Katou, Akihiko Sugiyama
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Patent number: 7023172Abstract: An electric motor control apparatus of this invention estimates changes in temperature of a semiconductor device to compute temperature change amplitude 108 based on an output current signal 105 computed from a current flowing through the semiconductor device of a switching circuit 5, an operating frequency signal and a carrier frequency signal by a temperature change estimation part 11, and makes conversion into the number of power cycles 110 corresponding to the temperature change amplitude 108 from power cycle curve data stored in a power cycle curve data storage part 14 and computes a thermal stress signal 111 by a thermal stress computation part 13, and does life estimation of the semiconductor device based on the thermal stress signal 111 and produces an output to a display part 16 as a life estimation result signal 112 by a life estimation part 15a.Type: GrantFiled: March 12, 2003Date of Patent: April 4, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Masanori Katou
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Publication number: 20050071090Abstract: An electric motor control apparatus of this invention estimates changes in temperature of a semiconductor device to compute temperature change amplitude 108 based on an output current signal 105 computed from a current flowing through the semiconductor device of a switching circuit 5, an operating frequency signal and a carrier frequency signal by a temperature change estimation part 11, and makes conversion into the number of power cycles 110 corresponding to the temperature change amplitude 108 from power cycle curve data stored in a power cycle curve data storage part 14 and computes a thermal stress signal 111 by a thermal stress computation part 13, and does life estimation of the semiconductor device based on the thermal stress signal 111 and produces an output to a display part 16 as a life estimation result signal 112 by a life estimation part 15a.Type: ApplicationFiled: March 12, 2003Publication date: March 31, 2005Inventor: Masanori Katou
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Patent number: 4805733Abstract: An active silencer provided in a pipe which has one end reaching the noise source and the other end open, the active silencer being provided with a sound generating means which is provided at the sidewall of the pipe facing inside the pipe, a sound collecting means which is provided outside the pipe close to the other end and which detects noise dissipated from the pipe opening, a phase leading means which outputs a lead phase output signal which is advanced from the phase of an output signal of the sound collecting means by a phase corresponding to a predetermined time determined by the distance between the sound generating means and the sound collecting means; and a drive means which outputs a signal constituting the lead phase output signla inverted in phase as a drive signal for the sound generating means, the predetermined time .tau. being set so that .tau.=L/C, wherein the distance between the sound generating means and the sound collecting means is L and the speed of sound is C.Type: GrantFiled: July 7, 1987Date of Patent: February 21, 1989Assignees: Nippondenso Co., Ltd., Nippon Soken, Inc.Inventors: Masahiko Kato, Masanori Katou, Satosi Kuwakado, Katsuyuki Tanaka, Koji Ito