Patents by Inventor Masahiro Yasumi
Masahiro Yasumi 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: 11863156Abstract: A surface acoustic wave device comprises a substrate and an interdigital transducer (IDT) electrode disposed on the substrate. The IDT electrode includes a lower electrode layer having a lower surface in contact with an upper surface of the substrate and an upper electrode layer having a lower surface defining a base in contact with an upper surface of the lower electrode layer. Side surfaces of the lower electrode layer are substantially perpendicular to the upper surface of the substrate. Side surfaces of the upper electrode layer are disposed at an acute angle relative to the upper surface of the substrate.Type: GrantFiled: August 20, 2019Date of Patent: January 2, 2024Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
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Patent number: 10837936Abstract: An electrochemical measurement system includes an electrochemical measurement plate configured to have first and second biological samples placed thereon and an electrochemical measurement device connected to the electrochemical measurement plate. The electrochemical measurement plate includes a first well configured to have the first biological sample placed therein, a first measurement electrode group including first measurement electrodes provided within the first well, a second well configured to have the second biological sample placed therein, and a second measurement electrode group including second measurement electrodes provided within the second well.Type: GrantFiled: March 6, 2017Date of Patent: November 17, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kaoru Hiramoto, Masahiro Yasumi
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Patent number: 10619179Abstract: An electrochemical measuring method uses an electrochemical measuring device in which a measuring liquid is filled into a well. The electrochemical measuring method includes: a step of applying a measuring voltage to a working electrode and measuring a value of a first current flowing in the working electrode; a step of applying a non-measuring voltage to the working electrode; a step of introducing the biological sample into a container; and a step of applying the measuring voltage to the working electrode and measuring a value of a second current flowing in the working electrode.Type: GrantFiled: September 17, 2015Date of Patent: April 14, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kaoru Hiramoto, Masahiro Yasumi, Hiroshi Ushio, Atsushi Shunori
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Publication number: 20190379346Abstract: A surface acoustic wave device comprises a substrate and an interdigital transducer (IDT) electrode disposed on the substrate. The IDT electrode includes a lower electrode layer having a lower surface in contact with an upper surface of the substrate and an upper electrode layer having a lower surface defining a base in contact with an upper surface of the lower electrode layer. Side surfaces of the lower electrode layer are substantially perpendicular to the upper surface of the substrate. Side surfaces of the upper electrode layer are disposed at an acute angle relative to the upper surface of the substrate.Type: ApplicationFiled: August 20, 2019Publication date: December 12, 2019Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
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Patent number: 10457907Abstract: An electrochemical measurement device includes: a base; a specimen placement portion disposed on the base, for placing a biological specimen; a first electrode disposed on the base and surrounding the specimen placement portion; and a first insulating layer covering the first electrode. The first insulating layer has a plurality of openings, and the first electrode has a plurality of first electrode exposed portions which are portions of the first electrode that are exposed from the openings of the first insulating layer.Type: GrantFiled: September 27, 2016Date of Patent: October 29, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Atsushi Shunori, Masahiro Yasumi, Makoto Takahashi
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Patent number: 10458941Abstract: Provided is an electrochemical measurement device capable of measuring more accurately and an electrochemical measurement apparatus provided with the electrochemical measurement device. The electrochemical measurement device includes a base part, and a placement part on which an object to be measured is placed, the placement part being provided to the base part. The electrochemical measurement device also includes an electrode part provided near the placement part on the base part, a wiring part provided on a surface of the base part and electrically connected to the electrode part, and an insulator that covers the wiring part. Further, a protruding part is provided on the base part of the electrochemical measurement device so as to protrude past the insulator.Type: GrantFiled: May 26, 2017Date of Patent: October 29, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Jun Ogihara, Sumihiro Otsuka, Noriteru Furumoto, Masahiro Yasumi, Atsushi Shunori
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Patent number: 10439585Abstract: An acoustic wave device comprises an IDT electrode disposed above an upper surface of a piezoelectric substrate and includes a plurality of electrode fingers configured to excite a main acoustic wave. A first dielectric film made of an oxide is disposed above the upper surface of the piezoelectric substrate and covers the plurality of electrode fingers. A second dielectric film made of non-oxide is disposed between the first dielectric film and each of the plurality of electrode fingers. A third dielectric film is disposed between the piezoelectric substrate and the plurality of electrode fingers. A speed of a transverse wave propagating through the third dielectric film is greater than a speed of the main acoustic wave propagating through the piezoelectric substrate. The third dielectric film contacts the first dielectric film between adjacent electrode fingers of the plurality of electrode fingers.Type: GrantFiled: October 24, 2016Date of Patent: October 8, 2019Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
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Publication number: 20190277828Abstract: A state of a biological sample is measured by the following method. An electrochemical measuring device including a working electrode and filled with a measuring liquid contacting the working electrode is prepared. A biological sample is put into the measuring liquid. A measuring potential is applied to the working electrode to measure a current value flowing through the working electrode. An oxidation potential is applied to the working electrode to oxidize a surface of the working electrode. This method allows an ambient state of the biological sample to be measured stably.Type: ApplicationFiled: November 29, 2017Publication date: September 12, 2019Inventors: KAORU HIRAMOTO, HIROSHI USHIO, MASAHIRO YASUMI
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Patent number: 10241077Abstract: An electrochemical measurement device includes a chip, a working electrode, a first connection portion, a substrate, a second connection portion, a third connection portion, and an upper plate. The working electrode is disposed on the upper surface of the chip. The first connection portion is disposed on the upper surface of the chip, and is electrically connected to the working electrode. The second connection portion is disposed on the upper surface of the substrate. The third connection portion is disposed on the substrate, is electrically connected to the second connection portion, and is to be electrically connected to an external apparatus. The upper plate is disposed on the upper surfaces of the substrate and chip. The upper plate is provided with a first through hole through which the working electrode is exposed.Type: GrantFiled: November 28, 2016Date of Patent: March 26, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroshi Ushio, Masahiro Yasumi
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Publication number: 20180364190Abstract: An electrochemical measurement system includes an electrochemical measurement plate configured to have first and second biological samples placed thereon and an electrochemical measurement device connected to the electrochemical measurement plate. The electrochemical measurement plate includes a first well configured to have the first biological sample placed therein, a first measurement electrode group including first measurement electrodes provided within the first well, a second well configured to have the second biological sample placed therein, and a second measurement electrode group including second measurement electrodes provided within the second well.Type: ApplicationFiled: March 6, 2017Publication date: December 20, 2018Inventors: KAORU HIRAMOTO, MASAHIRO YASUMI
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Publication number: 20180223234Abstract: Electrochemical measurement device according to the present disclosure measures specimen injected into well. The electrochemical measurement device includes wall having an inner wall surface forming well, first working electrode disposed in well and surrounded by the wall, and leakage detecting electrode which detects a leakage of measuring liquid. The lower end of inner wall surface of wall is disposed between first working electrode and leakage detecting electrode viewing from above electrochemical measurement device.Type: ApplicationFiled: August 30, 2016Publication date: August 9, 2018Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: ATSUSHI SHUNORI, MASAHIRO YASUMI
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Publication number: 20180209936Abstract: An electrochemical measurement device is configured to measure an activity of a biological sample with a measuring liquid having conductivity. The device includes a plate having first and second wells provided therein, a measuring electrode disposed inside the first well, and a first placement portion provided configured to have the biological sample placed thereon. The first and second wells are provided in an upper surface at positions different from each other. The plate includes a wall separating a bottom surface of the first well from a bottom surface of the second well. The measuring electrode is provided on the bottom surface of the first well around the first placement portion. The second well is configured to have a counter electrode disposed therein. The first and second wells are configured to contain the measuring liquid therein. A portion of the measuring liquid contained in the first well is electrically connected to a portion of the measuring liquid contained in the second well.Type: ApplicationFiled: October 19, 2016Publication date: July 26, 2018Inventors: HIROSHI USHIO, MASAHIRO YASUMI
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Publication number: 20170261460Abstract: Provided is an electrochemical measurement device capable of measuring more accurately and an electrochemical measurement apparatus provided with the electrochemical measurement device. The electrochemical measurement device includes a base part, and a placement part on which an object to be measured is placed, the placement part being provided to the base part. The electrochemical measurement device also includes an electrode part provided near the placement part on the base part, a wiring part provided on a surface of the base part and electrically connected to the electrode part, and an insulator that covers the wiring part. Further, a protruding part is provided on the base part of the electrochemical measurement device so as to protrude past the insulator.Type: ApplicationFiled: May 26, 2017Publication date: September 14, 2017Inventors: JUN OGIHARA, SUMIHIRO OTSUKA, NORITERU FURUMOTO, MASAHIRO YASUMI, ATSUSHI SHUNORI
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Publication number: 20170218423Abstract: An electrochemical measuring method uses an electrochemical measuring device in which a measuring liquid is filled into a well. The electrochemical measuring method includes: a step of applying a measuring voltage to a working electrode and measuring a value of a first current flowing in the working electrode; a step of applying a non-measuring voltage to the working electrode; a step of introducing the biological sample into a container; and a step of applying the measuring voltage to the working electrode and measuring a value of a second current flowing in the working electrode.Type: ApplicationFiled: September 17, 2015Publication date: August 3, 2017Inventors: KAORU HIRAMOTO, MASAHIRO YASUMI, HIROSHI USHIO, ATSUSHI SHUNORI
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Publication number: 20170074821Abstract: An electrochemical measurement device includes a chip, a working electrode, a first connection portion, a substrate, a second connection portion, a third connection portion, and an upper plate. The working electrode is disposed on the upper surface of the chip. The first connection portion is disposed on the upper surface of the chip, and is electrically connected to the working electrode. The second connection portion is disposed on the upper surface of the substrate. The third connection portion is disposed on the substrate, is electrically connected to the second connection portion, and is to be electrically connected to an external apparatus. The upper plate is disposed on the upper surfaces of the substrate and chip. The upper plate is provided with a first through hole through which the working electrode is exposed.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventors: HIROSHI USHIO, MASAHIRO YASUMI
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Publication number: 20170040969Abstract: An acoustic wave device comprises an IDT electrode disposed above an upper surface of a piezoelectric substrate and includes a plurality of electrode fingers configured to excite a main acoustic wave. A first dielectric film made of an oxide is disposed above the upper surface of the piezoelectric substrate and covers the plurality of electrode fingers. A second dielectric film made of non-oxide is disposed between the first dielectric film and each of the plurality of electrode fingers. A third dielectric film is disposed between the piezoelectric substrate and the plurality of electrode fingers. A speed of a transverse wave propagating through the third dielectric film is greater than a speed of the main acoustic wave propagating through the piezoelectric substrate. The third dielectric film contacts the first dielectric film between adjacent electrode fingers of the plurality of electrode fingers.Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
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Publication number: 20170015971Abstract: An electrochemical measurement device includes: a base; a specimen placement portion disposed on the base, for placing a biological specimen; a first electrode disposed on the base and surrounding the specimen placement portion; and a first insulating layer covering the first electrode. The first insulating layer has a plurality of openings, and the first electrode has a plurality of first electrode exposed portions which are portions of the first electrode that are exposed from the openings of the first insulating layer.Type: ApplicationFiled: September 27, 2016Publication date: January 19, 2017Inventors: Atsushi SHUNORI, Masahiro YASUMI, Makoto TAKAHASHI
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Patent number: 9496846Abstract: An acoustic wave device includes a piezoelectric substrate, an IDT electrode including plural electrode fingers disposed above an upper surface of the piezoelectric substrate, a first dielectric film made of oxide disposed above the upper surface of the substrate for covering the electrode fingers, and a second dielectric film made of non-oxide disposed on upper surfaces of the electrode fingers and between the first dielectric film and each of the electrode fingers. The first dielectric film contacts the upper surface of the piezoelectric substrate at a position between electrode fingers out of the plural electrode fingers adjacent to each other. The acoustic wave device prevents the electrode fingers of the IDT electrode from corrosion.Type: GrantFiled: February 10, 2014Date of Patent: November 15, 2016Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
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Patent number: 9035725Abstract: An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the piezoelectric substrate, a first dielectric film covering the upper surface of the piezoelectric substrate to cover the IDT electrode, and a second dielectric film covering an upper surface of the first dielectric film. The second dielectric film includes a thin portion positioned in a tip region of electrode fingers of the IDT electrode and a thick portion which is positioned in a middle region of the IDT electrode and is thicker than the thin portion. The acoustic wave device suppresses spurious emission and has superior passband characteristics.Type: GrantFiled: February 19, 2014Date of Patent: May 19, 2015Assignee: PANASONIC CORPORATIONInventors: Tomoya Komatsu, Tomohiro Iwasaki, Hiroyuki Nakamura, Masahiro Yasumi, Kazunori Nishimura
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Publication number: 20140285287Abstract: An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the piezoelectric substrate, a first dielectric film covering the upper surface of the piezoelectric substrate to cover the IDT electrode, and a second dielectric film covering an upper surface of the first dielectric film. The second dielectric film includes a thin portion positioned in a tip region of electrode fingers of the IDT electrode and a thick portion which is positioned in a middle region of the IDT electrode and is thicker than the thin portion. The acoustic wave device suppresses spurious emission and has superior passband characteristics.Type: ApplicationFiled: February 19, 2014Publication date: September 25, 2014Applicant: Panasonic CorporationInventors: TOMOYA KOMATSU, TOMOHIRO IWASAKI, HIROYUKI NAKAMURA, MASAHIRO YASUMI, KAZUNORI NISHIMURA