Patents by Inventor Katsuki ONISHI
Katsuki ONISHI 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: 11723279Abstract: The present invention provides: a piezoelectric substrate which includes a first piezoelectric body having an elongated shape and helically wound in one direction, and which does not include a core material, in which the first piezoelectric body includes a helical chiral polymer (A) having an optical activity; in which the length direction of the first piezoelectric body is substantially parallel to the main direction of orientation of the helical chiral polymer (A) included in the first piezoelectric body; and in which the first piezoelectric body has a degree of orientation F, as measured by X-ray diffraction according to the following Equation (a), within the range of 0.5 or more but less than 1.0: degree of orientation F=(180°??)/180°??(a) (in which ? represents the half-value width of the peak derived from the orientation).Type: GrantFiled: June 5, 2017Date of Patent: August 8, 2023Assignees: MITSUI CHEMICALS, INC., MURATA MANUFACTURING CO., LTD.Inventors: Mitsunobu Yoshida, Kazuhiro Tanimoto, Katsuki Onishi, Shigeo Nishikawa, Masamichi Ando
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Patent number: 11402282Abstract: Provided is a piezoelectric substrate including: an elongate conductor; and an elongate first piezoelectric material helically wound in one direction around the conductor, in which the first piezoelectric material includes an optically active helical chiral polymer (A), the lengthwise direction of the first piezoelectric material and the principal orientation direction of the helical chiral polymer (A) included in the first piezoelectric material are substantially parallel to each other, and the first piezoelectric material has an orientation degree of F. in a range of from 0.5 to less than 1.0, determined from X-ray diffraction measurement by the following Formula (a): orientation degree F.=(180°??)/180°??(a) (in Formula (a), ? represents a half width of a peak derived from orientation).Type: GrantFiled: December 22, 2016Date of Patent: August 2, 2022Assignee: MITSUI CHEMICALS, INC.Inventors: Mitsunobu Yoshida, Kazuhiro Tanimoto, Katsuki Onishi, Shigeo Nishikawa
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Patent number: 11371896Abstract: A sensor module includes a holding member formed of an elastic body, a pressure bearing face provided at the holding member and configured to bear pressure, an adjoining face provided at the holding member so as to adjoin the pressure bearing face and configured to undergo deformation in accordance with the pressure borne by the pressure bearing face, and an elongate piezoelectric substrate arranged on the adjoining face.Type: GrantFiled: August 3, 2018Date of Patent: June 28, 2022Assignee: MITSUI CHEMICALS, INC.Inventors: Katsuki Onishi, Kazuhiro Tanimoto, Mitsunobu Yoshida
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Patent number: 11367827Abstract: A piezoelectric substrate, comprising: a conductor cord that has a core material and a conductor disposed around the core material; and an elongated piezoelectric body that is disposed around the conductor cord in a spiral manner, unidirectionally along an axial direction of the conductor cord, wherein: the piezoelectric body comprises an optically active helical chiral polymer, a lengthwise direction of the piezoelectric body and a main orientation direction of the helical chiral polymer in the piezoelectric body are substantially parallel to each other, the piezoelectric body has an orientation degree F. of from 0.5 to less than 1.0, and the conductor cord satisfies Formula (b): ?Dmax<tpmin, wherein ?Dmax is a maximum value of a difference in height between a division A that is selected from plural divisions and a division B that is adjacent to the division A, and tpmin is a minimum thickness of the piezoelectric body.Type: GrantFiled: April 20, 2018Date of Patent: June 21, 2022Assignee: MITSUI CHEMICALS, INC.Inventors: Mitsunobu Yoshida, Katsuki Onishi, Kazuhiro Tanimoto
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Patent number: 11171282Abstract: Provided is: an elongated plate-form piezoelectric body, which contains an optically active helical chiral polymer (A) having a weight-average molecular weight of from 50,000 to 1,000,000 and has an elongated plate shape having a thickness of from 0.001 mm to 0.2 mm, a width of from 0.1 mm to 30 mm and a width-to-thickness ratio of 2 or higher, and in which the lengthwise direction and the main orientation direction of the helical chiral polymer (A) are substantially parallel to each other; the crystallinity measured by a DSC method is from 20% to 80%; and the birefringence is from 0.01 to 0.03.Type: GrantFiled: September 5, 2016Date of Patent: November 9, 2021Inventors: Kazuhiro Tanimoto, Katsuki Onishi, Yuzo Nakamura
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Publication number: 20210338111Abstract: A human body detection device including line-shaped piezoelectric substrates respectively provided in each of a plurality of regions in a plate material intersecting a direction of pressure received from a human body, and provided such that an axial direction of each of the piezoelectric substrates runs along the plate material so as to detect pressure applied in a radial direction of the piezoelectric substrate, memory, and a processor coupled to the memory. The processor is configured to be capable of detecting an output signal from each of the piezoelectric substrates.Type: ApplicationFiled: September 10, 2019Publication date: November 4, 2021Applicant: MITSUI CHEMICALS, INC.Inventor: Katsuki ONISHI
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Patent number: 11101427Abstract: Provided is a piezoelectric substrate, containing an elongate piezoelectric body that is helically wound, in which the piezoelectric body includes an optically active polypeptide, a length direction of the piezoelectric body and a main orientation direction of the optically active polypeptide included in the piezoelectric body are substantially parallel to each other, and the piezoelectric body has a degree of orientation F of from 0.50 to less than 1.00, as determined from X-ray diffraction measurement by the following Formula (a): Degree of orientation F=(180°??)/180°??(a) in Formula (a), ? represents a half width (°) of a peak derived from orientation.Type: GrantFiled: November 17, 2017Date of Patent: August 24, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Kazuhiro Tanimoto, Mitsunobu Yoshida, Katsuki Onishi
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Publication number: 20210119106Abstract: A piezoelectric substrate, comprising: a conductor cord that has a core material and a conductor disposed around the core material; and an elongated piezoelectric body that is disposed around the conductor cord in a spiral manner, unidirectionally along an axial direction of the conductor cord, wherein: the piezoelectric body comprises an optically active helical chiral polymer, a lengthwise direction of the piezoelectric body and a main orientation direction of the helical chiral polymer in the piezoelectric body are substantially parallel to each other, the piezoelectric body has an orientation degree F. of from 0.5 to less than 1.0, and the conductor cord satisfies Formula (b): ?Dmax<tpmin, wherein ?Dmax is a maximum value of a difference in height between a division A that is selected from plural divisions and a division B that is adjacent to the division A, and tpmin is a minimum thickness of the piezoelectric body.Type: ApplicationFiled: April 20, 2018Publication date: April 22, 2021Applicant: Mitsui Chemicals, Inc.Inventors: Mitsunobu YOSHIDA, Katsuki ONISHI, Kazuhiro TANIMOTO
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Publication number: 20200378846Abstract: A sensor module includes a holding member formed of an elastic body, a pressure bearing face provided at the holding member and configured to bear pressure, an adjoining face provided at the holding member so as to adjoin the pressure bearing face and configured to undergo deformation in accordance with the pressure borne by the pressure bearing face, and an elongate piezoelectric substrate arranged on the adjoining face.Type: ApplicationFiled: August 3, 2018Publication date: December 3, 2020Applicant: Mitsui Chemicals, Inc.Inventors: Katsuki ONISHI, Kazuhiro TANIMOTO, Mitsunobu YOSHIDA
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Patent number: 10669397Abstract: A polymeric piezoelectric film, including a helical chiral polymer (A) having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, in which, in the film: a crystallinity given by a DSC method is from 20% to 80%; a standardized molecular orientation MORc is from 3.5 to 15.0 when a reference thickness measured by a microwave transmission-type molecular orientation meter is 50 ?m; and when a direction parallel to a phase difference streak is a direction X, a direction perpendicular to the direction X and parallel to a main plane of a film is a direction Y, and the phase difference streak is evaluated by an evaluation method A, per a length of 1,000 mm in the direction Y, a number of phase difference streaks with an evaluation value of 60 or more is 0, and a sum of the evaluation values of phase difference streaks with an evaluation value of 20 or more is 1000 or less.Type: GrantFiled: January 28, 2016Date of Patent: June 2, 2020Assignee: MITSUI CHEMICALS, INC.Inventors: Keisuke Sato, Katsuki Onishi, Hiroaki Tsushima, Kazuhiro Tanimoto, Toshihisa Kitagawa
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Publication number: 20200058844Abstract: Provided is a piezoelectric substrate, containing an elongate piezoelectric body that is helically wound, in which the piezoelectric body includes an optically active polypeptide, a length direction of the piezoelectric body and a main orientation direction of the optically active polypeptide included in the piezoelectric body are substantially parallel to each other, and the piezoelectric body has a degree of orientation F of from 0.50 to less than 1.00, as determined from X-ray diffraction measurement by the following Formula (a): Degree of orientation F=(180°??)/180°??(a) in Formula (a), ? represents a half width (°) of a peak derived from orientation.Type: ApplicationFiled: November 17, 2017Publication date: February 20, 2020Applicant: Mitsui Chemicals, Inc.Inventors: Kazuhiro TANIMOTO, Mitsunobu YOSHIDA, Katsuki ONISHI
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Publication number: 20190267538Abstract: The present invention provides: a piezoelectric substrate which includes a first piezoelectric body having an elongated shape and helically wound in one direction, and which does not include a core material, in which the first piezoelectric body includes a helical chiral polymer (A) having an optical activity; in which the length direction of the first piezoelectric body is substantially parallel to the main direction of orientation of the helical chiral polymer (A) included in the first piezoelectric body; and in which the first piezoelectric body has a degree of orientation F, as measured by X-ray diffraction according to the following Equation (a), within the range of 0.5 or more but less than 1.0: degree of orientation F=(180°??)/180°??(a) (in which ? represents the half-value width of the peak derived from the orientation).Type: ApplicationFiled: June 5, 2017Publication date: August 29, 2019Applicants: MITSUI CHEMICALS, INC., MURATA MANUFACTURING CO., LTD.Inventors: Mitsunobu YOSHIDA, Kazuhiro TANIMOTO, Katsuki ONISHI, Shigeo NISHIKAWA, Masamichi ANDO
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Publication number: 20190003905Abstract: Provided is a piezoelectric substrate including: an elongate conductor; and an elongate first piezoelectric material helically wound in one direction around the conductor, in which the first piezoelectric material includes an optically active helical chiral polymer (A), the lengthwise direction of the first piezoelectric material and the principal orientation direction of the helical chiral polymer (A) included in the first piezoelectric material are substantially parallel to each other, and the first piezoelectric material has an orientation degree of F in a range of from 0.5 to less than 1.0, determined from X-ray diffraction measurement by the following Formula (a): orientation degree F.=(180°??)/180°??(a) (in Formula (a), ? represents a half width of a peak derived from orientation).Type: ApplicationFiled: December 22, 2016Publication date: January 3, 2019Applicant: Mitsui Chemicals, Inc.Inventors: Mitsunobu YOSHIDA, Kazuhiro TANIMOTO, Katsuki ONISHI, Shigeo NISHIKAWA
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Publication number: 20180315917Abstract: Provided is: an elongated plate-form piezoelectric body, which contains an optically active helical chiral polymer (A) having a weight-average molecular weight of from 50,000 to 1,000,000 and has an elongated plate shape having a thickness of from 0.001 mm to 0.2 mm, a width of from 0.1 mm to 30 mm and a width-to-thickness ratio of 2 or higher, and in which the lengthwise direction and the main orientation direction of the helical chiral polymer (A) are substantially parallel to each other; the crystallinity measured by a DSC method is from 20% to 80%; and the birefringence is from 0.01 to 0.03.Type: ApplicationFiled: September 5, 2016Publication date: November 1, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Kazuhiro TANIMOTO, Katsuki ONISHI, Yuzo NAKAMURA
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Publication number: 20180022895Abstract: A polymeric piezoelectric film, including a helical chiral polymer (A) having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, in which, in the film: a crystallinity given by a DSC method is from 20% to 80%; a standardized molecular orientation MORc is from 3.5 to 15.0 when a reference thickness measured by a microwave transmission-type molecular orientation meter is 50 ?m; and when a direction parallel to a phase difference streak is a direction X, a direction perpendicular to the direction X and parallel to a main plane of a film is a direction Y, and the phase difference streak is evaluated by an evaluation method A, per a length of 1,000 mm in the direction Y, a number of phase difference streaks with an evaluation value of 60 or more is 0, and a sum of the evaluation values of phase difference streaks with an evaluation value of 20 or more is 1000 or less.Type: ApplicationFiled: January 28, 2016Publication date: January 25, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Keisuke SATO, Katsuki ONISHI, Hiroaki TSUSHIMA, Kazuhiro TANIMOTO, Toshihisa KITAGAWA
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Publication number: 20170317268Abstract: A polymeric piezoelectric film including an optically active helical chiral polymer (A) having a weight average molecular weight of from 50,000 to 1,000,000, wherein: a crystallinity obtained by a DSC method is from 20% to 80%; a standardized molecular orientation MORc measured by a microwave transmission-type molecular orientation meter based on a reference thickness of 50 ?m is from 3.5 to 15.0; and in a waveform measured with an inline film thickness meter and representing a relationship between a position in a width direction on the film and a thickness of the film, a number of peaks A is 20 or less per 1,000 mm of a film width, wherein the peaks A have a peak height of 1.5 ?m or more and a peak slope of 0.000035 or more.Type: ApplicationFiled: October 16, 2015Publication date: November 2, 2017Applicant: MITSUI CHEMICALS, INC.Inventors: Keisuke SATO, Kazuhiro TANIMOTO, Koji OTA, Katsutoshi OZAKI, Katsuki ONISHI