Patents by Inventor Mitsuhiro Shikida
Mitsuhiro Shikida 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: 10765377Abstract: A heartbeat-signal detecting device, which is for detecting a heartbeat signal of a living body, includes: (a) a gas-flow sensor configured to detect a flow rate of exhalation and inhalation passing through a trachea of the living body; (b) a gas-flow calculation controlling portion configured to output a respiration signal that reflects a respiratory motion of the living body, based on a signal outputted from the gas-flow sensor; (c) a waveform analysis controlling portion configured to extract, from the respiration signal, frequency components which are in synchronization with a pulse of a heart of the living body superimposed on the respiration signal, and to output a heartbeat signal representing a heartbeat waveform of the living body; and (d) a heartbeat-signal evaluation controlling portion is configured to evaluate a functional abnormality or an anatomic abnormality of the heart, based on the heartbeat signal analyzed by the waveform analysis controlling portion.Type: GrantFiled: February 3, 2016Date of Patent: September 8, 2020Assignee: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEMInventors: Tsutomu Kawabe, Mitsuhiro Shikida, Miyoko Matsushima
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Publication number: 20180014792Abstract: A heartbeat-signal detecting device, which is for detecting a heartbeat signal of a living body, includes: (a) a gas-flow sensor configured to detect a flow rate of exhalation and inhalation passing through a trachea of the living body; (b) a gas-flow calculation controlling portion configured to output a respiration signal that reflects a respiratory motion of the living body, based on a signal outputted from the gas-flow sensor; (c) a waveform analysis controlling portion configured to extract, from the respiration signal, frequency components which are in synchronization with a pulse of a heart of the living body superimposed on the respiration signal, and to output a heartbeat signal representing a heartbeat waveform of the living body; and (d) a heartbeat-signal evaluation controlling portion is configured to evaluate a functional abnormality or an anatomic abnormality of the heart, based on the heartbeat signal analyzed by the waveform analysis controlling portion.Type: ApplicationFiled: February 3, 2016Publication date: January 18, 2018Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Tsutomu KAWABE, Mitsuhiro SHIKIDA, Miyoko MATSUSHIMA
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Patent number: 8372658Abstract: A chemical analytic apparatus of the present invention is the one which proposes that a miniaturization, a making low-cost and portability are possible and also the operation of each process of separation, concentration and dilution of specimen is possible, and, which includes: an introduction means (S1) that introduces a droplet to which magnetic ultrafine particles are mixed into another liquid that differs from the droplet while maintaining a single droplet; a conveyance means by which the droplet that includes the magnetic particles is conveyed in another liquid of the introduction means by applying magnetic field externally to the magnetic ultrafine particles; and processing means (S2 to S6) by which operations for processing of chemical analysis are performed one by one in the process in which the droplet to which the magnetic ultrafine particles are mixed is conveyed by the conveyance means.Type: GrantFiled: February 7, 2012Date of Patent: February 12, 2013Assignee: Japan Science and Technology AgencyInventors: Mitsuhiro Shikida, Kazuo Sato, Hiroyuki Honda, Kohta Inouchi
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Publication number: 20120215127Abstract: A flow sensor measures an amount of flow of a medium flowing inside a tubular organ of an organism by mounting a flexible substrate, upon which heaters are formed, inside a tube disposed in a manner so as to follow the tubular organ of the organism through which the medium is flowing, and by detecting a state of heat quantity generated from the heaters on the mounted flexible substrate being transmitted to the medium. In the flow sensor, at least the two heaters, formed upon the flexible substrate, respectively form symmetrical structures with identical heating capabilities under identical conditions, and the linear members, which supply power to the heaters from outside the organism, form symmetrical structures with identical heating capabilities under identical conditions, thereby allowing temperature distribution of the heaters and linear members inside the tube to he symmetrical. The plurality of linear members protrude in a manner so as to intersect from inside the tubular organ to outside the organism.Type: ApplicationFiled: August 10, 2010Publication date: August 23, 2012Applicant: National University Corporation Nagoya UniversityInventors: Mitsuhiro Shikida, Tsutomu Kawabe, Miyoko Matsushima, Takuo Yokota, Satoshi Iwai, Naoyuki Matsunaga
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Publication number: 20120135533Abstract: A chemical analytic apparatus of the present invention is the one which proposes that a miniaturization, a making low-cost and portability are possible and also the operation of each process of separation, concentration and dilution of specimen is possible, and, which includes: an introduction means (S1) that introduces a droplet to which magnetic ultrafine particles are mixed into another liquid that differs from the droplet while maintaining a single droplet; a conveyance means by which the droplet that includes the magnetic particles is conveyed in another liquid of the introduction means by applying magnetic field externally to the magnetic ultrafine particles; and processing means (S2 to S6) by which operations for processing of chemical analysis are performed one by one in the process in which the droplet to which the magnetic ultrafine particles are mixed is conveyed by the conveyance meansType: ApplicationFiled: February 7, 2012Publication date: May 31, 2012Applicant: Japan Science and Technology AgencyInventors: Mitsuhiro Shikida, Kazuo Sato, Hiroyuki Honda, Kohta Inouchi
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Publication number: 20080226500Abstract: A chemical analytic apparatus of the present invention is the one which proposes that a miniaturization, a making low-cost and portability are possible and also the operation of each process of separation, concentration and dilution of specimen is possible, and which includes: an introduction means (S1) that introduces a droplet to which magnetic ultrafine particles are mixed into another liquid that differs from the droplet while maintaining a single droplet; a conveyance means by which the droplet that includes the magnetic particles is conveyed in another liquid of the introduction means by applying magnetic field externally to the magnetic ultrafine particles; and processing means (S2 to S6) by which operations for processing of chemical analysis are performed one by one in the process in which the droplet to which the magnetic ultrafine particles are mixed is conveyed by the conveyance meansType: ApplicationFiled: January 13, 2005Publication date: September 18, 2008Inventors: Mitsuhiro Shikida, Kazuo Sato, Hiroyuki Honda, Kohta Inouchi
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Patent number: 5869768Abstract: A material testing device 1 is constituted by a test piece 2, the mechanical properties of which are to be measured and which is connected to the test piece 2, a pair of torsion bars 4 operating as an elastic support portion of the rotary lever 3 and a frame 5 functioning as a rigid support portion of the test piece 2 and the torsion bars 4 and forming an outside frame, the mechanical properties of the test piece 2 are measured by applying an uniaxial tensile force on the test piece 2 in a direction of arrow marks A--A by applying a vertical load W on one end of the rotary lever 3. The test piece 2 is integrally formed with the frame 5 and the rotary lever 3 and therefore, the mechanical property values can easily be measured with no direct contact to the test piece 2.Type: GrantFiled: February 7, 1997Date of Patent: February 9, 1999Assignees: Seiko Instruments Inc., Kazuo Sato, Mitsuhiro ShikidaInventors: Kazuo Sato, Mitsuhiro Shikida
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Patent number: 5488255Abstract: A cooling device according to the present invention, in which a space is formed by means of flat electrodes and side plates disposed on the ends of the flat electrodes, and a flexible film fastened in that space in a shape of the letter S, is fixed to a semiconductor package so that one of the flat electrodes is fitted on the semiconductor package. The respective flat electrodes are alternately powered to move the S shaped section of the flexible film.Type: GrantFiled: December 7, 1993Date of Patent: January 30, 1996Assignee: Hitachi, Ltd.Inventors: Kazuo Sato, Mitsuhiro Shikida, Shigeo Ohashi, Toshio Hatada, Noriyuki Ashiwake, Shinji Tanaka, Takeshi Harada, Yukio Honda
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Patent number: 5380396Abstract: Disclosed is a gas valve capable of switching gases to be introduced within a vacuum chamber with high speed thereby enhancing the controllability of the composion of a semiconducting thin film growing on a substrate and shortening the time required for growth of the thin film. The gas valve comprises a bendable film between a pair of parallel plate electrodes whereby operating the film by an electrostatic force and opening and closing a port for releasing gas to a substrate mounted on the wall surface of a gas chamber and a port for exhausting an unnecessary gas to an exhaust passage. The gas valve is mounted in the vicinity of the substrate within the vacuum chamber for supplying a working gas in a minimum amount required for the film growth.Type: GrantFiled: October 19, 1993Date of Patent: January 10, 1995Assignee: Hitachi, Ltd.Inventors: Mitsuhiro Shikida, Kazuo Sato, Yoshio Kawamura, Shinji Tanaka, Yasuaki Horiuchi, Akira Koide, Toshimitsu Miyada
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Patent number: 5284179Abstract: Disclosed is a gas valve capable of switching gases to be introduced within a vacuum chamber with high speed thereby enhancing the controllability of the composion of a semiconducting thin film growing on a substrate and shortening the time required for growth of the thin film. The gas valve comprises a bendable film between a pair of parallel plate electrodes whereby operating the film by an electrostatic force and opening and closing a port for releasing gas to a substrate mounted on the wall surface of a gas chamber and a port for exhausting an unnecessary gas to an exhaust passage. The gas valve is mounted in the vicinity of the substrate within the vacuum chamber for supplying a working gas in a minimum amount required for the film growth.Type: GrantFiled: May 29, 1992Date of Patent: February 8, 1994Assignee: Hitachi, Ltd.Inventors: Mitsuhiro Shikida, Kazuo Sato, Yoshio Kawamura, Shinji Tanaka, Yasuaki Horiuchi, Akira Koide, Toshimitsu Miyada