Patents by Inventor Masashi Yamada
Masashi Yamada 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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Publication number: 20220065953Abstract: A measurement in a high accuracy is performed when acquiring a tomographic image or the like. Provided is a measuring apparatus, including an electrode unit including a plurality of electrodes in contact with a living body; a magnetic sensor array, including a plurality of magnetic sensor cells, capable of detecting input magnetic fields in three axial directions in a plurality of positions in a three-dimensional space; a current applying section configured to apply a current flowing in the living body by at least one electrode pair of the plurality of electrodes; a measurement data acquiring section configured to acquire measurement data based on the input magnetic field. Which is detected from the living body by the magnetic sensor array during a current flows in the living body; and an estimation section configured to estimate a current flowing in the living body based on the measurement data.Type: ApplicationFiled: November 12, 2021Publication date: March 3, 2022Inventors: Hideyuki TSUJI, Shigeki OKATAKE, Masashi YAMADA
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Publication number: 20220048125Abstract: A reamer is rotated about a central axis and has, in a direction along a central axis, a tool front end and a tool rear end that is an end opposite to the tool front end. The reamer includes a blade on a tool front end side. The blade has, on a circumferential surface, a chamfered cutting edge located on the tool front end side, a circumferential cutting edge contiguous to an end of the chamfered cutting edge on a tool rear end side, and a margin that is a surface contiguous to the circumferential cutting edge. The circumferential cutting edge includes a front end portion between a first position and a second position, the first position being an end on a chamfered cutting edge side, the second position having a distance of 1 mm from the first position in a direction of extension of the circumferential cutting edge.Type: ApplicationFiled: March 10, 2020Publication date: February 17, 2022Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Tool Net, Inc.Inventors: Masashi YAMADA, Masaaki JINDAI, Jun OKAMOTO, Futoshi TAKESHITA, Kyosuke KAI, Katsutoshi FUKUDA
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Publication number: 20220022761Abstract: A sensor of a biological information measurement device is easily and reliably attached to a living body with an appropriate pressing force. The biological information measurement device comprises a base, an adhering unit that is provided in a bottom surface portion of the base and sticks to a living body surface of a subject with a predetermined sticking force, a first sensor unit that is provided in a displaceable manner with respect to the base for measuring biological information of the subject, and a pressing unit for elastically pressing the first sensor unit to the living body surface against the predetermined sticking force in a case where the adhering unit sticks to the living body surface.Type: ApplicationFiled: December 4, 2019Publication date: January 27, 2022Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Masashi Yamada, Yuka Tsuboi
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Patent number: 11198187Abstract: An oil hole reamer includes an oil passage extending inside a tool main body along an axis of the tool main body, and an oil hole extending radially outward from the oil passage to an outer circumference of the tool main body. An oil outlet of the oil hole is formed to be open toward a position corresponding to a corner at which a tip cutting edge intersects an outer-circumference cutting edge and to cause at least part of the oil outlet to be open to the outer-circumference flank face.Type: GrantFiled: October 16, 2019Date of Patent: December 14, 2021Assignees: Sumitomo Electric Tool Net, Inc., SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Jun Okamoto, Futoshi Takeshita, Kyosuke Kai, Katsutoshi Fukuda, Masashi Yamada
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Patent number: 11191487Abstract: A contact state estimating device includes: a first and a second electrode brought into contact with an object to be measured; a direct current voltage supply unit; a signal switching unit configured to switch a first pathway through which the direct current voltage supply unit supplies direct current voltage to the first electrode and an output signal from the second electrode is output and a second pathway through which the direct current voltage supply unit supplies direct current voltage to the second electrode and an output signal from the first electrode is output to each other; and a contact state estimating unit configured to estimate a contact state of the first electrode or the second electrode with the object, based on the output signal acquired at a timing at which a pulse noise is anticipated to occur in association with switching between the first pathway and the second pathway.Type: GrantFiled: November 28, 2017Date of Patent: December 7, 2021Assignee: Asahi Kasel Kabushiki KaishaInventors: Kei Kodama, Masashi Yamada
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Publication number: 20210321859Abstract: Provided is a scanning endoscope including: an insertion portion that has a distal-end section and a proximal-end section; a light-guide optical system that guides illumination light toward the distal-end section; a spherical lens that is disposed in the distal-end section and that radiates the illumination light guided by the light-guide optical system onto a subject; an optical waveguide that extends from the distal-end section to the proximal-end section, that receives observation light coming from the subject, and that guides the observation light; and a light detector that detects the observation light guided by the optical waveguide, wherein the optical waveguide is inclined, at the distal-end section, in such a direction as to approach an optical axis of the spherical lens toward a distal end.Type: ApplicationFiled: June 28, 2021Publication date: October 21, 2021Applicant: OLYMPUS CORPORATIONInventors: Takeshi MORI, Katsunori KUMAI, Takehiro MIKI, Masashi YAMADA
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Patent number: 11065025Abstract: A probe configured to be connected to a transducer unit configured to generate ultrasonic vibration, includes an elongated vibration transmission portion configured to transmit the ultrasonic vibration; and an engagement member provided on and/or near an outer circumference at a position which becomes a node of the ultrasonic vibration when the ultrasonic vibration is transmitted to the vibration transmission portion, the engagement member being formed by a material of an identical to or smaller damping rate than a damping rate of the ultrasonic vibration in the vibration transmission portion, and the engagement member being engaged with an exterior member disposed on an outer side of the vibration transmission portion.Type: GrantFiled: January 10, 2019Date of Patent: July 20, 2021Assignee: OLYMPUS CORPORATIONInventors: Yukihiko Shimamura, Masashi Yamada, Hideyuki Komamura, Tomokazu Shimizu
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Patent number: 10966777Abstract: A treatment device includes a vibrator capable of ultrasonically vibrating, a front mass portion having a first resonance frequency and connected to the vibrator in a manner capable of transmitting ultrasonic vibration, a treatment probe configured to treat a subject and having a second resonance frequency that is higher than the first resonance frequency of the front mass portion, and a connection portion connecting a distal end surface of the front mass portion and a proximal end surface of the treatment probe by a pressing force, and serving as an antinode position when vibrating at the first resonance frequency.Type: GrantFiled: June 7, 2018Date of Patent: April 6, 2021Assignee: OLYMPUS CORPORATIONInventors: Hideo Sanai, Kenichi Kimura, Masashi Yamada, Masami Oshida
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Patent number: 10941324Abstract: An adhesive composition is provided which exhibits not only adhesiveness to a polyimide film or copper foil, but also high adhesiveness to gold-plated copper foil, and is also superior in heat resistance such as soldering heat resistance. The adhesive composition comprises a solvent-soluble polyamide resin (A) which is solid at 25° C., an epoxy resin (B), and an imidazole compound (C) having an alkoxysilyl group, wherein the mass ratio (A)/(B) of the component (A) to the component (B) is 99/1-50/50, and the content of the component (C) is 0.3-5 parts by mass with respect to 100 parts by mass of the total of the component (A) and the component (B).Type: GrantFiled: July 3, 2017Date of Patent: March 9, 2021Assignee: TOAGOSEI CO., LTD.Inventors: Makoto Hirakawa, Masashi Yamada, Anna Sekioka
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Publication number: 20210060675Abstract: An oil hole reamer includes an oil passage extending inside a tool main body along an axis of the tool main body, and an oil hole extending radially outward from the oil passage to an outer circumference of the tool main body. An oil outlet of the oil hole is formed to be open toward a position corresponding to a corner at which a tip cutting edge intersects an outer-circumference cutting edge and to cause at least part of the oil outlet to be open to the outer-circumference flank face.Type: ApplicationFiled: October 16, 2019Publication date: March 4, 2021Applicants: Sumitomo Electric Tool Net, Inc., SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Jun OKAMOTO, Futoshi TAKESHITA, Kyosuke KAI, Katsutoshi FUKUDA, Masashi YAMADA
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Publication number: 20210015516Abstract: A medical device system that includes an ultrasound transducer and a processor. The ultrasound transducer includes a plurality of electrode plates to which a drive signal is supplied, and a plurality of piezoelectric elements that are alternately arranged with the electrode plates, and that generate ultrasound vibrations according to the drive signal. The ultrasound transducer also includes an electric wiring that electrically connects the electrode plates adjacent to each other, and a memory that stores reference information regarding specific initial characteristics. The processor analyzes the generated ultrasonic vibrations to determine a resonance point of the ultrasound transducer, and detects resonance point information regarding the resonance point. The processor then determines whether an abnormality has occurred in the ultrasound transducer by comparing the stored reference information and the detected resonance point information.Type: ApplicationFiled: October 7, 2020Publication date: January 21, 2021Applicant: OLYMPUS CORPORATIONInventors: Minoru KAWASAKI, Masashi YAMADA
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Publication number: 20210009865Abstract: Provided is an adhesive composition that is characterized by containing a modified polypropylene-based resin (A), an epoxy resin (B) and an unmodified polypropylene-based resin (C), with the modified polypropylene-based resin (A) being a resin obtained by graft modifying an unmodified polypropylene-based resin (D) with a modifying agent that contains an ?,?-unsaturated carboxylic acid or a derivative thereof, the content of the modified polypropylene-based resin (A) being 10 mass % or more in terms of solid content, and the content of the unmodified polypropylene-based resin (C) being 1-90 mass % in terms of solid content. The adhesive composition exhibits good adhesion to a copper foil or a base material film comprising a polyimide resin or the like, and exhibits improved dielectric properties.Type: ApplicationFiled: March 1, 2019Publication date: January 14, 2021Inventors: Yuya OKIMURA, Makoto HIRAKAWA, Masashi YAMADA
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Patent number: 10875283Abstract: A laminate having an adhesive layer, which exhibits excellent adhesion to base films made from polyimide resins and the like or copper foils, as well as superior electrical properties, and also providing a laminate having an adhesive layer, which is low in warpage when the adhesive layer is in B stage, and which is excellent in storage stability of the laminate. The laminate having an adhesive layer includes a base film and an adhesive layer formed on at least one of the surfaces of the base film, in which the adhesive layer is formed of an adhesive composition comprising a carboxyl group-containing styrene based elastomer and an epoxy resin, wherein the content of the carboxyl group-containing styrene based elastomer is 50 parts by mass or more relative to 100 parts by mass of the solid content of the adhesive composition; the content of the epoxy resin is from 1 to 20 parts by mass relative to 100 parts by mass of the carboxyl group-containing styrene based elastomer; and the adhesive layer is in B-stage.Type: GrantFiled: July 21, 2015Date of Patent: December 29, 2020Assignee: TOAGOSEI CO., LTD.Inventors: Yuya Okimura, Masashi Yamada
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Patent number: 10813660Abstract: An ultrasonic treatment device includes a first vibration transmitting member and a second vibration transmitting member and being configured to treat a biological tissue by means of vibration transmitted by the first vibration transmitting member and the second vibration transmitting member. At a boundary position between the first vibration transmitting member and the second vibration transmitting member, the first vibration transmitting member has a boundary face including a contacting area that is in contact with the second vibration transmitting member at the face, and a non-contacting area that is not in contact with the second vibration transmitting member.Type: GrantFiled: September 9, 2016Date of Patent: October 27, 2020Assignee: OLYMPUS CORPORATIONInventors: Masashi Yamada, Hideo Sanai, Masami Oshida
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Publication number: 20200305923Abstract: A vibration transmitter includes: a first rod including a fitting hole extending along the longitudinal axis thereof; and a second rod attached to a distal end portion of the first rod by a fitting portion fitted into the fitting hole in a state where a compressed surface pressure is received from the inner surface of fitting hole. The first rod includes: a first region in which the fitting portion is fitted into the fitting hole; and a second region positioned proximal of the first region. In the first region of the first rod, a crystal grain diameter is larger than that in the second region of the first rod.Type: ApplicationFiled: June 12, 2020Publication date: October 1, 2020Applicant: OLYMPUS CORPORATIONInventors: Yasuhiro MAEDA, Yukihiko SHIMAMURA, Masashi YAMADA
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Patent number: 10743902Abstract: A vibrating body unit includes a vibration generator, a vibration transmitter and first amplitude enlarger. The vibration generator generates ultrasonic vibration whose amplitude has a predetermined correlation with a frequency. The vibration transmitter has a proximal end and a distal end while the vibration generator is attached from a proximal side, and transmits the ultrasonic vibration to a distal side in a longitudinal axis direction. At least one first amplitude enlarger is provided in the vibration transmitter, and enlarges the amplitude of the ultrasonic vibration at a first amplitude enlargement rate in a direction of transmission of the ultrasonic vibration, the first amplitude enlargement rate having a correlation with the frequency opposite to the predetermined correlation.Type: GrantFiled: July 14, 2017Date of Patent: August 18, 2020Assignee: OLYMPUS CORPORATIONInventors: Masashi Yamada, Hideto Yoshimine
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Patent number: 10702297Abstract: The treatment section integrally includes, on the distal side of a probe, a cortical bone abrasion portion which abrades a living body tissue or a bone among treated target parts by mechanical abrasion by ultrasonic vibration, and a cartilage abrasion portion which generates heat by ultrasonic vibration and abrades a cartilage among the treated target parts by dissolutive abrasion.Type: GrantFiled: September 28, 2018Date of Patent: July 7, 2020Assignee: OLYMPUS CORPORATIONInventors: Masashi Yamada, Yasuo Tanigami
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Patent number: 10695082Abstract: The ultrasonic treatment instrument for articulations according to the embodiment of the present invention includes, at the distal end of the probe, the treatment section which performs a desired treatment on the treated target part. The treatment portion is provided with an edge which extends in a direction crossing, or a direction parallel to, the longitudinal direction of the probe; a first ultrasonic transducer which generates ultrasonic vibration in a direction crossing the edge; and a second ultrasonic transducer which generates ultrasonic vibration in a direction parallel, to the edge.Type: GrantFiled: September 28, 2018Date of Patent: June 30, 2020Assignee: OLYMPUS CORPORATIONInventors: Masashi Yamada, Yasuo Tanigami
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Publication number: 20200149895Abstract: A transfer guiding device includes: a reception unit that receives a destination of a first vehicle used by a user; a search unit that searches for first and second routes along which the user travels from the first vehicle's current location to the destination respectively by the first vehicle and by the first and second vehicles; a calculation unit that calculates a first arrival time at which the user arrives at the destination by the first route, based on a first required time to travel through the first route, and a second arrival time at which the user arrives at the destination by the second route, based on a second required time to travel through the second route; and a transmission unit that transmits a message for recommending the user to transfer to the second vehicle when the first arrival time is later than the second arrival time.Type: ApplicationFiled: November 14, 2019Publication date: May 14, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro OE, Michio IKEDA, Kohei UEZATO, Masashi YAMADA, Kenichi KOMURO, Toshiaki NIWA
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Publication number: 20200152350Abstract: Provided is a composition for sealing a covered wire, the composition containing 2-cyanoacrylate including 10% by mass or more of an alkyl-2-cyanoacrylate that has, in a main chain, an alkyl group having 4 or more carbon atoms, and the composition having both water resistance and thermal shock resistance under high temperature and high humidity conditions and also having excellent heat resistance.Type: ApplicationFiled: May 23, 2018Publication date: May 14, 2020Applicant: TOAGOSEI CO., LTD.Inventors: Hiroyuki YAMAGA, Masashi YAMADA