Patents by Inventor Hiroaki Kasai
Hiroaki Kasai 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: 20240137775Abstract: [Problem] Provided are a communication control device, a network device, a communication control system, a communication control method, and an information communication method that make it possible to increase a usage efficiency of a frequency band. [Solution] A communication control device according to the present disclosure includes: a receiving unit that receives a request for radio wave use pertaining to a first wireless communication device; a transmitting unit that, when the request is received, transmits an obtainment request for communication status information indicating a communication status of a second wireless communication device; and a control unit that receives the communication status information of the second wireless communication device after the obtainment request has been transmitted, and determines a condition of the radio wave use by the first wireless communication device based on the communication status information of the second wireless communication device.Type: ApplicationFiled: February 21, 2022Publication date: April 25, 2024Applicant: Sony Group CorporationInventors: Hirofumi KASAI, Sho FURUICHI, Hiroaki TAKANO
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Publication number: 20240016537Abstract: An electrode for a high-frequency medical device in which a coating film is formed on at least a part of a surface of a treatment section of the medical device, wherein the coating film includes a silicone resin, and at least one type of filler having conductivity. Particles of the fillers are fusion-bonded to each other to form a conductive path, and/or a particle of the filler and an electrode substrate disposed on a surface of the treatment section are fusion-bonded to form a conductive path.Type: ApplicationFiled: September 25, 2023Publication date: January 18, 2024Applicant: OLYMPUS CORPORATIONInventors: Asuka TACHIKAWA, Hiroaki KASAI, Yoshiyuki OGAWA, Issei MAEDA
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TREATMENT PORTION OF MEDICAL ENERGY DEVICE, MANUFACTURING METHOD THEREFOR, AND MEDICAL ENERGY DEVICE
Publication number: 20230355291Abstract: This treatment portion of a medical energy device treats a biological tissue by transferring energy to the biological tissue, in a state where the treatment portion is in contact with the biological tissue. The treatment portion of the medical energy device includes a main body portion and a covering film. The main body portion transfers energy to the biological tissue. The covering film contains silicone as a main component, and covers the surface of the main body portion. The silicone includes at least a D unit and a T unit. In the silicone, the molar ratio of silicon atoms forming the D unit with respect to all the silicon atoms is 40-99%. In the silicone, the molar ratio of methyl functional groups bonded to the silicon atoms with respect to all functional groups bonded to the silicon atoms is at least 60%.Type: ApplicationFiled: July 6, 2023Publication date: November 9, 2023Applicant: OLYMPUS CORPORATIONInventors: Yoshiyuki OGAWA, Hiroaki KASAI, Takuya FUJIHARA, Yu MURANO, Issei MAEDA, Asuka TACHIKAWA -
Publication number: 20230238210Abstract: The invention provides an observation system capable of observing a formation position of a target shape that cannot be directly irradiated with an electron beam. The observation system includes an electron microscope and a computer. The electron microscope is configured to irradiate, with an electron beam, a first surface position on a specimen, which is different from a formation position of a target shape on the specimen, detect predetermined electrons that are scattered in the specimen from the first surface position and that escape from the formation position of the target shape to an outside of the specimen, and output the predetermined electrons as a detection signal. The computer is configured to output one or more values related to the target shape based on the detection signal.Type: ApplicationFiled: January 9, 2023Publication date: July 27, 2023Applicant: Hitachi High-Tech CorporationInventors: Hiroaki KASAI, Kenji YASUI, Mayuka OSAKI, Maki KIMURA, Makoto SUZUKI
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Publication number: 20230123450Abstract: A medical apparatus configured for insertion directly or indirectly into a living body is provided with a coloring part having a marking formed on an outer surface. The marking has a coloring layer of an acrylic resin containing a pigment and a protective layer of a polymethacrylic ester covering the coloring layer directly or indirectly, and an upper surface of the coloring part is recessed from a part of the medical apparatus, such as a covering tube of a sheath of an endoscope treatment instrument, adjacent to the coloring part on the outer surface.Type: ApplicationFiled: August 12, 2022Publication date: April 20, 2023Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hiroaki KASAI, Issei MAEDA, Hirotaka KITAGAWA, Takashi MAGARA
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Patent number: 11596719Abstract: This adhesion prevention film for medical devices is a single-layer or multilayer adhesion prevention film that is formed on the surface of a medical device. This adhesion prevention film for medical devices comprises an outermost layer that contains a plurality of conductive particles and a resin having a continuously usable temperature of 200° C. or higher. The surface of the outermost layer is provided with recesses and projections by having parts of the plurality of conductive particles exposed from the resin.Type: GrantFiled: August 20, 2018Date of Patent: March 7, 2023Assignee: OLYMPUS CORPORATIONInventors: Yu Murano, Takuya Fujihara, Takeshi Deguchi, Hiroaki Kasai, Kohei Shiramizu
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Patent number: 11378521Abstract: An optical condition determination system includes a simulation execution unit that performs an optical simulation on a surface texture model that models a surface texture of a target object of the appearance inspection, and a defect model that models a defect of the target object, under a plurality of optical conditions to generate a surface texture image and a defect image, an image synthesizing unit that synthesizes the surface texture image and the defect image generated by an optical simulation under the same optical condition to generate a synthetic image, an evaluation value calculating unit that calculates an evaluation value representing easiness of detecting the defect in the synthetic image, a correlation analysis unit that analyzes a correlation between an optical condition and the evaluation value corresponding to the synthetic image, and an optimum condition searching unit that searches for the optical condition suitable for the appearance inspection based on an analysis result of the correlatioType: GrantFiled: July 8, 2020Date of Patent: July 5, 2022Assignee: HITACHI, LTD.Inventors: Hiroaki Kasai, Keiko Oka, Hisae Shibuya, Akio Yazaki
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Patent number: 11123525Abstract: A wire for a medical device includes a wire body and a solid lubrication film. The wire body has an outer circumferential layer formed of a plurality of metal strands that are twisted with each other. The solid lubrication film is formed at least on outside exposed surfaces of the plurality of metal strands. When a virtual circle as a smallest circle enclosing the outer circumferential layer is assumed in a cross section perpendicular to a central axis of the wire body, a part of an outer edge of the solid lubrication film of the cross section is inside the virtual circle and a cross-sectional area of the solid lubrication film in the cross section satisfies A/B>0.7 where A is a size of a portion outside the virtual circle and B is a size of a portion inside the virtual circle.Type: GrantFiled: November 28, 2018Date of Patent: September 21, 2021Assignee: OLYMPUS CORPORATIONInventors: Naoyasu Hanamura, Hiroaki Kasai, Hisamitsu Kuwabara, Kohei Shiramizu, Takuya Fujihara
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Publication number: 20210072162Abstract: An optical condition determination system includes a simulation execution unit that performs an optical simulation on a surface texture model that models a surface texture of a target object of the appearance inspection, and a defect model that models a defect of the target object, under a plurality of optical conditions to generate a surface texture image and a defect image, an image synthesizing unit that synthesizes the surface texture image and the defect image generated by an optical simulation under the same optical condition to generate a synthetic image, an evaluation value calculating unit that calculates an evaluation value representing easiness of detecting the defect in the synthetic image, a correlation analysis unit that analyzes a correlation between an optical condition and the evaluation value corresponding to the synthetic image, and an optimum condition searching unit that searches for the optical condition suitable for the appearance inspection based on an analysis result of the correlatioType: ApplicationFiled: July 8, 2020Publication date: March 11, 2021Inventors: Hiroaki Kasai, Keiko Oka, Hisae Shibuya, Akio Yazaki
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Publication number: 20200205880Abstract: An electrode for high frequency medical device includes: a base; and a coating layer which is laminated onto the base, includes at least either one of a fluororesin and a silicon compound, has a volume resistivity of 1.0×100 to 1.0×1013?·×cm, and has a thickness of 1 to 30 ?m. The electrode is configured to denature and dissect a living tissue by a Joule heating due to a high frequency current and an arc discharge.Type: ApplicationFiled: March 6, 2020Publication date: July 2, 2020Applicant: OLYMPUS CORPORATIONInventors: Hiroaki KASAI, Yu MURANO, Yoshiyuki OGAWA, Takuya FUJIHARA
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Publication number: 20200164115Abstract: An electrode for high-frequency medical device, has a substrate; an intermediate layer laminated on the substrate, wherein the intermediate layer has a top layer formed on the outermost part of the intermediate layer and the top layer is formed from a metal layer having a higher thermal conductivity than that of the substrate; and a coating layer laminated on the intermediate layer, wherein the coating layer is configured such that a plurality of metal particles having a thermal conductivity equal to or larger than 250 W/(m·K) are distributed in a nonmetal material.Type: ApplicationFiled: January 31, 2020Publication date: May 28, 2020Applicant: OLYMPUS CORPORATIONInventors: Yu MURANO, Yoshiyuki OGAWA, Hiroaki KASAI, Takuya FUJIHARA
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Publication number: 20190282806Abstract: A high-frequency electrode for a medical device includes an electrode base material and an oxide. The electrode base material is made of a metal or an alloy. The oxide is added into the electrode base material. The metal or alloy has a melting point of 2000° C. or higher. The oxide has a particle diameter of 2 ?m or more.Type: ApplicationFiled: June 6, 2019Publication date: September 19, 2019Applicant: OLYMPUS CORPORATIONInventors: Kentaro TSUDA, Hiroaki KASAI, Takuya FUJIHARA, Yu MURANO
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Publication number: 20190192212Abstract: A conductive adhesion preventing film for medical use, includes: a nonconductive base material; and a linear conductor having a length of 10 ?m or more and a diameter of more than 50 nm and contained in the conductive adhesion preventing film by an amount of 5% by mass or more and 40% by mass or less, wherein the conductive adhesion preventing film is formed on an electrode surface of a medical device performing at least one of incision, resection, coagulation, and ablation on living tissue by applying a high frequency voltage.Type: ApplicationFiled: March 1, 2019Publication date: June 27, 2019Applicant: OLYMPUS CORPORATIONInventors: Yu MURANO, Takuya FUJIHARA, Hiroaki KASAI, Takeshi DEGUCHI
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Publication number: 20190091449Abstract: A wire for a medical device includes a wire body and a solid lubrication film. The wire body has an outer circumferential layer formed of a plurality of metal strands that are twisted with each other. The solid lubrication film is formed at least on outside exposed surfaces of the plurality of metal strands. When a virtual circle as a smallest circle enclosing the outer circumferential layer is assumed in a cross section perpendicular to a central axis of the wire body, a part of an outer edge of the solid lubrication film of the cross section is inside the virtual circle and a cross-sectional area of the solid lubrication film in the cross section satisfies A/B>0.7 where A is a size of a portion outside the virtual circle and B is a size of a portion inside the virtual circle.Type: ApplicationFiled: November 28, 2018Publication date: March 28, 2019Applicant: OLYMPUS CORPORATIONInventors: Naoyasu HANAMURA, Hiroaki KASAI, Hisamitsu KUWABARA, Kohei SHIRAMIZU, Takuya FUJIHARA
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Publication number: 20190048205Abstract: An adhesion preventing film coated on a surface of a member, includes a surface layer with siloxane bonding as a main component; and protrusion particles, each protrusion particle having a protrusion part protruding from the surface layer, wherein a methyl group exists at least on a surface of the protrusion part of the protrusion particle.Type: ApplicationFiled: October 18, 2018Publication date: February 14, 2019Applicant: OLYMPUS CORPORATIONInventors: Hiroaki KASAI, Takeshi DEGUCHI, Takuya FUJIHARA
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Publication number: 20180353658Abstract: This adhesion prevention film for medical devices is a single-layer or multilayer adhesion prevention film that is formed on the surface of a medical device. This adhesion prevention film for medical devices comprises an outermost layer that contains a plurality of conductive particles and a resin having a continuously usable temperature of 200° C. or higher. The surface of the outermost layer is provided with recesses and projections by having parts of the plurality of conductive particles exposed from the resin.Type: ApplicationFiled: August 20, 2018Publication date: December 13, 2018Applicant: OLYMPUS CORPORATIONInventors: Yu MURANO, Takuya FUJIHARA, Takeshi DEGUCHI, Hiroaki KASAI, Kohei SHIRAMIZU
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Patent number: 9733066Abstract: The purpose of the present invention is to provide a shape measuring device and method, wherein the separation of light from one distance sensor increases measurement precision without increasing the size of the device. The present invention provides “a shape measuring device comprising: a distance sensor that radiates a laser toward a measurement target and detects the reflected light so as to calculate the distance to a measurement point; a separation unit that separates the light from the distance sensor into a plurality of light rays; a rotation unit that rotates the distance sensor and the measurement target relative to each other; and a data processing unit that integrates measurement results obtained from the distance sensor for the distances to a plurality of measurement points.Type: GrantFiled: April 28, 2014Date of Patent: August 15, 2017Assignee: Hitachi, Ltd.Inventors: Hiroaki Kasai, Tatsuo Hariyama, Masahiro Watanabe
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Patent number: 9541380Abstract: The purpose of the present invention is to provide a shape inspection device that improves, without making the device larger, durability and measurement precision by measuring a plurality of points with a single distance sensor. The present invention provides a shape measuring device that measures the shape of an object to be measured and that comprises: a distance sensor that calculates the distance to the object to be measure by irradiating a measurement light toward the object to be measured and detecting the reflected light from the object to be measured; a separating unit that separates the measurement light from the distance sensor into a plurality of measurement light rays to be irradiated onto a plurality of measuring points; and a selecting unit that selects, from the plurality of measurement light beams separated by the separating unit, the measurement light to irradiate the object to be measured.Type: GrantFiled: October 2, 2013Date of Patent: January 10, 2017Assignee: Hitachi, Ltd.Inventors: Hiroaki Kasai, Tatsuo Hariyama, Masahiro Watanabe
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Publication number: 20160131473Abstract: The purpose of the present invention is to provide a shape measuring device and method, wherein the separation of light from one distance sensor increases measurement precision without increasing the size of the device. The present invention provides “a shape measuring device comprising: a distance sensor that radiates a laser toward a measurement target and detects the reflected light so as to calculate the distance to a measurement point; a separation unit that separates the light from the distance sensor into a plurality of light rays; a rotation unit that rotates the distance sensor and the measurement target relative to each other; and a data processing unit that integrates measurement results obtained from the distance sensor for the distances to a plurality of measurement points.Type: ApplicationFiled: April 28, 2014Publication date: May 12, 2016Inventors: Hiroaki KASAI, Tatsuo HARIYAMA, Masahiro WATANABE
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Publication number: 20150241206Abstract: The purpose of the present invention is to provide a shape inspection device that improves, without making the device larger, durability and measurement precision by measuring a plurality of points with a single distance sensor. The present invention provides a shape measuring device that measures the shape of an object to be measured and that comprises: a distance sensor that calculates the distance to the object to be measure by irradiating a measurement light toward the object to be measured and detecting the reflected light from the object to be measured; a separating unit that separates the measurement light from the distance sensor into a plurality of measurement light rays to be irradiated onto a plurality of measuring points; and a selecting unit that selects, from the plurality of measurement light beams separated by the separating unit, the measurement light to irradiate the object to be measured.Type: ApplicationFiled: October 2, 2013Publication date: August 27, 2015Inventors: Hiroaki Kasai, Tatsuo Hariyama, Masahiro Watanabe