Patents by Inventor Yusuke Matsuda
Yusuke Matsuda 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: 9522850Abstract: Provided is a cubic boron nitride sintered body having good wear resistance and fracture resistance. A method for manufacturing a cubic boron nitride sintered body of the present invention is a method for manufacturing a cubic boron nitride sintered body having a cubic boron nitride particle content of 80% by volume or more and 99% by volume or less. The method includes a first step of preparing cubic boron nitride particles; a second step of coating surfaces of the cubic boron nitride particles with a coating material so as to obtain coated particles; a third step of mixing the coated particles and a binder to obtain a mixture; and a fourth step of sintering the mixture.Type: GrantFiled: March 12, 2014Date of Patent: December 20, 2016Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yusuke Matsuda, Katsumi Okamura, Tsutomu Hirano, Tomohiro Fukaya
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Publication number: 20160136735Abstract: A surface-coated boron nitride sintered body tool is provided, in which a cutting edge portion includes a compound sintered body and a coating layer. The compound sintered body includes cBN particles. The compound sintered body includes 45-80 vol % of cBN particles. A first particle size distribution curve of the cBN particles has one or more peaks in a range in which a particle size is 0.1-0.7 ?m. A second particle size distribution curve of the cBN particles has a first peak having a maximum peak height in a range in which the particle size is 2.0-7.0 ?m. An integral value ratio (Io/It×100) is 1-20, in the second particle size distribution curve, the integral value Io being in the range in which the particle size is 0.1-0.7 ?m, and the integral value It being in an entire range.Type: ApplicationFiled: March 20, 2015Publication date: May 19, 2016Inventors: Yusuke MATSUDA, Katsumi OKAMURA, Kenta SANO, Nozomi TSUKIHARA, Makoto SETOYAMA
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Patent number: 9308707Abstract: A joined product has a cemented carbide sintered compact serving as a first material to be joined and a cBN sintered compact serving as a second material to be joined, wherein: the first material to be joined and the second material to be joined are joined together via a joining material disposed therebetween and containing titanium (Ti); and a titanium nitride (TiN) compound layer having a thickness of 10-300 nm is produced at an interface between the second material to be joined and the joining material.Type: GrantFiled: November 22, 2011Date of Patent: April 12, 2016Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp., National Institute of Advanced Industrial Science and TechnologyInventors: Tomoyuki Ishida, Hideki Moriguchi, Takeru Nakashima, Satoru Kukino, Shinichiro Yurugi, Teruhiro Enami, Katsumi Okamura, Yusuke Matsuda, Koji Sano, Keizo Kobayashi, Kimihiro Ozaki
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Patent number: 9292727Abstract: A blood vessel image taking device including a finger presentation area configured at a surface of a cabinet, plural light sources arranged at the finger presentation area for irradiating a presented finger with a light ray, a light quantity controlling unit for controlling light quantities of the plural light sources, an opening portion configured at the finger presentation area, and an image taking unit for taking an image of the light ray from the light source portion passing through the opening portion and irradiated to the finger, in which portions of the finger presentation area are a tip end presentation area for presenting a tip end side of the finger, and a root presentation area for presenting a root side of the finger.Type: GrantFiled: February 11, 2014Date of Patent: March 22, 2016Assignee: HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.Inventors: Harumi Kiyomizu, Naoto Miura, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
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Publication number: 20160052827Abstract: Provided is a cubic boron nitride sintered body having good wear resistance and fracture resistance. A method for manufacturing a cubic boron nitride sintered body of the present invention is a method for manufacturing a cubic boron nitride sintered body having a cubic boron nitride particle content of 80% by volume or more and 99% by volume or less. The method includes a first step of preparing cubic boron nitride particles; a second step of coating surfaces of the cubic boron nitride particles with a coating material so as to obtain coated particles; a third step of mixing the coated particles and a binder to obtain a mixture; and a fourth step of sintering the mixture.Type: ApplicationFiled: March 12, 2014Publication date: February 25, 2016Inventors: Yusuke MATSUDA, Katsumi OKAMURA, Tsutomu HIRANO, Tomohiro FUKAYA
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Publication number: 20150379254Abstract: The purpose of the present invention is to provide a highly accurate authentication system in a biometric authentication system. The authentication system includes: a measurement device that acquires biometric modality information from a living body of a first user; an input unit that generates at least one item of input information from the biometric modality information; a storage device that stores first feature information acquired from the biometric modality information of the first user, and second feature information acquired based on a correlation between the biometric modality information of the first user and biometric modality information of a second user; and an authentication unit that authenticates the first user by collating the input information with the first feature information and collating the input information with the second feature information.Type: ApplicationFiled: June 12, 2015Publication date: December 31, 2015Inventors: Yusuke MATSUDA, Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE
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Publication number: 20150324566Abstract: An authentication device that authenticates an individual by using features of a biological object includes an input device 2 to place the biological object thereon, a plurality of image capture devices 9 that capture the biological object, an authentication processing unit 10 that processes images captured by the plurality of image capture devices, a plurality of light sources 3 to capture the features of the biological object and the biological object, and a storage device 14 that stores first feature data registered in advance.Type: ApplicationFiled: August 28, 2012Publication date: November 12, 2015Applicant: Hitachi, Ltd.Inventors: Naoto MIURA, Harumi KIYOMIZU, Akio NAGASAKA, Takafumi MIYATAKE, Yusuke MATSUDA
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Patent number: 9120707Abstract: cBN sintered body includes cBN and a binder phase, wherein a content of the cBN is 82-98 volume %, and in a cross section of the cBN sintered body, an isolated binder phase having an area of 0.05-0.5 ?m2 has a protrusion of two or more steps, and assuming that in a first-step protrusion, A1 represents a side length which is perpendicular in a tip direction, and B1 represents a side length which is parallel in the tip direction; and in a second-step protrusion, A2 represents a side length which is perpendicular in the tip direction, and B2 represents a side length which is parallel in the tip direction, an area ratio of an isolated binder phase having a protrusion in which A1/B1 is 1-10 times of A2/B2, to the whole of the binder phase having the area of 0.05-0.5 ?m2, is 25% or more.Type: GrantFiled: October 18, 2011Date of Patent: September 1, 2015Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yusuke Matsuda, Katsumi Okamura, Satoru Kukino
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Publication number: 20150210232Abstract: On-vehicle electrical loads (121,122) are connected to an on-vehicle battery (101) via a series circuit including a load switching element (221,222) and a reverse current interrupting element (200a) for a load circuit, and a feeding switching element (120A) that is closed in response to closure of a power supply switch (110). The element (FET) (200a) is closed when the switch (110) is closed and a power supply voltage is applied to a load power supply terminal (Vba) connected to the element (120A), to thereby be energized in an energization direction of an internal parasitic diode thereof. The element (200a) is de-energized when the switch (110) is opened. Thus, malfunction is prevented, which occurs when the element (120A) is opened, a short-to-power flows backward via the element (200a) into the terminal (Vba) so as to feed power to another device connected to the element (200a).Type: ApplicationFiled: August 1, 2014Publication date: July 30, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shozo KANZAKI, Koji HASHIMOTO, Kazunari MASUDOME, Yoshitake NISHIUMA, Yusuke MATSUDA, Tomohiro KIMURA, Shinji HIGASHIBATA
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Patent number: 9076027Abstract: It is provided an authentication system comprising: an input device; an image pickup device for picking up an image of the living body; an image processing unit for processing the image picked up by the image pickup device; a storage device for storing a plurality of pieces of first feature data and a plurality of pieces of second feature data; and a matching processing unit for checking input data, which indicates features of a living body picked up by the image pickup device, against each of the plurality of pieces of first feature data and each of the plurality of pieces of second feature data. Each of the plurality of pieces of second feature data is data that is smaller in size than each of the plurality of pieces of first feature data and that includes at least a part of the features of the living body.Type: GrantFiled: November 17, 2009Date of Patent: July 7, 2015Assignee: HITACHI INDUSTRY & CONTROL COLUTIONS, LTD.Inventors: Naoto Miura, Harumi Kiyomizu, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
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Patent number: 8908930Abstract: A primary object of the present invention is to extract a difference in shading of a blood vessel image in a picked up image as information to be used for authentication, and to acquire a larger number of pieces of biometric information from one image. An individual authentication device to be used to authenticate an individual using feature information of a vascular pattern acquired from a living body includes an imaging unit that images a region of the living body serving as an object of authentication, and an arithmetic unit that acquires the picked up image as an authentication image. The arithmetic unit extracts a vascular pattern from the authentication image, and acquires a degree of shading of the vascular pattern as the feature information.Type: GrantFiled: September 6, 2011Date of Patent: December 9, 2014Assignee: Hitachi, Ltd.Inventors: Yusuke Matsuda, Akio Nagasaka, Naoto Miura, Harumi Kiyomizu, Takafumi Miyatake
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Publication number: 20140286541Abstract: A blood vessel image taking device including a finger presentation area configured at a surface of a cabinet, plural light sources arranged at the finger presentation area for irradiating a presented finger with a light ray, a light quantity controlling unit for controlling light quantities of the plural light sources, an opening portion configured at the finger presentation area, and an image taking unit for taking an image of the light ray from the light source portion passing through the opening portion and irradiated to the finger, in which portions of the finger presentation area are a tip end presentation area for presenting a tip end side of the finger, and a root presentation area for presenting a root side of the finger.Type: ApplicationFiled: February 11, 2014Publication date: September 25, 2014Applicant: HITACHI, LTD.Inventors: Harumi KIYOMIZU, Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE, Yusuke MATSUDA
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Patent number: 8803456Abstract: A motor drive control device is provided in which if any abnormality occurs in a drive control circuit, drive command signals the drive control circuit generates are interrupted at once, so that an AC motor can be stopped in safety. A monitor control circuit and drive command signal interruption circuit are provided to the drive control circuit that takes variable-speed control of the AC motor supplied with power from a DC drive power source via a semiconductor bridge circuit. If any abnormality occurs in the drive control circuit, the drive command signals the drive control circuit generates are interrupted at once. When starting operation, the drive control circuit and monitor control circuit cooperate with each other to conduct preliminary check as to whether or not the drive command signal interruption circuit operates normally, base on a predetermined time schedule, and stop the AC motor without fail if any abnormality occurs during operation.Type: GrantFiled: September 12, 2012Date of Patent: August 12, 2014Assignee: Mitsubishi Electric CorporationInventors: Yuji Zushi, Yusuke Matsuda, Mitsuyasu Kunihiro
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Patent number: 8670240Abstract: A circuit board is hermetically-sealed and housed in a steel case that is composed of a metal base and a metal cover, the cover disposed opposite to a first board surface has a tall flat portion disposed opposite to a connector housing and a short flat portion disposed opposite to a heating component, and the heat generated from the heating component is directly transferred to a heat transfer base portion of the base via a heat transfer mechanism and a heat transfer filling material. Surface finishing in which the coefficients of heat radiation are mutually 0.7 to 1.0 is applied to the surface of the heating component and the opposite inner surface of the cover, and radiation and heat transfer are efficiently performed to the short flat portion of the cover.Type: GrantFiled: October 5, 2011Date of Patent: March 11, 2014Assignee: Mitsubishi Electric CorporationInventors: Koji Hashimoto, Isao Azumi, Yusuke Matsuda, Yoshitake Nishiuma
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Publication number: 20140009593Abstract: An imaging module of the invention includes: an electrical cable; a solid-state image sensing device; and a flexible wiring substrate including: a device-mounted portion onto which the solid-state image sensing device is mounted; two extended portions which bend at both sides of the device-mounted portion and extend from the device-mounted portion so as to come close to each other with increasing distance from the device-mounted portion; two connection end portions extending from the two extended portions along the direction of the axis of the front end of the electrical cable on an opposite side of the device-mounted portion; and terminals which are provided on the two connection end portions and connected to the electrical cable, the flexible wiring substrate electrically connecting the solid-state image sensing device and the electrical cable.Type: ApplicationFiled: September 6, 2013Publication date: January 9, 2014Applicant: FUJIKURA LTD.Inventors: Takeshi SEGI, Yusuke MATSUDA, Katsuya YAMAGAMI, Kenichi NAKATATE
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Publication number: 20130329031Abstract: An authentication apparatus that authenticates individuals with the use of features of a living body includes an input device for placing the living body thereon, an imaging device that images the living body, an image processing unit that processes an image taken by the imaging device, the features of the living body, a plurality of light sources for imaging the living body, and a light guide member. The authentication apparatus also includes first feature data registered in advance, a storage device that stores the first feature data therein, second feature data indicative of the features of the living body imaged by the imaging device, and a checking processing unit that checks the first feature data against the second feature data. The plurality of light sources is arranged on a lower portion of the light guide member, and the plurality of light sources is sequentially turned on.Type: ApplicationFiled: April 22, 2011Publication date: December 12, 2013Applicant: HITACHI, LTD.Inventors: Naoto Miura, Harumi Kiyomizu, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
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Publication number: 20130278191Abstract: A motor drive control device is provided in which if any abnormality occurs in a drive control circuit, drive command signals the drive control circuit generates are interrupted at once, so that an AC motor can be stopped in safety. A monitor control circuit and drive command signal interruption circuit are provided to the drive control circuit that takes variable-speed control of the AC motor supplied with power from a DC drive power source via a semiconductor bridge circuit. If any abnormality occurs in the drive control circuit, the drive command signals the drive control circuit generates are interrupted at once. When starting operation, the drive control circuit and monitor control circuit cooperate with each other to conduct preliminary check as to whether or not the drive command signal interruption circuit operates normally, base on a predetermined time schedule, and stop the AC motor without fail if any abnormality occurs during operation.Type: ApplicationFiled: September 12, 2012Publication date: October 24, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuji ZUSHI, Yusuke MATSUDA, Mitsuyasu KUNIHIRO
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Publication number: 20130236240Abstract: The present joined product is a joined product with a cemented carbide sintered compact serving as a first material to be joined and a cBN sintered compact serving as a second material to be joined, wherein: the first material to be joined and the second material to be joined are joined together via a joining material disposed therebetween and containing titanium (Ti); and a titanium nitride (TiN) compound layer having a thickness of 10-300 nm is produced at an interface between the second material to be joined and the joining material.Type: ApplicationFiled: November 22, 2011Publication date: September 12, 2013Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Tomoyuki Ishida, Hideki Moriguchi, Takeru Nakashima, Satoru Kukino, Shinichiro Yurugi, Teruhiro Enami, Katsumi Okamura, Yusuke Matsuda, Koji Sano, Keizo Kobayashi, Kimihiro Ozaki
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Publication number: 20120320531Abstract: A circuit board is hermetically-sealed and housed in a steel case that is composed of a metal base and a metal cover, the cover disposed opposite to a first board surface has a tall flat portion disposed opposite to a connector housing and a short flat portion disposed opposite to a heating component, and the heat generated from the heating component is directly transferred to a heat transfer base portion of the base via a heat transfer mechanism and a heat transfer filling material. Surface finishing in which the coefficients of heat radiation are mutually 0.7 to 1.0 is applied to the surface of the heating component and the opposite inner surface of the cover, and radiation and heat transfer are efficiently performed to the short flat portion of the cover.Type: ApplicationFiled: October 5, 2011Publication date: December 20, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji HASHIMOTO, Isao AZUMI, Yusuke MATSUDA, Yoshitake NISHIUMA
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Publication number: 20120230786Abstract: cBN sintered body includes cBN and a binder phase, wherein a content of the cBN is 82-98 volume %, and in a cross section of the cBN sintered body, an isolated binder phase having an area of 0.05-0.5 ?m2 has a protrusion of two or more steps, and assuming that in a first-step protrusion, A1 represents a side length which is perpendicular in a tip direction, and B1 represents a side length which is parallel in the tip direction; and in a second-step protrusion, A2 represents a side length which is perpendicular in the tip direction, and B2 represents a side length which is parallel in the tip direction, an area ratio of an isolated binder phase having a protrusion in which A1/B1 is 1-10 times of A2/B2, to the whole of the binder phase having the area of 0.05-0.5 ?m2, is 25% or more.Type: ApplicationFiled: October 18, 2011Publication date: September 13, 2012Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yusuke Matsuda, Katsumi Okamura, Satoru Kukino