Patents by Inventor Tetsuya Yagi
Tetsuya Yagi 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: 10283489Abstract: A light emitting device, includes: three light emitting elements with different emission colors; and a package including a plurality of lead frames to individually drive the three light emitting elements, and a resin molding formed integrally with the plurality of lead frames and including an opening in a surface of the resin molding to house the light emitting elements, a portion of each of the plurality of lead frames being exposed on a bottom surface of the opening, and another portion of each of the plurality of lead frames being exposed on an outer surface of the resin molding, the three light emitting elements being disposed on one of the lead frames exposed on the bottom surface of the opening and arranged so as to form an isosceles triangle with a bottom angle of 30 to 60 degrees, and a distance between two of the light emitting elements located on a base of the isosceles triangle is one to two times a length of a side of the light emitting element located at an apex of the isosceles triangle.Type: GrantFiled: December 18, 2015Date of Patent: May 7, 2019Assignee: NICHIA CORPORATIONInventors: Yasuhiko Takagi, Tetsuya Yagi
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Patent number: 9905385Abstract: According to an electromagnetic switch of the present invention, a crossbar operating in conjunction with a movable core slides in response to magnetization or demagnetization of an operating coil to cause attraction or separation between a fixed contact point and a movable contact point on the supply-side and between a fixed contact point and a movable contact point on the load-side. The electromagnetic switch further includes a first crossbar sliding part and a second crossbar sliding part, as well as a first casing sliding part and a second casing sliding part that allow the first and second crossbar sliding parts to slide. A contact between the first casing sliding part and the first crossbar sliding part or between the second casing sliding part and the second crossbar sliding part causes the crossbar on the side of the movable core to be tilted in a direction opposite to the direction of gravity with respect to the horizontal.Type: GrantFiled: December 24, 2014Date of Patent: February 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Takashi Inaguchi, Sachiyo Kato, Katsuki Hotta, Tetsuya Yagi
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Publication number: 20170358414Abstract: According to an electromagnetic switch of the present invention, a crossbar operating in conjunction with a movable core slides in response to magnetization or demagnetization of an operating coil to cause attraction or separation between a fixed contact point and a movable contact point on the supply-side and between a fixed contact point and a movable contact point on the load-side. The electromagnetic switch further includes a first crossbar sliding part and a second crossbar sliding part, as well as a first casing sliding part and a second casing sliding part that allow the first and second crossbar sliding parts to slide. A contact between the first casing sliding part and the first crossbar sliding part or between the second casing sliding part and the second crossbar sliding part causes the crossbar on the side of the movable core to be tilted in a direction opposite to the direction of gravity with respect to the horizontal.Type: ApplicationFiled: December 24, 2014Publication date: December 14, 2017Applicant: Mitsubishi Electric CorporationInventors: Takashi INAGUCHI, Sachiyo KATO, Katsuki HOTTA, Tetsuya YAGI
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Patent number: 9793453Abstract: A light emitting device includes a package that has an opening, a first outer side surface of a first resin and a second outer side surface of a second resin, the second resin having a reflectance higher than that of the first resin, and the second outer side surface being positioned below the first outer side surface; and a lead frame that is buried in the package such that a part of the lead frame is exposed at a bottom surface of the opening, and a part of the lead frame projects from the second outer side surface.Type: GrantFiled: July 7, 2015Date of Patent: October 17, 2017Assignee: NICHIA CORPORATIONInventors: Tetsuya Yagi, Yuki Miyaura
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Publication number: 20160190106Abstract: A light emitting device, includes: three light emitting elements with different emission colors; and a package including a plurality of lead frames to individually drive the three light emitting elements, and a resin molding formed integrally with the plurality of lead frames and including an opening in a surface of the resin molding to house the light emitting elements, a portion of each of the plurality of lead frames being exposed on a bottom surface of the opening, and another portion of each of the plurality of lead frames being exposed on an outer surface of the resin molding, the three light emitting elements being disposed on one of the lead frames exposed on the bottom surface of the opening and arranged so as to form an isosceles triangle with a bottom angle of 30 to 60 degrees, and a distance between two of the light emitting elements located on a base of the isosceles triangle is one to two times a length of a side of the light emitting element located at an apex of the isosceles triangle.Type: ApplicationFiled: December 18, 2015Publication date: June 30, 2016Inventors: Yasuhiko TAKAGI, Tetsuya YAGI
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Publication number: 20150311411Abstract: A light emitting device includes a package that has an opening, a first outer side surface of a first resin and a second outer side surface of a second resin, the second resin having a reflectance higher than that of the first resin, and the second outer side surface being positioned below the first outer side surface; and a lead frame that is buried in the package such that a part of the lead frame is exposed at a bottom surface of the opening, and a part of the lead frame projects from the second outer side surface.Type: ApplicationFiled: July 7, 2015Publication date: October 29, 2015Applicant: NICHIA CORPORATIONInventors: Tetsuya YAGI, Yuki MIYAURA
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Patent number: 9112124Abstract: With a light emitting device of a package formed by two types of molded resins, entry of water from between the molded resins may cause the light emitting device to be incapable of turning on. A light emitting device of the present invention includes: a package that has an opening at an upper surface thereof; a first molded resin that forms a part of the upper surface of the package; a second molded resin that forms an inner wall surface of the opening of the package; a lead frame that is buried in the package so as to be partially exposed at a bottom surface of the opening of the package, the lead frame having an end portion externally projected outside from a side surface of the package; and a light emitting element that is connected to an upper surface of the lead frame being exposed at the bottom surface of the opening. The second molded resin is higher than the first molded resin in light reflectance to light emitted from the light emitting element.Type: GrantFiled: July 8, 2014Date of Patent: August 18, 2015Assignee: NICHIA CORPORATIONInventors: Tetsuya Yagi, Yuki Miyaura
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Publication number: 20150115294Abstract: A light emitting device includes a resin-molded body including: a light emitting window, a white portion, and a black portion, wherein, in a top plan view of the light emitting device, the white portion surrounds the light emitting window, and the black portion surrounds the white portion; an electrode protruding from an outer surface of the resin-molded body; and a plurality of light emitting elements mounted in an area surrounded by the white portion, the plurality of light emitting elements including at least two light emitting elements that are different in type from one another.Type: ApplicationFiled: July 3, 2014Publication date: April 30, 2015Applicant: Nichia CorporationInventors: Takayuki IGARASHI, Ryo OISHI, Toshimasa TAKAO, Tetsuya YAGI
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Publication number: 20150014710Abstract: With a light emitting device of a package formed by two types of molded resins, entry of water from between the molded resins may cause the light emitting device to be incapable of turning on. A light emitting device of the present invention includes: a package that has an opening at an upper surface thereof; a first molded resin that forms a part of the upper surface of the package; a second molded resin that forms an inner wall surface of the opening of the package; a lead frame that is buried in the package so as to be partially exposed at a bottom surface of the opening of the package, the lead frame having an end portion externally projected outside from a side surface of the package; and a light emitting element that is connected to an upper surface of the lead frame being exposed at the bottom surface of the opening. The second molded resin is higher than the first molded resin in light reflectance to light emitted from the light emitting element.Type: ApplicationFiled: July 8, 2014Publication date: January 15, 2015Inventors: Tetsuya YAGI, Yuki MIYAURA
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Publication number: 20140319551Abstract: A light emitting device includes a resin-molded body including: a light emitting window, a white portion, and a black portion, wherein, in a top plan view of the light emitting device, the white portion surrounds the light emitting window, and the black portion surrounds the white portion; an electrode protruding from an outer surface of the resin-molded body; and a plurality of light emitting elements mounted in an area surrounded by the white portion, the plurality of light emitting elements including at least two light emitting elements that are different in type from one another.Type: ApplicationFiled: July 3, 2014Publication date: October 30, 2014Inventors: Takayuki IGARASHI, Ryo Oishi, Toshimasa Takao, Tetsuya Yagi
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Patent number: 8265764Abstract: An object is to provide an artificial vision system ensuring a wide field of view without damaging a retina. In the artificial vision system, a plurality of electrodes (23) are to be implanted so as to stick in an optic papilla of an eye of a patient. A signal for stimulation pulse is generated based on an image captured by an image pick up device (11) to be disposed outside a body of the patient. The electrical stimulation signals outputted from the electrodes (23) based on the signals for stimulation pulse stimulate an optic nerve of the eye, thereby enabling the patient to visually recognize the image from the image pickup device (11).Type: GrantFiled: December 4, 2003Date of Patent: September 11, 2012Assignees: Nidek Co., Ltd.Inventors: Yasuo Tano, Takashi Fujikado, Yutaka Fukuda, Tetsuya Yagi
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Publication number: 20120176730Abstract: An electric storage device includes an electric storage device body impregnated with an electrolyte solution, a sheath for hermetically sealing the electric storage device body, and a pressure regulator provided at the sheath. The pressure regulator includes a plurality of gas release mechanism portions. Further, the pressure regulator allows release of gases from an inside space of the sheath in which the electric storage device body exists to an outside space by causing the gases from the inside space to pass through the gas release mechanism portions in succession, and blocks entry of gases from the outside space to the inside space by the respective gas release mechanism portions. A buffer space is formed between the gas release mechanism portions by being partitioned by the gas release mechanism portions.Type: ApplicationFiled: January 5, 2012Publication date: July 12, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Daigo TAKEMURA, Tetsuya Yagi, Tatsunori Okada, Shuichi Matsumoto, Kenro Mitsuda
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Publication number: 20110268172Abstract: There is disclosed a receiver apparatus that can receive OFDM signals. The apparatus comprises: an FFT unit for transforming signals inputted to the apparatus into frequency-domain signals, thereby outputting the transformed signals on a complex symbol-by-complex symbol basis; correlation-calculating units each of which calculates an index indicating a correlation between complex symbols in a respective one of a plurality of groups, each of the plurality groups being a set of a plurality of complex symbols separated from each other by an interval in which a pilot signal is inserted, the groups being selected such that the complex symbols constituting the groups differing from each other; and a judging unit for determining, based on the calculated index for each group, whether or not any index satisfying a predetermined condition is existent, thereby outputting a result of the judgment.Type: ApplicationFiled: December 9, 2009Publication date: November 3, 2011Applicant: Panasonic CorporationInventors: Takaya Hayashi, Tetsuya Yagi
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Patent number: 7991058Abstract: An OFDM reception device detects a time at which impulse noise occurs in a received OFDM signal, and specifies a start position candidate period that does not have intersymbol interference and is estimated to have a guard interval signal in a symbol. When setting a FFT window of an effective symbol length in a symbol duration of each symbol, if the impulse noise occurrence time is included in the symbol, the OFDM reception device determines a start position of the FFT window within a range of the start position candidate period so as to exclude the impulse noise occurrence time as much as possible.Type: GrantFiled: December 21, 2005Date of Patent: August 2, 2011Assignee: Panasonic CorporationInventors: Koji Setoh, Ippei Kanno, Akira Kisoda, Daisuke Hayashi, Ryosuke Mori, Tetsuya Yagi, Noritaka Iguchi
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Patent number: 7865218Abstract: A receiving device performs reception in a service period of a broadcast signal and switches to a power saving mode in a non-service period. The service period is composed of a first period during which an application data table of an MPE-FEC frame is transmitted and a second period, following the first period, during which an RS data table of the MPE-FEC frame is transmitted. An error correction unit 12 performs one of error correction that uses the whole RS data table according to MPE-FEC, and erasure correction that uses a same number of parity bytes as bytes having bit errors. When the bit errors are corrected by the error correction unit 12 performing erasure correction, a power control unit 30 switches a receiving circuit to a power saving mode before the second period ends.Type: GrantFiled: December 2, 2005Date of Patent: January 4, 2011Assignee: Panasonic CorporationInventors: Noritaka Iguchi, Ryosuke Mori, Tetsuya Yagi, Koji Setoh, Daisuke Hayashi, Ippei Kanno
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Publication number: 20100275102Abstract: There is provided a signal demodulating device, including: a time frequency converting unit (6) for converting a frequency division multiplexing signal on a time axis into a signal on a frequency axis to output a data carrier, a pilot carrier, and a transmission control carrier; an equalizer (7) for equalizing the data carrier and the transmission control carrier according to a characteristic value of a transmission line obtained from the pilot carrier to output an equalized data carrier and an equalized transmission control carrier; a first decoding unit (9) for decoding the equalized transmission control carrier; and a first correcting unit (10) for performing first error-correction on an output of said first decoding unit (9) to output first control information and a first decoding flag that indicates a status of the first error-correction.Type: ApplicationFiled: October 28, 2008Publication date: October 28, 2010Inventors: Tetsuya Yagi, Takaya Hayashi, Kenichiro Hayashi, Tomohiro Kimura
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Patent number: 7715886Abstract: The present invention aims to provide a reception apparatus that receives and demodulates a signal transmitted by using time-division multiplexing, with reduced power consumption. In detail, a receiving unit including a tuner operates to receive a signal only during a time period for which a desired signal is transmitted. The received signal is converted into digital data, and the digital data is stored into a memory. With the use of the digital data stored in the memory, a PLL performs all of the necessary operations from synchronization establishment to demodulation.Type: GrantFiled: May 11, 2005Date of Patent: May 11, 2010Assignee: Panasonic CorporationInventors: Ippei Kanno, Ryosuke Mori, Daisuke Hayashi, Kouji Setoh, Tetsuya Yagi, Noritaka Iguchi
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Patent number: D647069Type: GrantFiled: November 4, 2010Date of Patent: October 18, 2011Assignee: Nichia CorporationInventors: Toshimasa Takao, Tetsuya Yagi
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Patent number: D661262Type: GrantFiled: April 26, 2010Date of Patent: June 5, 2012Assignee: Nichia CorporationInventors: Takayuki Igarashi, Ryo Oishi, Toshimasa Takao, Tetsuya Yagi
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Patent number: D715233Type: GrantFiled: April 12, 2012Date of Patent: October 14, 2014Assignee: Nichia CorporationInventors: Toshimasa Takao, Tetsuya Yagi