Patents by Inventor Yuichiro Nakata
Yuichiro Nakata 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: 11917306Abstract: Provided is an electronic device that decreases a width of a bezel, and restricts a decrease in an image quality of an image captured with a camera. The electronic device includes: a displaying unit; and a capture unit arranged on a side opposite a displaying surface of the displaying unit. The capture unit includes: a plurality of photoelectric-conversion units that converts light that has been made to enter through the displaying unit into electricity; and a plurality of polarization elements arranged on a light entering side of at least one photoelectric-conversion unit of the plurality of photoelectric-conversion units.Type: GrantFiled: February 25, 2021Date of Patent: February 27, 2024Assignee: Sony Semiconductor Solutions CorporationInventors: Masashi Nakata, Tomohiro Yamazaki, Junichi Kanai, Yuichiro Baba
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Patent number: 11058311Abstract: A light emitting unit emits light including first light and second light. A light receiving unit outputs a signal of a level in accordance with intensity of incoming light. A first optical sensor is configured to outputs a first signal of a level in accordance with intensity of the first light entering the light receiving unit. A second optical sensor outputs a second signal of a level in accordance with intensity of the second light entering the light receiving unit. Based on the second signal, a controller determines whether or not the living body information sensor and a surface of the living body are in close contact with each other. The controller generates the information related to the living body based on the first signal obtained when the living body information sensor and the surface of the living body are in close contact with each other.Type: GrantFiled: April 1, 2016Date of Patent: July 13, 2021Assignee: Rohm Co., Ltd.Inventors: Yuichiro Nakata, Yoshitsugu Uedaira
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Patent number: 11024416Abstract: A tomographic image processing device that includes an input unit configured to input a tomographic image of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the processor to execute: acquiring a tomographic image of a normal eye; acquiring a tomographic image of an eye having an abnormal portion; extracting a feature amount of the abnormal portion by using machine learning from the tomographic image of the normal eye and the tomographic image of the eye having the abnormal portion; acquiring a tomographic image of the subject eye inputted to the input unit; and determining whether the tomographic image of the subject eye includes an abnormal portion based on the feature amount.Type: GrantFiled: May 14, 2019Date of Patent: June 1, 2021Assignee: TOMEY CORPORATIONInventors: Satoshi Sugiyama, Yuichiro Nakata, Nobuyori Aoki
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Publication number: 20190355466Abstract: A tomographic image processing device that includes an input unit configured to input a tomographic image of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the processor to execute: acquiring a tomographic image of a normal eye; acquiring a tomographic image of an eye having an abnormal portion; extracting a feature amount of the abnormal portion by using machine learning from the tomographic image of the normal eye and the tomographic image of the eye having the abnormal portion; acquiring a tomographic image of the subject eye inputted to the input unit; and determining whether the tomographic image of the subject eye includes an abnormal portion based on the feature amount.Type: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Inventors: Satoshi Sugiyama, Yuichiro Nakata, Nobuyori Aoki
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Publication number: 20180125381Abstract: A light emitting unit emits light including first light and second light. A light receiving unit outputs a signal of a level in accordance with intensity of incoming light. A first optical sensor is configured to outputs a first signal of a level in accordance with intensity of the first light entering the light receiving unit. A second optical sensor outputs a second signal of a level in accordance with intensity of the second light entering the light receiving unit. Based on the second signal, a controller determines whether or not the living body information sensor and a surface of the living body are in close contact with each other. The controller generates the information related to the living body based on the first signal obtained when the living body information sensor and the surface of the living body are in close contact with each other.Type: ApplicationFiled: April 1, 2016Publication date: May 10, 2018Inventors: Yuichiro Nakata, Yoshitsugu Uedaira
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Publication number: 20180058978Abstract: A lensmeter includes a light emission portion, a light reception portion, a storage unit, a display unit and a display control unit. The light emission portion emits light so as to radiate the light onto a lens-to-be-inspected. The light reception portion receives the light transmitted through the lens-to-be-inspected to measure an optical characteristic of the lens-to-be-inspected. The storage unit stores a measured value of the optical characteristic of the lens-to-be-inspected. The display unit displays the measured value of the optical characteristic of the lens-to-be-inspected stored in the storage unit. The display control unit causes the display unit to display a target pattern including at least two different colors, and changes the target pattern in accordance with the measured value stored in the storage unit.Type: ApplicationFiled: August 18, 2017Publication date: March 1, 2018Applicant: Tomey CorporationInventors: Yuichiro NAKATA, Chihiro KATO, Nobuyori AOKI, Guangchun BIAN, Koji YAMAGISHI, Yoshito GOTO
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Publication number: 20180052075Abstract: A lensmeter includes a light emission portion configured to emit light so as to radiate the light onto a lens-to-be-inspected, and a light reception portion configured to receive the light transmitted through the lens-to-be-inspected to measure an optical characteristic of the lens-to-be-inspected. The light emission portion includes a measurement light source configured to emit green light or red light for measurement of refractive power of the lens-to-be-inspected, a first inspection light source configured to emit ultraviolet light, and a second inspection light source configured to emit blue light. The light reception portion is configured to selectively receive lights from the measurement light source, the first inspection light source and the second inspection light source respectively.Type: ApplicationFiled: August 14, 2017Publication date: February 22, 2018Applicant: Tomey CorporationInventors: Takeshi SENO, Chihiro KATO, Yuichiro NAKATA, Nobuyori AOKI, Guangchun BIAN, Makoto TSUKAMOTO
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Patent number: 9632543Abstract: Disclosed is a mobile device comprising an acceleration detection unit for detecting acceleration relative to the device; a condition identification unit; and a power supply controller which determines, from a combination of the output of the acceleration detection unit and the output of the condition identification unit, whether or not to begin to supply power to the device.Type: GrantFiled: December 2, 2014Date of Patent: April 25, 2017Assignee: Rohm Co., Ltd.Inventors: Yoshihiro Tada, Yuichiro Nakata, Junji Fujino, Yoshitsugu Uedaira, Nobuyuki Yamada, Takeshi Yoshida, Masahide Tanaka
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Patent number: 9568361Abstract: An optical sensor device includes at least two light receiving units in which a plurality of types of light receiving elements is integrated in the same vertical structure. In addition, the optical sensor device further includes a switch unit configured to select at least one of the light receiving elements in each of the light receiving units in a time-division manner.Type: GrantFiled: September 24, 2014Date of Patent: February 14, 2017Assignee: Rohm Co., Ltd.Inventors: Yuichiro Nakata, Yoshitsugu Uedaira
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Patent number: 9029771Abstract: Disclosed is a semiconductor device, comprising a driver that causes first through third infrared LEDs to emit light sequentially at prescribed times; an infrared light sensor that receives infrared light that is emitted by the first through the third infrared LEDs and reflected by a reflecting object, and generates photoelectric currents at levels corresponding to the intensity of the received infrared light; an amplifier that generates first through third infrared light information, on the basis of the photoelectric current that is generated by the infrared light sensor, and which denote the intensity of the infrared light; an A/D converter; and a linear/logarithmic converter apparatus. It is thus possible to sense the movement of the reflecting object on the basis of the first through the third infrared light information.Type: GrantFiled: December 20, 2010Date of Patent: May 12, 2015Assignee: Rohm Co., Ltd.Inventors: Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Publication number: 20150084904Abstract: Disclosed is a mobile device comprising an acceleration detection unit for detecting acceleration relative to the device; a condition identification unit; and a power supply controller which determines, from a combination of the output of the acceleration detection unit and the output of the condition identification unit, whether or not to begin to supply power to the device.Type: ApplicationFiled: December 2, 2014Publication date: March 26, 2015Inventors: Yoshihiro Tada, Yuichiro Nakata, Junji Fujino, Yoshitsugu Uedaira, Nobuyuki Yamada, Takeshi Yoshida, Masahide Tanaka
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Publication number: 20150083915Abstract: An optical sensor device includes at least two light receiving units in which a plurality of types of light receiving elements is integrated in the same vertical structure. In addition, the optical sensor device further includes a switch unit configured to select at least one of the light receiving elements in each of the light receiving units in a time-division manner.Type: ApplicationFiled: September 24, 2014Publication date: March 26, 2015Inventors: Yuichiro Nakata, Yoshitsugu Uedaira
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Patent number: 8675008Abstract: The calculation device (36) according to the present invention receives a plurality of reflected light intensity information for indicating the intensity of each reflected light which reaches a single light receiver via a reflecting object, the reflected light having been emitted in sequence from a plurality of light emitters (31 through 33) provided in mutually different positions, computes a phase difference of an intensity variation which occurs among the reflected light, and determines a movement of the reflecting object on the basis of the calculation result.Type: GrantFiled: April 14, 2011Date of Patent: March 18, 2014Assignee: Rohm Co., Ltd.Inventors: Takuya Tsuchikawa, Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Patent number: 8513892Abstract: In an illuminance sensor, a photoelectric converter (1) includes three photosensors (PS), and each photosensor (PS) outputs a current as a difference between photocurrents generated in two photodiodes (PDA, PDB) having different light reception characteristics. Ratios between light receiving areas of the two photodiodes (PDA, PDB) in the three photosensors (PS) are different from each other, and the sum of positive currents among output currents of the three photosensors (PS) is constant for a given illuminance, regardless of the type of light source. A computation control unit (7) obtains illuminance based on the sum of the positive currents among the output currents of the three photosensors (PS).Type: GrantFiled: March 23, 2010Date of Patent: August 20, 2013Assignee: Rohm Co., Ltd.Inventors: Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Publication number: 20120286162Abstract: Disclosed is a semiconductor device, comprising a driver that causes first through third infrared LEDs to emit light sequentially at prescribed times; an infrared light sensor that receives infrared light that is emitted by the first through the third infrared LEDs and reflected by a reflecting object, and generates photoelectric currents at levels corresponding to the intensity of the received infrared light; an amplifier that generates first through third infrared light information, on the basis of the photoelectric current that is generated by the infrared light sensor, and which denote the intensity of the infrared light; an A/D converter; and a linear/logarithmic converter apparatus. It is thus possible to sense the movement of the reflecting object on the basis of the first through the third infrared light information.Type: ApplicationFiled: December 20, 2010Publication date: November 15, 2012Applicant: ROHM CO., LTD.Inventors: Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Publication number: 20120206414Abstract: Disclosed is a mobile device comprising an acceleration detection unit for detecting acceleration relative to the device; a condition identification unit; and a power supply controller which determines, from a combination of the output of the acceleration detection unit and the output of the condition identification unit, whether or not to begin to supply power to the device.Type: ApplicationFiled: October 15, 2010Publication date: August 16, 2012Applicant: ROHM CO., LTD.Inventors: Yoshihiro Tada, Yuichiro Nakata, Junji Fujino, Yoshitsugu Uedaira, Nobuyuki Yamada, Takeshi Yoshida, Masahide Tanaka
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Publication number: 20110260629Abstract: In an illuminance sensor, a photoelectric converter (1) includes three photosensors (PS), and each photosensor (PS) outputs a current as a difference between photocurrents generated in two photodiodes (PDA, PDB) having different light reception characteristics. Ratios between light receiving areas of the two photodiodes (PDA, PDB) in the three photosensors (PS) are different from each other, and the sum of positive currents among output currents of the three photosensors (PS) is constant for a given illuminance, regardless of the type of light source. A computation control unit (7) obtains illuminance based on the sum of the positive currents among the output currents of the three photosensors (PS).Type: ApplicationFiled: March 23, 2010Publication date: October 27, 2011Applicant: ROHM CO., LTD.Inventors: Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Publication number: 20110254864Abstract: The calculation device (36) according to the present invention receives a plurality of reflected light intensity information for indicating the intensity of each reflected light which reaches a single light receiver via a reflecting object, the reflected light having been emitted in sequence from a plurality of light emitters (31 through 33) provided in mutually different positions, computes a phase difference of an intensity variation which occurs among the reflected light, and determines a movement of the reflecting object on the basis of the calculation result.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Applicant: ROHM CO., LTD.Inventors: Takuya Tsuchikawa, Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
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Patent number: 8003930Abstract: In an ambient light sensor according to the present invention, a current amplification portion which amplifies a light current obtained by a light receiving portion to generate an output signal includes: a current amplification stage that has: a first current mirror amplifier which is composed of a bipolar transistor, and a second current mirror amplifier which is composed of a field effect transistor connected in parallel with the first current mirror amplifier; and a changeover control circuit which monitors an amplified current input into the current amplification stage, and performs changeover control of the first and second current mirror amplifiers according to a value of the amplified current.Type: GrantFiled: October 18, 2010Date of Patent: August 23, 2011Assignee: Rohm Co., Ltd.Inventors: Shinichi Otsuka, Yuichiro Nakata, Junji Fujino
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Publication number: 20110114825Abstract: In an ambient light sensor according to the present invention, a current amplification portion which amplifies a light current obtained by a light receiving portion to generate an output signal includes: a current amplification stage that has: a first current mirror amplifier which is composed of a bipolar transistor, and a second current mirror amplifier which is composed of a field effect transistor connected in parallel with the first current mirror amplifier; and a changeover control circuit which monitors an amplified current input into the current amplification stage, and performs changeover control of the first and second current mirror amplifiers according to a value of the amplified current.Type: ApplicationFiled: October 18, 2010Publication date: May 19, 2011Applicant: Rohm Co., Ltd.Inventors: Shinichi OTSUKA, Yuichiro NAKATA, Junji FUJINO