Patents by Inventor Yuki Seo
Yuki Seo 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: 20240070590Abstract: An analyzing apparatus (2000) acquires a target data set (10) and division number information (30). The target data set (10) is a set of target data (20) each indicating a pair of factor data (22) and result data (24). The division number information (30) indicates a division number being a number for dividing a numerical range of the factor data (22). The analyzing apparatus (2000) computes a plurality of boundary values for dividing the numerical range of the factor data (22) into a range of the division number. Further, the analyzing apparatus (2000) computes, for each boundary value, a test statistical quantity representing a difference relating to the result data (24) for two samples to be acquired by dividing the target data set (10) into two parts at the boundary value. Then, the analyzing apparatus (2000) generates test statistical quantity information (40) indicating a plurality of test statistical quantities computed for the each boundary value.Type: ApplicationFiled: October 30, 2020Publication date: February 29, 2024Applicant: NEC CorporationInventors: Ryutaro SEO, Kazuto OHISHI, Yuki KOMIYAMA
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Publication number: 20230314244Abstract: A force sensor device 1, which is to be coupled to a first coupling counterpart 61 in a direction of a predetermined axis, includes: a sensor chip 110 that detects a moment around the predetermined axis; and a first coupling portion 40 including a first contact face 44, where the first contact face 44 is to face the first coupling counterpart 61 in the direction of the predetermined axis and is to contact the first coupling counterpart 61. An arithmetic average surface roughness Sa of the first contact face 44 is 3.0 or higher.Type: ApplicationFiled: March 9, 2023Publication date: October 5, 2023Inventor: Yuki SEO
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Patent number: 11735112Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: GrantFiled: July 14, 2021Date of Patent: August 22, 2023Assignee: Sony Group CorporationInventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Patent number: 11218150Abstract: An electronic circuit that includes a plurality of first drivers coupled in parallel, the first drivers each including transistors coupled in series and transmitting data at a predetermined communication speed, and a second driver that includes transistors coupled in series and transmitting data at a communication speed lower than the communication speed of the first driver. The number of first drivers operating in parallel is sufficient for output impedance of the first drivers to meet a predetermined standard through application of an electrical potential to bodies of the transistors of the first drivers. The electrical potential causes an output level of the second driver to meet a predetermined standard.Type: GrantFiled: September 19, 2018Date of Patent: January 4, 2022Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Yuki Seo, Yoshifumi Miyajima, Zhiwei Zhou
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Patent number: 11176885Abstract: A display device includes a pixel array unit in which pixel circuits are disposed in a matrix form, the pixel circuits each including a light emission unit, a write transistor that writes a signal voltage of a video signal, a retention capacitor that retains the signal voltage written by the write transistor, and a drive transistor that drives the light emission unit on the basis of the signal voltage retained by the retention capacitor; and a common line that is wired along a pixel row, for each pixel row. The pixel circuit includes a switching transistor which selectively connects the common line and a source electrode of the drive transistor.Type: GrantFiled: August 31, 2015Date of Patent: November 16, 2021Assignee: Sony Group CorporationInventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Publication number: 20210343244Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: ApplicationFiled: July 14, 2021Publication date: November 4, 2021Inventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Publication number: 20200358442Abstract: [Problem] Provided is an electronic circuit that is able to avoid the influence on the output level of the driver for low-speed communication due to a decrease in the voltage of the driver for high-speed communication in an interface for interconnection of devices in the electronic apparatus. [Solution] An electronic circuit includes a plurality of first drivers coupled in parallel, the first drivers each including transistors coupled in series and transmitting data at a predetermined communication speed; and a second driver including transistors coupled in series and transmitting data at a communication speed lower than the communication speed of the first driver. The number of first drivers operating in parallel is sufficient for output impedance of the first drivers to meet a predetermined standard through application of an electrical potential to bodies of the transistors of the first drivers. The electrical potential causes an output level of the second driver to meet a predetermined standard.Type: ApplicationFiled: September 19, 2018Publication date: November 12, 2020Inventors: YUKI SEO, YOSHIFUMI MIYAJIMA, ZHIWEI ZHOU
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Publication number: 20200051505Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: ApplicationFiled: October 17, 2019Publication date: February 13, 2020Inventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Patent number: 10475387Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: GrantFiled: November 1, 2018Date of Patent: November 12, 2019Assignee: Sony CorporationInventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Publication number: 20190073959Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: ApplicationFiled: November 1, 2018Publication date: March 7, 2019Inventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Patent number: 10140924Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: GrantFiled: August 31, 2015Date of Patent: November 27, 2018Assignee: Sony CorporationInventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Patent number: 9953562Abstract: Provided is a signal processing device including a signal synthesis unit that generates a first synthesis signal configured from an image signal to cause a first light emitting element used for displaying an image to emit light and a dummy pixel signal to cause a second light emitting element used for measuring brightness to emit light, a conversion unit that converts the generated first synthesis signal into a second synthesis signal to cause only the first light emitting element of the first light emitting element and the second light emitting element to emit light at identical brightness, regardless of a degradation degree of the first light emitting element, and a light emission control unit that causes the first light emitting element and the second light emitting element to emit light, on a basis of the second synthesis signal.Type: GrantFiled: November 8, 2012Date of Patent: April 24, 2018Assignee: JOLED Inc.Inventors: Junichi Yamashita, Katsuhide Uchino, Yuki Seo
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Publication number: 20170337874Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits (20A) each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), and a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24); and a common line (35) that is wired along a pixel row, for each pixel row. The pixel circuit (20A) includes a switching transistor (26) which selectively connects the common line (35) and a source electrode of the drive transistor (22).Type: ApplicationFiled: August 31, 2015Publication date: November 23, 2017Inventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Publication number: 20170287402Abstract: A display device according to the present disclosure includes: a pixel array unit (30) in which pixel circuits (20A) are disposed in a matrix form, the pixel circuits each including a light emission unit (21), a write transistor (23) that writes a signal voltage (Vsig) of a video signal, a retention capacitor (24) that retains the signal voltage (Vsig) written by the write transistor (23), a drive transistor (22) that drives the light emission unit (21) on the basis of the signal voltage (Vsig) retained by the retention capacitor (24), and an auxiliary capacitor (25) of which one terminal is connected to a source node of the drive transistor (22); and a control unit (90) that provides a potential change to a source electrode of the drive transistor (22) by coupling through the auxiliary capacitor (25) to set an operation point of the drive transistor (22) as a cut-off region after the threshold value correction process.Type: ApplicationFiled: August 31, 2015Publication date: October 5, 2017Inventors: Naobumi Toyomura, Katsuhide Uchino, Yuki Seo
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Publication number: 20150154937Abstract: A color signal processing circuit of the present disclosure includes: a correction signal generation unit which generates, on the basis of a signal level of a color signal corresponding to one primary color among color signals corresponding to a plurality of primary colors being input, a correction signal for chromaticity of a color signal corresponding to another primary color as a difference value from a signal level of each color signal corresponding to predetermined chromaticity; and a correction unit which uses the correction signal generated by the correction signal generation unit to correct the color signal corresponding to the other primary color.Type: ApplicationFiled: June 20, 2013Publication date: June 4, 2015Applicant: SONY CORPORATIONInventors: Yohei Funatsu, Yasuo Inoue, Tomoya Yano, Ryo Ogawa, Shoji Araki, Hidehisa Shimizu, Tetsuro Yamamoto, Yuki Seo, Takashi Uchida
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Publication number: 20140368556Abstract: A display apparatus includes: a display unit that includes a display area including display elements arranged in a two-dimensional matrix and is configured to display an image in the display area based on a video signal; and a correction signal generation unit configured to generate a correction signal that accelerates a change with time for a display element having a small change with time and performs a slowdown or a stop of the change with time for a display element having a large change with time, based on a value of the video signal and time-varying characteristics of a luminance of each display element. When the display apparatus is not used after a normal image is displayed based on the video signal, a corrected image based on the correction signal is displayed to equalize a degree of the change with time of each display element.Type: ApplicationFiled: June 4, 2014Publication date: December 18, 2014Inventors: Yohei Funatsu, Hidehisa Shimizu, Shoji Araki, Yuki Seo
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Publication number: 20140267465Abstract: Provided is a signal processing device including a signal synthesis unit that generates a first synthesis signal configured from an image signal to cause a first light emitting element used for displaying an image to emit light and a dummy pixel signal to cause a second light emitting element used for measuring brightness to emit light, a conversion unit that converts the generated first synthesis signal into a second synthesis signal to cause only the first light emitting element of the first light emitting element and the second light emitting element to emit light at identical brightness, regardless of a degradation degree of the first light emitting element, and a light emission control unit that causes the first light emitting element and the second light emitting element to emit light, on a basis of the second synthesis signal.Type: ApplicationFiled: November 8, 2012Publication date: September 18, 2014Applicant: SONY CORPORATIONInventors: Junichi Yamashita, Katsuhide Uchino, Yuki Seo
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Patent number: 8766959Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.Type: GrantFiled: October 2, 2013Date of Patent: July 1, 2014Assignee: Sony CorporationInventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo
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Publication number: 20140028642Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.Type: ApplicationFiled: October 2, 2013Publication date: January 30, 2014Applicant: SONY CORPORATIONInventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo
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Patent number: 8581889Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.Type: GrantFiled: February 24, 2010Date of Patent: November 12, 2013Assignee: Sony CorporationInventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo