Patents by Inventor Hiroyuki Furukawa
Hiroyuki Furukawa 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: 11959560Abstract: The Disclosed is a solenoid valve, in which a rod is moved by a plunger that comes into contact with and separates from a stator by electromagnetic force, causing a valve body that opens and closes a valve to move reciprocally. The valve is configured such that a first space and a second space are formed at respective sides of the plunger in the movement direction thereof, a through-hole is formed in the plunger so as to be concentric with a center axis, the rod is arranged in the first space, and a communication passage is formed between an inner surface of the plunger and an outer surface of the rod and communicates with the first space S1 and the second space.Type: GrantFiled: April 28, 2020Date of Patent: April 16, 2024Assignee: EAGLE INDUSTRY CO., LTD.Inventors: Hiroyuki Iwanaga, Yoshinari Kasagi, Kenta Furukawa
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Patent number: 11908361Abstract: The display device is provided with a degree-of-degradation calculating circuit that determines a degree of degradation representing a level of degradation of a compensation-target circuit element included in each of K pixel circuits which are some or all of a plurality of pixel circuits; a variation coefficient calculating circuit that calculates, as a variation coefficient, a value depending on a deviation determined based on degrees of degradation of the K pixel circuits; a reference luminance setting circuit that sets, based on the variation coefficient, reference luminance for determining display luminance of each display element after degradation compensation; and a compensation computing circuit that compensates for degradation of the compensation-target circuit elements by correcting input video signals based on the reference luminance and the degree of degradation of each of the K pixel circuits, upon generating video signals to be supplied to the plurality of pixel circuits.Type: GrantFiled: October 8, 2020Date of Patent: February 20, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Furukawa, Chie Toridono, Masafumi Ueno
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Patent number: 11902167Abstract: An object is to provide a communication apparatus, a communication method, and a program capable of avoiding an increase in network load when input traffic continues to be large and a communication delay when input traffic is very small. A communication apparatus according to the present invention prepares three token buckets and can transfer, discard, or hold a packet in accordance with the amount of tokens in each token bucket. This enables the communication apparatus to operate so as not to exceed a set maximum bandwidth when large traffic is received for the delay guarantee shaping. Further, When the maximum bandwidth is exceeded, the communication apparatus can select whether to discard a packet to prioritize a delay guarantee or to hold a packet to prioritize no loss of packets. Furthermore, the communication apparatus can immediately transmit a packet without increasing a communication delay when input traffic is very small.Type: GrantFiled: July 4, 2019Date of Patent: February 13, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tatsuya Fukui, Katsuya Minami, Yuki Sakaue, Hiroyuki Furukawa
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Publication number: 20230368708Abstract: The display device is provided with a degree-of-degradation calculating circuit that determines a degree of degradation representing a level of degradation of a compensation-target circuit element included in each of K pixel circuits which are some or all of a plurality of pixel circuits; a variation coefficient calculating circuit that calculates, as a variation coefficient, a value depending on a deviation determined based on degrees of degradation of the K pixel circuits; a reference luminance setting circuit that sets, based on the variation coefficient, reference luminance for determining display luminance of each display element after degradation compensation; and a compensation computing circuit that compensates for degradation of the compensation-target circuit elements by correcting input video signals based on the reference luminance and the degree of degradation of each of the K pixel circuits, upon generating video signals to be supplied to the plurality of pixel circuits.Type: ApplicationFiled: October 8, 2020Publication date: November 16, 2023Inventors: Hiroyuki FURUKAWA, Chie TORIDONO, Masafumi UENO
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Patent number: 11763732Abstract: A display device includes: a light-emitting profile creation circuit creating a first light-emitting profile from a first image signal; and an image signal adjustment circuit adjusting a second image signal in accordance with the first light-emitting profile.Type: GrantFiled: June 25, 2019Date of Patent: September 19, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Furukawa, Masafumi Ueno, Naoto Inoue, Chie Toridono
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Patent number: 11711150Abstract: An object is to provide an optical communication system and an optical communication method that are capable of, when assigning wavelengths on a per-service basis and providing services on a per-area basis, preventing degradation of signal quality due to linear crosstalk and preventing an increase in cost and size. An optical communication system according to the present invention includes an optical splitter 300 connecting N first ports and M second ports by a combination of 2×2 fiber optical splitters, N and M each being an integer of two or more, where wavelengths of optical signals to be received are limited for each group of optical receivers 106, by using a correlation between a fused extension length of at least one 2×2 fiber optical splitter directly connected to the first port, among the 2×2 fiber optical splitters, and wavelength output characteristics of the second port of the optical splitter 300.Type: GrantFiled: March 6, 2020Date of Patent: July 25, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsuko Kawakita, Kazutaka Hara, Yasutaka Kimura, Kenji Horikawa, Hiroyuki Furukawa
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Patent number: 11689311Abstract: An object is to provide an optical communication system capable of controlling the output ratio by port and by wavelength for incident light of different wavelengths, a method of determining the split ratio of an uneven-split optical splitter for controlling the output ratio by port and by wavelength, and a transmission range determination method for the optical communication system. The split ratio determination method for an uneven-split optical splitter according to the present invention uses the melt-draw distance to adjust the split ratio of each fiber-optic splitter included in the uneven-split optical splitter such that the light output from the farthest ONUs among each of the ports connected under the ports B to M of the uneven-split optical splitter arrives with the minimum reception sensitivity at OLT receivers in a PON system.Type: GrantFiled: March 6, 2020Date of Patent: June 27, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsuko Kawakita, Kazutaka Hara, Yasutaka Kimura, Kenji Horikawa, Hiroyuki Furukawa
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Patent number: 11635837Abstract: A display device includes: a temperature distribution obtaining circuit obtaining temperature distribution on a display panel on a basis of a capacitance value signal to be output from a capacitive touch panel overlapping the display panel; and a correcting circuit correcting an input image signal on a basis of the temperature distribution on the display panel, and supplying the input image signal.Type: GrantFiled: March 22, 2022Date of Patent: April 25, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Furukawa, Chie Toridono, Masafumi Ueno
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Publication number: 20230083342Abstract: Provided are a wire electric discharge machine, a correction device, and a correction method which accurately correct position information indicating the position of a supporting point of each of an upper guide and a lower guide. The correction device includes: a storage unit that stores the position information; an inclination control unit that causes a wire electrode to incline at a predetermined angle; a measurement unit that measures a relative movement amount from a state in which the lower guide and a measurement site are separated by a predetermined distance in a relative movement direction to a state in which the wire electrode inclined at the predetermined angle reaches the measurement site; and an information, correction unit that corrects the position information of the storage unit on the basis of the predetermined angle and the relative movement amount.Type: ApplicationFiled: February 19, 2021Publication date: March 16, 2023Inventors: Tomohito OOSAWA, Hiroyuki FURUKAWA
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Patent number: 11602146Abstract: A connector (1) includes: a tube (10) configured to be arranged in an interior of a vascular channel; a tubular body (30) having an inner wall surface configured to, together with an outer wall surface of the tube (10), sandwich the vascular channel when the tube (10) is arranged in the interior of the vascular channel; and a balloon (20), configured to be arranged on the outer wall surface of the tube (10) or the inner wall surface of the tubular body (30), and radially expand for performing sealing (i) between the soft tubular member and the inner wall surface of the tubular body (30) and (ii) between the soft tubular member and the outer wall surface of the tube (10). A fluid supply system (100) may include the connector (1), and a perfusion solution supply device (120) connected to the connector (1) and configured to supply a perfusion solution into the interior of the vascular channel.Type: GrantFiled: March 15, 2018Date of Patent: March 14, 2023Assignees: National University Corporation Kitami Institute of Technology, National University Corporation Asahikawa Medical UniversityInventors: Masanori Matsumura, Naoto Matsuno, Jun-Ichi Shibano, Yutaka Yoshida, Michihiro Sato, Hiroyuki Furukawa
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Publication number: 20230006000Abstract: A display device includes: a first subpixel including a quantum dot light-emitting layer configured to emit light of a first color: a second subpixel including a quantum dot light-emitting layer configured to emit light of a second color different from the light of the first color: a third subpixel including a quantum dot light-emitting layer configured to emit light of a third color different from the light of the first color and the light of the second color: and a data processing circuit configured to receive a first input data corresponding to the first subpixel, a second input data corresponding to the second subpixel, and a third input data corresponding to the third subpixel. The data processing circuit generates first output data corresponding to a first data voltage supplied to the first subpixel by using the first input data, the second input data, and the third input data.Type: ApplicationFiled: December 12, 2019Publication date: January 5, 2023Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO, YOSHIHIRO UETA
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Publication number: 20220360534Abstract: An object is to provide a communication apparatus, a communication method, and a program capable of avoiding an increase in network load when input traffic continues to be large and a communication delay when input traffic is very small. A communication apparatus according to the present invention prepares three token buckets and can transfer, discard, or hold a packet in accordance with the amount of tokens in each token bucket. This enables the communication apparatus to operate so as not to exceed a set maximum bandwidth when large traffic is received for the delay guarantee shaping. Further, When the maximum bandwidth is exceeded, the communication apparatus can select whether to discard a packet to prioritize a delay guarantee or to hold a packet to prioritize no loss of packets. Furthermore, the communication apparatus can immediately transmit a packet without increasing a communication delay when input traffic is very small.Type: ApplicationFiled: July 4, 2019Publication date: November 10, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tatsuya FUKUI, Katsuya MINAMI, Yuki SAKAUE, Hiroyuki FURUKAWA
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Publication number: 20220319402Abstract: A display device includes: a light-emitting profile creation circuit creating a first light-emitting profile from a first image signal; and an image signal adjustment circuit adjusting a second image signal in accordance with the first light-emitting profile.Type: ApplicationFiled: June 25, 2019Publication date: October 6, 2022Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, NAOTO INOUE, Chie TORIDONO
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Publication number: 20220317818Abstract: A display device includes: a temperature distribution obtaining circuit obtaining temperature distribution on a display panel on a basis of a capacitance value signal to be output from a capacitive touch panel overlapping the display panel; and a correcting circuit correcting an input image signal on a basis of the temperature distribution on the display panel, and supplying the input image signal.Type: ApplicationFiled: March 22, 2022Publication date: October 6, 2022Inventors: HIROYUKI FURUKAWA, Chie TORIDONO, MASAFUMI UENO
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Patent number: 11462144Abstract: A display device is implemented that can more efficiently compensate for degradation of drive transistors by promptly determining an average degradation level of the drive transistors on the entire screen. The display device is provided with a total current measuring circuit (50) that measures, as a total current, drive currents flowing through all of a plurality of pixel circuits or two or more pixel circuits in a state where a specific image is displayed; a determination data storage unit (110) that holds determination data used to determine whether to perform characteristics detection monitoring for detecting characteristics of the drive transistors; and a determining unit (120) that determines whether to perform the characteristics detection monitoring, based on the total current and the determination data.Type: GrantFiled: September 28, 2018Date of Patent: October 4, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Furukawa, Masafumi Ueno
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Patent number: 11430387Abstract: In a display device that performs external compensation, pixel circuits are classified into specific and general pixel circuits. When display is restarted, a current measurement circuit, along with a drive circuit, measures a current flowing through a drive transistor in the specific pixel circuit as a first current. A correction circuit obtains a recovery ratio for a characteristic of the drive transistor on the basis of an amount of the first current and corrects a video signal for each of the specific and general pixel circuits using the recovery ratio. Thus, when display is restarted, a suitably compensated image is displayed.Type: GrantFiled: March 29, 2019Date of Patent: August 30, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Furukawa, Masafumi Ueno, Chie Toridono
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Publication number: 20220228140Abstract: An object of the present invention is to provide a compound, a method and a pharmaceutical composition for normalizing double homeobox 4 (DUX4) of an individual in which the DUX4 gene has abnormally expressed. Provided is a modified oligonucleotide consisting of 12-30 residues. The modified oligonucleotide includes a nucleobase sequence that includes at least 8 contiguous nucleobase sequences and is complementary to an equal length portion at positions 126-147, 232-248, 1306-1325 or 1472-1495 from a 5? end of a nucleobase of a mature mRNA of DUX4 of SEQ ID NO: 1. The nucleobase sequence of the modified oligonucleotide has at least 90% complementarity to the equal length portion in the nucleobase sequence of the mature mRNA of DUX4 of SEQ ID NO: 1.Type: ApplicationFiled: March 27, 2020Publication date: July 21, 2022Applicant: MITSUBISHI TANABE PHARMA CORPORATIONInventors: Shinji KUMAGAI, Takashi YASHIRO, Tomo ARAKI, Takayuki KANAGAWA, Chieko OKAGAKI, Hiroyuki FURUKAWA
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Publication number: 20220173813Abstract: An object is to provide an optical communication system and an optical communication method that are capable of, when assigning wavelengths on a per-service basis and providing services on a per-area basis, preventing degradation of signal quality due to linear crosstalk and preventing an increase in cost and size. An optical communication system according to the present invention includes an optical splitter 300 connecting N first ports and M second ports by a combination of 2×2 fiber optical splitters, N and M each being an integer of two or more, where wavelengths of optical signals to be received are limited for each group of optical receivers 106, by using a correlation between a fused extension length of at least one 2×2 fiber optical splitter directly connected to the first port, among the 2×2 fiber optical splitters, and wavelength output characteristics of the second port of the optical splitter 300.Type: ApplicationFiled: March 6, 2020Publication date: June 2, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsuko KAWAKITA, Kazutaka HARA, Yasutaka KIMURA, Kenji HORIKAWA, Hiroyuki FURUKAWA
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Publication number: 20220166532Abstract: An object is to provide an optical communication system capable of controlling the output ratio by port and by wavelength for incident light of different wavelengths, a method of determining the split ratio of an uneven-split optical splitter for controlling the output ratio by port and by wavelength, and a transmission range determination method for the optical communication system. The split ratio determination method for an uneven-split optical splitter according to the present invention uses the melt-draw distance to adjust the split ratio of each fiber-optic splitter included in the uneven-split optical splitter such that the light output from the farthest ONUs among each of the ports connected under the ports B to M of the uneven-split optical splitter arrives with the minimum reception sensitivity at OLT receivers in a PON system.Type: ApplicationFiled: March 6, 2020Publication date: May 26, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsuko KAWAKITA, Kazutaka HARA, Yasutaka KIMURA, Kenji HORIKAWA, Hiroyuki FURUKAWA
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Publication number: 20220157240Abstract: In a display device that performs external compensation, pixel circuits are classified into specific and general pixel circuits. When display is restarted, a current measurement circuit, along with a drive circuit, measures a current flowing through a drive transistor in the specific pixel circuit as a first current. A correction circuit obtains a recovery ratio for a characteristic of the drive transistor on the basis of an amount of the first current and corrects a video signal for each of the specific and general pixel circuits using the recovery ratio. Thus, when display is restarted, a suitably compensated image is displayed.Type: ApplicationFiled: March 29, 2019Publication date: May 19, 2022Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO