Patents by Inventor Akihiro Yoshida
Akihiro Yoshida 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: 12155411Abstract: An optical transmission apparatus includes an input unit, a demultiplexing unit, a measurement unit, and a switching unit. The input unit inputs a first multiplexed signal and a second multiplexed signal each obtained by multiplexing a plurality of optical signals having different wavelengths. The demultiplexing unit demultiplexes the first multiplexed signal and the second multiplexed signal by wavelength. The measurement unit measures qualities of a plurality of optical signals obtained by demultiplexing the first multiplexed signal and qualities of a plurality of optical signals obtained by demultiplexing the second multiplexed signal. The switching unit performs switching between the first multiplexed signal and the second multiplexed signal to be output to a subsequent stage based on a result of measurement by the measurement unit.Type: GrantFiled: March 13, 2020Date of Patent: November 26, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akihiro Tanabe, Takashi Mitsui, Toshiaki Shitaba, Tomoaki Yoshida
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Patent number: 12138915Abstract: There are provided a liquid jet head and so on capable of enhancing the reliability. A liquid jet head according to an embodiment of the present disclosure includes a jet section configured to jet liquid, at least one drive circuit configured to output a drive signal used to jet the liquid to the jet section, a differential input line configured to transmit data from an outside of the liquid jet head toward the drive circuit, a differential output line configured to transmit data from the drive circuit toward the outside of the liquid jet head, a coupling part which is arranged between the outside of the liquid jet head and the drive circuit, and to which the differential input line and the differential output line are individually coupled, and a detection circuit configured to perform detection of a coupling state in the coupling part using a transmission signal in at least one of the differential output line and the differential input line.Type: GrantFiled: February 15, 2023Date of Patent: November 12, 2024Assignee: SII PRINTEK INC.Inventors: Kensuke Yoshida, Akihiro Itagi
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Publication number: 20240356654Abstract: There is provided a signal amplification method executed by an optical reception device, the method including: an electrical conversion step of converting an optical intensity modulation signal according to a frequency modulation signal which is converted from a frequency division multiplexing signal into the frequency modulation signal; a delay control step of controlling a delay amount of the frequency modulation signal based on a center frequency of the frequency modulation signal and a shift amount of a highest frequency of the frequency modulation signal; a delay detection step of demodulating the frequency modulation signal into the frequency division multiplexing signal by executing demodulation processing based on delay detection on the frequency modulation signal of which the delay amount is controlled; an amplification factor derivation step of deriving an amplification factor of the demodulated frequency division multiplexing signal based on the delay amount; and an amplification step of amplifyingType: ApplicationFiled: August 25, 2021Publication date: October 24, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Toshiaki SHITABA, Tomoaki YOSHIDA, Yoichi FUKADA, Akihiro TANABE, Ryo MIYATAKE
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Publication number: 20240299913Abstract: Provided are a lignin degradation catalyst that exhibits excellent lignin degradability and that is readily separated after degradation reaction, a method for producing the catalyst, and a method for degrading lignin. The lignin degradation catalyst according to the present invention contains a substrate and at least one metal compound immobilized on the substrate, wherein the at least one metal compound contains a copper compound. The method for producing a lignin degradation catalyst according to the present invention includes the step of brining a porous copper substrate into contact with a solution containing an oxidant to obtain a substrate having a copper compound immobilized thereon, or the step of subjecting a porous copper substrate to electro-oxidation to obtain a substrate having a copper compound immobilized thereon.Type: ApplicationFiled: December 27, 2021Publication date: September 12, 2024Applicants: HIROSAKI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Akihiro Yoshida, Tomonori Sonoki, Kurnia Irwan, Guoqing Guan, Abuliti Abudula, Takao Masuda, Takuya Yoshikawa
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Publication number: 20240294476Abstract: A method for producing a drug substance of crystalline pitavastatin calcium excellent in stability, is presented. In the production of a compound (pitavastatin calcium) represented by the formula (1): The water content is adjusted to a level of from 5 to 15%, and the crystal form is controlled to be crystal form A, thereby to obtain a drug substance excellent in stability.Type: ApplicationFiled: April 17, 2024Publication date: September 5, 2024Applicant: NISSAN CHEMICAL CORPORATIONInventors: Yoshio OHARA, Yasutaka TAKADA, Hiroo MATSUMOTO, Akihiro YOSHIDA
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Patent number: 12077694Abstract: A surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc is provided. The surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc., comprises a surface layer, a resin substrate layer and a PSA layer, and has a multilayer structure with the resin substrate layer placed between the surface layer and the PSA layer, wherein the surface layer is a layer obtainable by curing a heat-curable composition comprising the following components: (a) a hydroxyl group-containing (meth)acrylic copolymer having a glass transition temperature of ?40° C. to 30° C.; (b) an allophanate polyisocyanate and/or a biuret polyisocyanate; and (c) a polysiloxane comprising a hydroxyl group-containing hydrocarbon group and/or polymer.Type: GrantFiled: September 27, 2019Date of Patent: September 3, 2024Assignees: ARAKAWA CHEMICAL INDUSTRIES, LTD., NITTO DENKO CORPORATIONInventors: Keita Kume, Yuki Hashimoto, Akihiro Yamazaki, Toru Higashimoto, Eiichi Imoto, Yoshio Nakagawa, Shota Tanaka, Kenichi Nishikawa, Chihiro Yoshida
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Patent number: 12049021Abstract: [Object] To provide a building material having excellent durability. [Solution] A building material has a convex part formed on a surface thereof, the convex part including a first lateral surface part and a second lateral surface part corresponding to the first lateral surface part. The building material is formed from a mixture containing a hydraulic material, an admixture, and a plant-based reinforcing material, and the plant-based reinforcing material at least in the convex part is distributed in the mixture with the hydraulic material and the admixture attached to the plant-based reinforcing material. A distribution of the plant-based reinforcing material in the first lateral surface part and a distribution of the plant-based reinforcing material in the second lateral surface part are substantially the same.Type: GrantFiled: October 4, 2022Date of Patent: July 30, 2024Assignee: NICHIHA CORPORATIONInventors: Satoshi Ikeda, Kazuhisa Yoshida, Hidenori Nishioka, Akihiro Sugimoto
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Patent number: 11939693Abstract: There is provided a surface-treated steel sheet (1) comprising: a tin-plated steel sheet (10) obtained by tin-plating a steel sheet (11); a phosphate compound layer (20) containing tin phosphate formed on the tin-plated steel sheet (10); and an aluminum-oxygen compound layer (30) on the phosphate compound layer (20), a main constituent of the aluminum-oxygen compound layer (30) being an aluminum-oxygen compound; wherein, when the 3d5/2 spectrum of tin in the aluminum-oxygen compound layer (30) is determined using an X-ray photoelectron spectroscopy, the ratio of the integration value of the profile derived from tin oxide to the integration value of the profile derived from tin phosphate (tin oxide/tin phosphate) is 6.9 or more.Type: GrantFiled: June 18, 2021Date of Patent: March 26, 2024Assignee: TOYO KOHAN CO., LTD.Inventors: Kunihiro Yoshimura, Masanobu Matsubara, Marie Sasaki, Akihiro Yoshida, Kenji Yanada, Munemitsu Hirotsu
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Patent number: 11866062Abstract: A vehicle display device includes: an acquisition unit that acquires a travel environment; a prediction unit that predicts a behavior of another vehicle traveling ahead of a vehicle of a driver, based on the travel environment; and a display unit that, when the behavior of the other vehicle is predicted to become unstable, displays the predicted behavior of the other vehicle to the driver of the vehicle. The vehicle display device may include: a prediction unit that predicts a behavior of a vehicle, based on the travel environment; and a display unit that, when the behavior of the vehicle is predicted to become unstable, displays the predicted behavior of the vehicle to a driver of the vehicle.Type: GrantFiled: February 14, 2022Date of Patent: January 9, 2024Assignee: YAZAKI CORPORATIONInventors: Akihiro Yoshida, Shinichi Okamoto, Yoshiharu Matsuo, Sosuke Yamamoto
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Patent number: 11794767Abstract: A vehicle display device includes: an acquisition unit that acquires a travel environment; a prediction unit that predicts a behavior of another vehicle traveling ahead of a vehicle of a driver, based on the travel environment; and a display unit that, when the behavior of the other vehicle is predicted to become unstable, displays the predicted behavior of the other vehicle to the driver of the vehicle. The vehicle display device may include: a prediction unit that predicts a behavior of a vehicle, based on the travel environment; and a display unit that, when the behavior of the vehicle is predicted to become unstable, displays the predicted behavior of the vehicle to a driver of the vehicle.Type: GrantFiled: February 14, 2022Date of Patent: October 24, 2023Assignee: YAZAKI CORPORATIONInventors: Akihiro Yoshida, Shinichi Okamoto, Yoshiharu Matsuo, Sosuke Yamamoto
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Publication number: 20230322679Abstract: A method for producing a drug substance of crystalline pitavastatin calcium excellent in stability, is presented. In the production of a compound (pitavastatin calcium) represented by the formula (1): The water content is adjusted to a level of from 5 to 15%, and the crystal form is controlled to be crystal form A, thereby to obtain a drug substance excellent in stability.Type: ApplicationFiled: June 14, 2023Publication date: October 12, 2023Applicant: NISSAN CHEMICAL CORPORATIONInventors: Yoshio OHARA, Yasutaka TAKADA, Hiroo MATSUMOTO, Akihiro YOSHIDA
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Patent number: 11753737Abstract: There is provided a surface-treated steel sheet (1) comprising: a tin-plated steel sheet (10) obtained by tin-plating a steel sheet (11); a phosphate compound layer (20) containing tin phosphate formed on the tin-plated steel sheet (10); and an aluminum-oxygen compound layer (30) formed on the phosphate compound layer (20), a main constituent of the aluminum-oxygen compound layer being an aluminum-oxygen compound.Type: GrantFiled: June 17, 2021Date of Patent: September 12, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kunihiro Yoshimura, Masanobu Matsubara, Marie Sasaki, Akihiro Yoshida, Kenji Yanada, Munemitsu Hirotsu
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Publication number: 20230257898Abstract: A surface-treated steel sheet including a tin-plated steel sheet having a tin plating on a steel sheet; a tin oxide layer formed on the tin-plated steel sheet and containing tin oxide as a main component; a composite oxide layer formed on the tin oxide layer and containing phosphoric acid and aluminum as main components; and an aluminum-oxygen compound layer formed on the composite oxide layer and containing an aluminum-oxygen compound as a main component, wherein the tin oxide layer has a thickness of 8 to 20 nm.Type: ApplicationFiled: May 25, 2021Publication date: August 17, 2023Applicant: TOYO KOHAN CO., LTD.Inventors: Naomi TAGUCHI, Akihiro YOSHIDA, Kenji YANADA
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Publication number: 20230096031Abstract: A numerical control (NC) program is converted regardless of a machining form of a workpiece. An NC program conversion processing method is an NC program conversion processing method for converting a conversion source NC program that controls a first machining center into a conversion destination NC program that controls a second machining center, which includes: a determination step of determining a machining form of a workpiece by the conversion source NC program; a decision step of deciding a correction method to be one-direction correction or two-direction correction according to the determined machining form of the workpiece; and a conversion step of converting the conversion source NC program into the conversion destination NC program using the decided correction method.Type: ApplicationFiled: September 8, 2020Publication date: March 30, 2023Inventors: Yasutaka KEDO, Ippei KONO, Akihiro YOSHIDA, Koji UTSUMI
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Publication number: 20220292838Abstract: A vehicular display apparatus includes an obtaining unit that obtains obstacle information serving as information relating to an obstacle that hinders advancing of a preceding vehicle, and a display that displays the obstacle information in a situation where an own vehicle is stopped or is moving slowly, and the preceding vehicle is stopped or is moving slowly. The vehicular display apparatus displays a virtual image of the obstacle information, for example, in a case where the own vehicle is a first vehicle located on this side of an intersection, and the preceding vehicle is located on the other side of the intersection.Type: ApplicationFiled: February 21, 2022Publication date: September 15, 2022Inventors: Shinichi Okamoto, Akihiro Yoshida, Yoshiharu Matsuo, Sosuke Yamamoto
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Publication number: 20220289224Abstract: A vehicle display device includes: an acquisition unit that acquires a travel environment; a prediction unit that predicts a behavior of another vehicle traveling ahead of a vehicle of a driver, based on the travel environment; and a display unit that, when the behavior of the other vehicle is predicted to become unstable, displays the predicted behavior of the other vehicle to the driver of the vehicle. The vehicle display device may include: a prediction unit that predicts a behavior of a vehicle, based on the travel environment; and a display unit that, when the behavior of the vehicle is predicted to become unstable, displays the predicted. behavior of the vehicle to a driver of the vehicle.Type: ApplicationFiled: February 14, 2022Publication date: September 15, 2022Inventors: Akihiro Yoshida, Shinichi Okamoto, Yoshiharu Matsuo, Sosuke Yamamoto
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Publication number: 20220289227Abstract: A vehicular display apparatus includes: an acquisition unit configured to acquire information regarding a speed of wind and a direction of the wind at a predetermined location ahead of a vehicle; a generation unit configured to generate a display figure, based on the information; and a display device configured to display an image of the display figure ahead of a driver in the vehicle, in which the generation unit generates, in a case where the wind includes a crosswind, the display figure in a horizontally-long flat shape and moves a display position of the display figure in a direction of the crosswind.Type: ApplicationFiled: March 7, 2022Publication date: September 15, 2022Inventors: Shinichi Okamoto, Akihiro Yoshida, Yoshiharu Matsuo, Sosuke Yamamoto
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Patent number: 11396164Abstract: An electronic component includes a ceramic element, glass-containing Au layers formed on both surfaces of the ceramic element, and an Au—Sn alloy layer formed on at least one of the glass-containing Au layers; the electronic component further includes a pure-Au layer between the glass-containing Au layer and the Au—Sn alloy layer; furthermore, the Au—Sn alloy layer has an Au—Sn eutectic structure.Type: GrantFiled: August 9, 2019Date of Patent: July 26, 2022Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Masayuki Ishikawa, Satoru Daido, Kaoru Nishizawa, Akihiro Yoshida, Hiroki Sato
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Publication number: 20220177433Abstract: A method for producing a drug substance of crystalline pitavastatin calcium excellent in stability, is presented. In the production of a compound (pitavastatin calcium) represented by the formula (1): The water content is adjusted to a level of from 5 to 15%, and the crystal form is controlled to be crystal form A, thereby to obtain a drug substance excellent in stability.Type: ApplicationFiled: February 28, 2022Publication date: June 9, 2022Applicant: NISSAN CHEMICAL CORPORATIONInventors: Yoshio OHARA, Yasutaka TAKADA, Hiroo MATSUMOTO, Akihiro YOSHIDA
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Patent number: 11295702Abstract: A head-up display device includes: a reflection member disposed in front of a driver who drives a vehicle; a projection unit configured to project light toward the reflection member and display a virtual image in a region superimposed on a superimposing display target when viewed by the driver; and an imaging unit configured to take an image of a region in front of the vehicle to generate a front image that is an image of the region in front of the vehicle. The projection unit adjusts a luminance distribution of a virtual image in accordance with a luminance distribution of a region of the superimposing display target in the front image.Type: GrantFiled: January 23, 2018Date of Patent: April 5, 2022Assignee: YAZAKI CORPORATIONInventors: Atsushi Ishibashi, Kazuyoshi Ogasawara, Akihiro Yoshida