Patents by Inventor Keita Tanaka
Keita Tanaka 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: 20240154613Abstract: A semiconductor relay device includes a conversion circuit configured to receive an input signal from outside and pass a first current to a first node based on the input signal. A zener diode has an anode coupled to a second node and a cathode coupled to the first node. A resistor is coupled between the second node and a third node. A number n of diodes are serially coupled. A thyristor has an anode coupled to the first node, a cathode coupled to the second node, and a control terminal coupled to the third node. A transistor has a gate coupled to the first node. An anode of a diode at a first end of the n diodes is coupled to the first node, and a cathode of a diode at a second end of the n diodes is coupled to a third node.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Inventors: Naoya TAKAI, Yukihiro TAKIFUJI, Keita SAITO, Kazuki TANAKA
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Publication number: 20240151177Abstract: An opposed-piston engine includes: a cylinder having a scavenging port on one side in an axial direction and an exhaust port on another side in the axial direction, a scavenging-side piston disposed inside the cylinder on the one side in the axial direction, an exhaust-side piston disposed inside the cylinder on the other side in the axial direction; and at least one fuel injection device configured to inject fuel between the scavenging-side piston and the exhaust-side piston inside the cylinder. A top surface of the exhaust-side piston is formed in a flat shape, a top surface of the scavenging-side piston has a scavenging-side cavity with a predetermined cavity volume, and the at least one fuel injection device includes at least one scavenging-side fuel injection device having a central axis inclined to the one side in the axial direction toward an inner side in a radial direction of the cylinder.Type: ApplicationFiled: March 22, 2022Publication date: May 9, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shintaro SHUTO, Kengo TANAKA, Keita SUZUKI
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Publication number: 20240142817Abstract: Used is a display device including: a first substrate having a first front surface and a first back surface located on an opposite side of the first front surface; a second substrate having a second back surface opposing the first front surface and a second front surface located on an opposite side of the second back surface; a liquid crystal layer arranged between the first front surface of the first substrate and the second back surface of the second substrate; a first light guide plate adhesively fixed onto the second front surface of the second substrate via a first adhesive layer; and a light source unit arranged at a position opposing a first side surface of the first light guide plate, in which refractive index of the first light guide plate is lower than refractive index of the first adhesive layer.Type: ApplicationFiled: October 19, 2023Publication date: May 2, 2024Applicant: Japan Display Inc.Inventors: Yoshinori TANAKA, Keita ONO, Keiji TAGO
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Publication number: 20240134596Abstract: The content output device includes an information acquisition unit, a content generation unit and an output unit. The information acquisition unit acquires driving state information which is information related to a current driving state of a vehicle. The content generation unit acquires one or more content elements corresponding to a trigger condition, from among a plurality of content elements combinable with each other, when the driving state information satisfies the trigger condition, and generates an output content using the acquired content elements. The output unit outputs the output content.Type: ApplicationFiled: June 29, 2021Publication date: April 25, 2024Inventors: Takashi IIZAWA, Keita KURAMOCHI, Atsuhiro YAMANAKA, Hideki NAGATA, Kazuaki TANAKA, Kyoichi TERAO, Takashi KAMIMURA, Daiki WAGURI, Yuya ISHIZAKI, Kei SUZUKI, Takayuki SHIMAZU
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Patent number: 11966115Abstract: Used is a display device including: a first substrate having a first front surface and a first back surface located on an opposite side of the first front surface; a second substrate having a second back surface opposing the first front surface and a second front surface located on an opposite side of the second back surface; a liquid crystal layer arranged between the first front surface of the first substrate and the second back surface of the second substrate; a first light guide plate adhesively fixed onto the second front surface of the second substrate via a first adhesive layer; and a light source unit arranged at a position opposing a first side surface of the first light guide plate, in which refractive index of the first light guide plate is lower than refractive index of the first adhesive layer.Type: GrantFiled: October 19, 2023Date of Patent: April 23, 2024Assignee: Japan Display Inc.Inventors: Yoshinori Tanaka, Keita Ono, Keiji Tago
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Patent number: 11958725Abstract: A guide display unit for a crane, wherein a data processing unit: calculates a measurement area corresponding to the measurement area of a camera; the measurement area from the viewpoint of the camera and generates a first image; performs mosaic-processing on the image captured by the camera according to the particle size of the three-dimensional map and generates a second image; performs registration processing on the first image and the second image and calculates the amount of deviation between the first image and the second image; corrects the position of a guide frame figure with respect to the image of a suspended load and a feature on the basis of the calculated amount of deviation; and overlays the guide frame figure on the images of the suspended load and the feature and displays the result on the data display unit.Type: GrantFiled: March 23, 2021Date of Patent: April 16, 2024Assignees: TADANO LTD., THE SCHOOL CORPORATION KANSAI UNIVERSITYInventors: Iwao Ishikawa, Takayuki Kosaka, Keita Mashima, Satoshi Kubota, Shigenori Tanaka, Masaya Nakahara, Koki Nakahata
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Patent number: 11962605Abstract: A storage processing unit configured to store, in a storage unit, first data output by a device or any one of multiple devices in association with first context information related to the first data, and a determining unit configured to obtain second context information related to second data in a case where the second data is received from the device or any one of the multiple devices, and determine whether an analysis of the received second data is necessary based on the received second data and the obtained second context information and based on the first data and the first context information stored in the storage unit, are provided.Type: GrantFiled: October 10, 2019Date of Patent: April 16, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takuma Koyama, Keita Hasegawa, Yasushi Okano, Masashi Tanaka
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Publication number: 20240085896Abstract: A quality improvement support apparatus that supports improvement in quality of a product produced by a production facility, including: a display unit that displays production condition information in which identification information, operation instruction state information, and a condition evaluation index are associated with each other for each operation instruction, the identification information identifying an improvement target that is a production member or a component included in the production facility and that is to be improved to improve quality of the product, the operation instruction state information indicating a state of an operation instruction to perform an operation in relation to the improvement target, the condition evaluation index being an index for evaluating conditions of the production facility relating to the quality of the product; and an additional operation instruction accepting unit accepting an additional operation instruction for additionally giving an instruction to perform anType: ApplicationFiled: March 11, 2021Publication date: March 14, 2024Inventors: Hiroyuki MORI, Keita SAJI, Mayuko TANAKA, Katsuki NAKAJIMA
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Patent number: 11916547Abstract: A semiconductor relay device includes a conversion circuit configured to receive an input signal from outside and pass a first current to a first node based on the input signal. A zener diode has an anode coupled to a second node and a cathode coupled to the first node. A resistor is coupled between the second node and a third node. A number n of diodes are serially coupled. A thyristor has an anode coupled to the first node, a cathode coupled to the second node, and a control terminal coupled to the third node. A transistor has a gate coupled to the first node. An anode of a diode at a first end of the n diodes is coupled to the first node, and a cathode of a diode at a second end of the n diodes is coupled to a third node.Type: GrantFiled: September 2, 2022Date of Patent: February 27, 2024Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Naoya Takai, Yukihiro Takifuji, Keita Saito, Kazuki Tanaka
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Publication number: 20230335319Abstract: A sintered body of Tb-conitaining rare earth aluminum garnet represented by formula (1) (where 0 < x < 0.45, 0 < y ? 0.1, and 0.004 < z < 0.2), wherein: | a-b | ? 0.1 when at least 900 mn < ? < 1,100 nm, where, in terms of a total light transmittance spectrum on an optical path length of 24 mm, a% is the total light transmittance at the wavelength 900 mn and b% is the total light transmittance at any wavelength ? more to the long-wavelength side than 900 nm; and no thermal lensing effect is produced even with respect to a 100-W laser output, allowing for use as a Faraday rotator of a high-power fiber laser.Type: ApplicationFiled: August 18, 2021Publication date: October 19, 2023Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Keita Tanaka, Masanori Ikari, Takuto Matsumoto
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Publication number: 20230317325Abstract: A paramagnetic garnet-type transparent ceramic that exhibits a high laser damage threshold, said ceramic being a sintered body of a Tb-containing rare earth-aluminum garnet represented by formula (1), and being characterized in that the average sintered grain size is 10-40 ?m, and the insertion loss at a wavelength of 1,064 nm in the optically effective region along the length direction of a 20 mm-long sample is 0.05 dB or less. (Tb1-x-yYxScy)3(Al1-zScz)5O12??Formula (1) (In the formula, 0?x<0.45, 0?y<0.08, 0?z<0.2, and 0.001<y+z<0.20.Type: ApplicationFiled: August 26, 2021Publication date: October 5, 2023Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Takuto Matsumoto, Masanori Ikari, Keita Tanaka
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Patent number: 11737252Abstract: Tape-feeder setting work apparatus (40), which is used when an operator performs a work of setting a component supply tape wound on tape reel (12), in tape feeder (10), includes feeder set base (41) configured to hold the tape feeder in the setting work of the component supply tape, power supply section (47) configured to supply a power to tape feeding device (29) inside the tape feeder, and operation section (51) configured to allow the operator to operate the tape feeding device inside the tape feeder. When a work of setting a tip portion of the component supply tape by pulling out the tip portion from the tape reel set in the tape feeder held by the feeder set base is performed, the operator operates the operation section of the tape-feeder setting work apparatus to operate a tape feeding operation of the tape feeding device inside the tape feeder, and feeds the tip portion of the component supply tape pulled out from the tape reel to a component pickup position of the tape feeder.Type: GrantFiled: September 26, 2018Date of Patent: August 22, 2023Assignee: FUJI CORPORATIONInventors: Hidekazu Yamanaka, Norio Hosoi, Keita Tanaka
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Patent number: 11642914Abstract: To provide a bicycle hub unit and a bicycle wheel assembly that allow a wheel unit to be appropriately coupled to a hub body, a bicycle hub unit is coupled to a rotary body to which a brake is applied by a brake device. The bicycle hub unit includes a hub body that rotates around a hub axle and a rotary body coupling portion that couples the rotary body to the hub body. The hub body includes a first joint portion and a second joint portion. The first joint portion includes an external thread coupled to an internal thread of the wheel unit. The second joint portion is coupled to a restriction member that restricts relative rotation of the first joint portion and the wheel unit.Type: GrantFiled: November 13, 2020Date of Patent: May 9, 2023Assignee: Shimano Inc.Inventors: Mitsuru Kamiya, Keita Tanaka
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Publication number: 20230044719Abstract: A tape guide includes a guide section configured to guide a carrier tape, a component exposing section configured to open a cover tape to expose an electronic component in a component storage section during conveyance of the carrier tape guided by the guide section, a tongue portion provided on the component exposing section and configured such that a distal end portion is movable between a first height position at which the distal end portion enters between a base tape and the cover tape and a second height position higher than the first height position, a pressing section placed above the tongue portion to apply a pressing force to the tongue portion to cause the tongue portion to move downward, and a stepped portion provided on a facing surface on which the tongue portion and the pressing section face each other.Type: ApplicationFiled: February 6, 2020Publication date: February 9, 2023Applicant: FUJI CORPORATIONInventors: Keita TANAKA, Kenichi HAYASHI
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Publication number: 20220371649Abstract: A tilt structure allows the tilt of a console to be changed through simple motion and has a simple configuration. The tilt structure includes: a second frame attached to an upper portion of a first frame and is swingable upward and downward; and a control member attached to the second frame and is tiltable backward and forward through a tilting shaft. The control member includes a guide part with a groove housing a first frame pin. A locked and unlocked state switch to each other by causing the control member to tilt. The locked state includes a pin engaged with any of the engagement parts. The unlocked state includes the pin disengaged. The tilt of the second frame relative to the first frame is changed by engaging the pin with an arbitrary engagement part of any of the engagement parts and changing a distance between the tilting shaft and pin.Type: ApplicationFiled: December 2, 2020Publication date: November 24, 2022Applicants: STARTING INDUSTRIAL CO., LTD., KOMATSU LTD.Inventors: Hiroki KATO, Ami ISHIMIZU, Norihiro IWAHASHI, Takuma SHODA, Keita TANAKA
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Publication number: 20220322590Abstract: A tape feeder that feeds a carrier tape constituted of a bottom tape accommodating multiple components and a cover tape adhered to the bottom tape to supply the components includes a peeling section configured to peel the cover tape from the bottom tape at a position in front of a supply position of the component, a tension applying section configured to pull the cover tape into a predetermined location by driving a motor to collect the cover tape peeled from the bottom tape, and a holding section configured to hold the cover tape between the peeling section and the tension applying section when a power supply of the tape feeder is turned off and to release the holding of the cover tape when the power supply of the tape feeder is turned on.Type: ApplicationFiled: July 22, 2019Publication date: October 6, 2022Applicant: FUJI CORPORATIONInventors: Keita TANAKA, Norio HOSOI
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Publication number: 20220256746Abstract: A tape guide includes a guide section to guide the carrier tape, the carrier tape including the base tape provided with the component storage section for storing the electronic component and the cover tape provided on a surface of the base tape to close the component storage section, and a component exposing section having a tongue portion inserted between the base tape and the cover tape during conveyance of the carrier tape guided by the guide section to expose the electronic component in the component storage section. The tongue portion moves up and down so that a distal end portion of the tongue portion is movable between a first height position at which the distal end portion can enter between the base tape and the cover tape and a second height position higher than the first height position.Type: ApplicationFiled: July 19, 2019Publication date: August 11, 2022Applicant: FUJI CORPORATIONInventors: Keita TANAKA, Norio HOSOI
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Patent number: 11339057Abstract: To a co-precipitating aqueous solution, aqueous solutions containing (a) Tb ions, (b) at least one other rare earth ions selected from the group consisting of Y ions and lanthanoid rare earth ions (excluding Tb ions), (c) Al ions and (d) Sc ions are added; the resulting solution is stirred at a liquid temperature of 50° C. or less to induce a co-precipitate of the components (a), (b), (c) and (d); the co-precipitate is filtered, heated and dehydrated; and the co-precipitate is fired thereafter at from 1,000° C. to 1,300° C., thereby forming a sinterable garnet-type complex oxide powder.Type: GrantFiled: May 22, 2019Date of Patent: May 24, 2022Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Keita Tanaka, Masanori Ikari
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Publication number: 20220017377Abstract: A method produces transparent ceramics having high transmittance and no bubble defects with uniform insertion loss over the entire inner surface thereof. The method comprising the steps of: obtaining a candidate composition containing a binder, optionally a dispersant, and optionally a plasticizer; dissolving the candidate composition in a solvent, then reducing a contained solvent volume to 0.1% by mass or less, and measuring a glass transition temperature; selecting a candidate composition having a glass transition temperature of 25° C. or more and 60° C.Type: ApplicationFiled: July 6, 2021Publication date: January 20, 2022Inventor: Keita TANAKA
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Patent number: 11209733Abstract: Oxime ester compounds of the formula I, II, III, IV or V wherein Z is for example Z1 for is NO2, unsubstituted or substituted C7-C20aroyl or unsubstituted or substituted C4-C20heteroaroyl; provided that at least one Z1 is other than NO2; Z2 is for example unsubstituted or substituted C7-C20aroyl; R1, R2, R3, R4, R5 and R6 for example are hydrogen, halogen, or unsubstituted or substituted C1-C20alkyl, unsubstituted or substituted C6-C20aryl, or unsubstituted or substituted C4-C20heteroaryl; R9, R10, R11, R12 and R13 for example are hydrogen, halogen, OR16, unsubstituted or substituted C1-C20alkyl; provided that R9 and R13 are neither hydrogen nor fluorine; R14 is for example unsubstituted or substituted C6-C20aryl or C3-C20heteroaryl Q is for example C6-C20arylene or C3-C20heteroarylene; Q1 is —C1-C20alkylene-CO—; Q2 is naphthoylene; Q3 is for example phenylene; L is for example O-alkylene-O—; R15 is for example hydrogen or C1-C20alkyl; R20 is for example hydrogen, or unsubstituted or substitutedType: GrantFiled: September 9, 2019Date of Patent: December 28, 2021Inventors: Yuichi Nishimae, Hisatoshi Kura, Kazuhiko Kunimoto, Ryuhei Yamagami, Keita Tanaka