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).

  • Publication number: 20240154613
    Abstract: 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: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Naoya TAKAI, Yukihiro TAKIFUJI, Keita SAITO, Kazuki TANAKA
  • Publication number: 20240151177
    Abstract: 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: Application
    Filed: March 22, 2022
    Publication date: May 9, 2024
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shintaro SHUTO, Kengo TANAKA, Keita SUZUKI
  • Publication number: 20240142817
    Abstract: 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: Application
    Filed: October 19, 2023
    Publication date: May 2, 2024
    Applicant: Japan Display Inc.
    Inventors: Yoshinori TANAKA, Keita ONO, Keiji TAGO
  • Publication number: 20240134596
    Abstract: 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: Application
    Filed: June 29, 2021
    Publication date: April 25, 2024
    Inventors: Takashi IIZAWA, Keita KURAMOCHI, Atsuhiro YAMANAKA, Hideki NAGATA, Kazuaki TANAKA, Kyoichi TERAO, Takashi KAMIMURA, Daiki WAGURI, Yuya ISHIZAKI, Kei SUZUKI, Takayuki SHIMAZU
  • Patent number: 11966115
    Abstract: 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: Grant
    Filed: October 19, 2023
    Date of Patent: April 23, 2024
    Assignee: Japan Display Inc.
    Inventors: Yoshinori Tanaka, Keita Ono, Keiji Tago
  • Patent number: 11958725
    Abstract: 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: Grant
    Filed: March 23, 2021
    Date of Patent: April 16, 2024
    Assignees: TADANO LTD., THE SCHOOL CORPORATION KANSAI UNIVERSITY
    Inventors: Iwao Ishikawa, Takayuki Kosaka, Keita Mashima, Satoshi Kubota, Shigenori Tanaka, Masaya Nakahara, Koki Nakahata
  • Patent number: 11962605
    Abstract: 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: Grant
    Filed: October 10, 2019
    Date of Patent: April 16, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuma Koyama, Keita Hasegawa, Yasushi Okano, Masashi Tanaka
  • Publication number: 20240085896
    Abstract: 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 an
    Type: Application
    Filed: March 11, 2021
    Publication date: March 14, 2024
    Inventors: Hiroyuki MORI, Keita SAJI, Mayuko TANAKA, Katsuki NAKAJIMA
  • Patent number: 11916547
    Abstract: 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: Grant
    Filed: September 2, 2022
    Date of Patent: February 27, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Naoya Takai, Yukihiro Takifuji, Keita Saito, Kazuki Tanaka
  • Publication number: 20230335319
    Abstract: 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: Application
    Filed: August 18, 2021
    Publication date: October 19, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Keita Tanaka, Masanori Ikari, Takuto Matsumoto
  • Publication number: 20230317325
    Abstract: 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: Application
    Filed: August 26, 2021
    Publication date: October 5, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takuto Matsumoto, Masanori Ikari, Keita Tanaka
  • Patent number: 11737252
    Abstract: 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: Grant
    Filed: September 26, 2018
    Date of Patent: August 22, 2023
    Assignee: FUJI CORPORATION
    Inventors: Hidekazu Yamanaka, Norio Hosoi, Keita Tanaka
  • Patent number: 11642914
    Abstract: 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: Grant
    Filed: November 13, 2020
    Date of Patent: May 9, 2023
    Assignee: Shimano Inc.
    Inventors: Mitsuru Kamiya, Keita Tanaka
  • Publication number: 20230044719
    Abstract: 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: Application
    Filed: February 6, 2020
    Publication date: February 9, 2023
    Applicant: FUJI CORPORATION
    Inventors: Keita TANAKA, Kenichi HAYASHI
  • Publication number: 20220371649
    Abstract: 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: Application
    Filed: December 2, 2020
    Publication date: November 24, 2022
    Applicants: STARTING INDUSTRIAL CO., LTD., KOMATSU LTD.
    Inventors: Hiroki KATO, Ami ISHIMIZU, Norihiro IWAHASHI, Takuma SHODA, Keita TANAKA
  • Publication number: 20220322590
    Abstract: 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: Application
    Filed: July 22, 2019
    Publication date: October 6, 2022
    Applicant: FUJI CORPORATION
    Inventors: Keita TANAKA, Norio HOSOI
  • Publication number: 20220256746
    Abstract: 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: Application
    Filed: July 19, 2019
    Publication date: August 11, 2022
    Applicant: FUJI CORPORATION
    Inventors: Keita TANAKA, Norio HOSOI
  • Patent number: 11339057
    Abstract: 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: Grant
    Filed: May 22, 2019
    Date of Patent: May 24, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Keita Tanaka, Masanori Ikari
  • Publication number: 20220017377
    Abstract: 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: Application
    Filed: July 6, 2021
    Publication date: January 20, 2022
    Inventor: Keita TANAKA
  • Patent number: 11209733
    Abstract: 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 substituted
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 28, 2021
    Inventors: Yuichi Nishimae, Hisatoshi Kura, Kazuhiko Kunimoto, Ryuhei Yamagami, Keita Tanaka