Patents by Inventor Koki Tanaka

Koki 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: 20200055105
    Abstract: A cooling device cooling an undersurface of a hot rolled steel sheet that is being transported on transport rolls after finish rolling of a hot rolling step includes: width divided cooling zones that are a plurality of cooling zones into which a whole cooling zone is divided in a sheet width direction; divided cooling sections that are a plurality of cooling zones into which each of the width divided cooling zones is divided in the rolling direction; a water nozzle spraying cooling water over each of undersurfaces of the divided cooling sections; a switching mechanism switching the cooling water between impinging and not impinging on the divided cooling sections; a width direction thermometer measuring a temperature distribution in the sheet width direction; and a controller controlling operation of the switching mechanism.
    Type: Application
    Filed: March 31, 2017
    Publication date: February 20, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yohichi HARAGUCHI, Yoshihiro SERIZAWA, Tatsuro HONDA, Hisayoshi TACHIBANA, Susumu NAKAGAWA, Koki TANAKA, Shota ISHITSUKA
  • Publication number: 20200039459
    Abstract: A seat cushion airbag apparatus is applied to a vehicle seat in which a seat cushion includes a cushion part and a support portion. An airbag, including an inflatable portion, is disposed between the support portion and the cushion part. The inflatable portion includes: a rear inflatable portion that inflates on a lower side of buttocks of an occupant; a front inflatable portion that inflates on a lower side of a femur of the occupant; and a connection portion that connects the rear inflatable portion and the front inflatable portion. A tilting plate is disposed between the support portion and the cushion part and is supported to be tiltable in an upper-lower direction by a shaft provided rearward of the front inflatable portion, the tilting plate including a flat pressure receiving portion that receives pressure of inflation gas from a lower side through at least the front inflatable portion.
    Type: Application
    Filed: July 26, 2019
    Publication date: February 6, 2020
    Inventors: Koki TANAKA, Takashi IIDA, Shigeyuki SUZUKI, Tadashi YAMADA, Yasushi MASUDA, Hajime KITTE, Motoyuki TANAKA
  • Publication number: 20200041144
    Abstract: A superordinate controlling device for a heat source system (1) including a plurality of heat sources, the superordinate controlling device being applied to the heat source system (1) and controlling heat-pump type chillers (2a) and (2b) and absorption-type chillers (2c) and (2d) in such a manner that a heat transfer medium leaving temperature that is the temperature of a heat transfer medium supplied to an external load (6) is equal to a setting temperature. The heat-pump type chillers (2a) and (2b) each have a higher Coefficient of Performance (COP) than that of each of the absorption-type chillers (2c) and (2d).
    Type: Application
    Filed: September 20, 2017
    Publication date: February 6, 2020
    Applicants: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD., TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED
    Inventors: Satoshi NIKAIDO, Koki TATEISHI, Yusuke HAZUI, Yutaka TAKENAKA, Hirotaka HANASAKI, Satoru TANAKA
  • Publication number: 20190389092
    Abstract: A multi-screw kneader that exhibits an extensional flow function before and behind small holes of a disk-shaped segment having the small holes and a method for producing a nano-composite using the multi-screw kneader and a disk-shaped segment to be used therein. The multi-screw kneader includes a plurality of kneading screws and a disk-shaped segment in a barrel. The disk-shaped segment partitions the inside of the barrel downstream a part for charging a kneading material and includes a plurality of shaft penetrating parts through which rotating shafts of the kneading screws rotatably pass and a large number of small holes punched in a periphery of these shaft penetrating parts and serving as flow channels of the kneading material. The nano-composite production includes charging nanoparticles as a resin additive using the multi-screw kneader. The disk-shaped segment includes the shaft penetrating parts and the large number of the small holes.
    Type: Application
    Filed: August 22, 2019
    Publication date: December 26, 2019
    Inventors: Tatsuya TANAKA, Koki MATSUMOTO
  • Publication number: 20190383844
    Abstract: To suppress inflow of external air through a rack insertion opening while a sample rack is pulled out. An apparatus includes a housing, a temperature control space, and an air temperature control part. The housing has the rack insertion opening on one side surface for putting in and taking out the sample rack. The air temperature control part has an air intake portion for intake of air in the temperature control space, a fan for blowing air taken in from the air intake portion toward the sample rack accommodated in the temperature control space, and a cooling element provided to cool the air on a path of air taken in from the air intake portion. The air temperature control part is configured to reduce an amount of air flowing near the rack insertion opening while the sample rack is pulled out from the temperature control space as compared to while the sample rack is accommodated in the temperature control space, so as to suppress inflow of air through the rack insertion opening.
    Type: Application
    Filed: May 9, 2019
    Publication date: December 19, 2019
    Inventors: Koki MIYAZAKI, Shinji TANAKA
  • Publication number: 20190383845
    Abstract: To suppress generation of dew condensation in temperature control space when heating temperature control is performed. In an apparatus, an air temperature control part for cooling or heating air in temperature control space has a first temperature control element for performing at least cooling of air, and a second temperature control element for performing at least heating of air downstream of the first temperature control element. In this manner, when heating temperature control is performed, cooling and dehumidification of air taken in from an air intake portion can be performed by the first temperature control element, and then heating of the dehumidified air can be performed by the second temperature control element.
    Type: Application
    Filed: May 9, 2019
    Publication date: December 19, 2019
    Inventors: Koki MIYAZAKI, Shinji TANAKA
  • Publication number: 20190283437
    Abstract: An ink tank that enables to check whether a cover of an ink tank is normally bonded to the ink tank includes a first chamber having a supply port for supplying ink to a printing head that ejects ink, a second chamber having an external air introduction port capable of introducing external air, a partition wall configured to separate the first chamber and the second chamber, a communication path provided in the partition wall and configured to place the first chamber and the second chamber in communication with each other, a first cover member configured to cover an opening of the first chamber without extending over an opening of the second chamber, and a second cover member configured to cover the opening of the second chamber without extending over the opening of the first chamber.
    Type: Application
    Filed: March 29, 2019
    Publication date: September 19, 2019
    Inventors: Koki Shimada, Hideaki Matsumura, Masaya Shimmachi, Yukimichi Kimura, Junichi Kubokawa, Takahiro Kiuchi, Yusuke Tanaka, Kyohei Sato
  • Publication number: 20190258394
    Abstract: An inspection assistance device includes a damage drawing input part configured to input a damage drawing, i.e. a drawing illustrating damages of target parts, a display configured to display the damage drawing and target figures illustrating target parts to be overlaid with each other, and a storage configured to store the damage drawing separately from the target figures in connection with the target figures.
    Type: Application
    Filed: October 19, 2016
    Publication date: August 22, 2019
    Inventors: Koki TATEISHI, Makoto TANAKA, Tadakuni NISHIO, Ichiro SAITO
  • Patent number: 10355408
    Abstract: A connector includes a connector body including an opening to which a substrate is to be inserted; guide posts provided at both sides of the connector body; and latches being rotatably connected to the guide posts, respectively, wherein each of the latches includes a lock plate configured to support the substrate from both surfaces of the substrate, when the substrate is inserted in the opening, and a presser configured to enter a notch provided at a side of the connector body.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: July 16, 2019
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Tetsugaku Tanaka, Koki Sato
  • Publication number: 20190143700
    Abstract: An inkjet printing apparatus includes a printhead having an ejection orifice surface on which ejection orifices for ejecting ink are arranged, where the printhead performs a printing operation in a printing area; a carriage including the printhead, and movable in a first direction; a cap for covering the ejection orifice surface; and a wiper that wipes the ejection orifice surface. The cap is movable, by a movement of the carriage, to a first position, and to a second position farther from the printing area along the first direction. At the second position, the cap can rise and lower to a capping position at which the cap abuts the ejection orifice surface, and to a separated position at which the cap does not abut the ejection orifice surface. The wiper wipes the ejection orifice surface when the cap is at the second position and at the separated position.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Inventors: Koki Shimada, Yusuke Tanaka
  • Publication number: 20180274145
    Abstract: A coating apparatus of an airbag reinforcing liquid is used in a sewing machine that includes: a sewing needle driving an upper thread by penetrating sewing target cloth through a vertical movement; and a presser foot disposed above the sewing target cloth, and feeding the sewing target cloth while moving vertically synchronously with the vertical movement of the sewing needle. The coating apparatus includes: a reinforcing liquid supplying part, supplying a reinforcing liquid for reinforcing a sewn part onto the sewing target cloth on a front side from the sewing needle in a feeding direction of the sewing target cloth; and a stamp part attached to the presser foot, and expand the reinforcing liquid supplied from the reinforcing liquid supplying part onto the sewing target cloth around the sewn part by being operated integrally with the presser foot above the sewing target cloth.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 27, 2018
    Inventor: Koki TANAKA
  • Patent number: 10074857
    Abstract: A titanium or titanium alloy material for a separator of a polymer electrolyte fuel cell having high contact conductivity with carbon and high durability, and including an oxide film formed on a titanium or titanium alloy substrate by a stabilization treatment performed after a passivation treatment, and one or more kinds of conductive materials selected from carbide, nitride, carbonitride, and boride of tantalum, titanium, vanadium, zirconium, and chromium, the conductive materials being dispersed in the oxide film and having a major axis diameter of from 1 nm to 100 nm. A contact resistance value with a carbon paper is 20 m?·cm2 or less at a surface pressure of 10 kgf/cm2 before and after an accelerated deterioration test in which the titanium or titanium alloy material is immersed in a sulfuric acid aqueous solution having an adjusted pH of 4 at 80° C. for four days.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 11, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hiroshi Kihira, Yuuichi Yosida, Taku Kagawa, Takumi Nishimoto, Koki Tanaka, Masao Kimura, Kiyonori Tokuno, Kazuhiro Takahashi, Takashi Domoto
  • Patent number: 9947942
    Abstract: A titanium or titanium alloy material for a fuel cell separator has a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. By increasing contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator, the lifetime of a fuel cell may be increased. The material has high usability in the cell manufacturing industry.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: April 17, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuhiro Takahashi, Taku Kagawa, Hiroshi Kihira, Kiyonori Tokuno, Takumi Nishimoto, Koki Tanaka
  • Patent number: 9863088
    Abstract: A polyvinyl alcohol (PVA)-based airbag base fabric aqueous coating material is described. A blocked polyisocyanate component (B-NCO) and liquid polyol are added to polyvinyl alcohol as a cross-linkage improver and a plasticizer, respectively. The B-NCO is composed of or based on a medium-molecular-weight form as a polyether-modified prepolymer, and used concurrently with a low-molecular-weight form in a small amount. The base fabric coating material is applied on one or both of the sides of a cloth of the base fabric and heated. The acquired coating film is a water-insoluble coat and the coating has excellent heat and moisture resistance (hot water resistance) and flexibility.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 9, 2018
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Koki Tanaka, Hajime Miwa, Motoaki Naruse, Yuh Kimura
  • Patent number: 9815430
    Abstract: A sewn airbag includes a plurality of base fabrics sewn together, wherein in a sewn region where reinforcement is required, a reinforcing coating film made of an adhesive coating material that is adhesive to both a sewing yarn and fibers forming the base fabrics is formed on at least one of the upper and lower surfaces of the sewn region, the reinforcing coating film having the smallest possible width along a stitching region in the form of one or more strips forming the sewn region made with the sewing yarn.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 14, 2017
    Assignee: TOYODA GOSEI CO., LTD.
    Inventor: Koki Tanaka
  • Patent number: 9725795
    Abstract: A galvannealed steel sheet includes: a steel sheet; a coating layer on a surface of the steel sheet; and a mixed layer formed between the steel sheet and the coating layer, in which the mixed layer includes a base iron portion having fine grains having a size of greater than 0 ?m and equal to or smaller than 2 ?m, a Zn—Fe alloy phase, and oxides containing one or more types of Mn, Si, Al, and Cr, and in the mixed layer, the oxides and the Zn—Fe alloy phase are present in grain boundaries that form the fine grains and the Zn—Fe alloy phase is tangled with the base iron portion. [Mn]+[Si]+[Al]+[Cr]?0.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: August 8, 2017
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Takeshi Yasui, Kojiro Akiba, Kiyokazu Ishizuka, Koki Tanaka
  • Publication number: 20160090059
    Abstract: A sewn airbag includes a plurality of base fabrics sewn together, wherein in a sewn region where reinforcement is required, a reinforcing coating film made of an adhesive coating material that is adhesive to both a sewing yarn and fibers forming the base fabrics is formed on at least one of the upper and lower surfaces of the sewn region, the reinforcing coating film having the smallest possible width along a stitching region in the form of one or more strips forming the sewn region made with the sewing yarn.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 31, 2016
    Inventor: Koki TANAKA
  • Publication number: 20150329946
    Abstract: A galvannealed steel sheet includes: a steel sheet; a coating layer on a surface of the steel sheet; and a mixed layer formed between the steel sheet and the coating layer, in which the mixed layer includes a base iron portion having fine grains having a size of greater than 0 ?m and equal to or smaller than 2 ?m, a Zn—Fe alloy phase, and oxides containing one or more types of Mn, Si, Al, and Cr, and in the mixed layer, the oxides and the Zn—Fe alloy phase are present in grain boundaries that form the fine grains and the Zn—Fe alloy phase is tangled with the base iron portion. [Mn]+[Si]+[Al]+[Cr]?0.
    Type: Application
    Filed: December 25, 2012
    Publication date: November 19, 2015
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takeshi YASUI, Kojiro AKIBA, Kiyokazu ISHIZUKA, Koki TANAKA
  • Publication number: 20150325864
    Abstract: [Object] To increase contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator so as to increase the lifetime of a fuel cell. [Solution] Provided is a titanium or titanium alloy material for a fuel cell separator having a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. The present invention has high usability in the cell manufacturing industry.
    Type: Application
    Filed: January 31, 2014
    Publication date: November 12, 2015
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takumi NISHIMOTO, Hiroshi KIHIRA, Kiyonori TOKUNO, Taku KAGAWA, Koki TANAKA, Kazuhiro TAKAHASHI
  • Publication number: 20150280251
    Abstract: [Object] To increase contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator so as to increase the lifetime of a fuel cell. [Solution] Provided is a titanium or titanium alloy material for a fuel cell separator having a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. The present invention has high usability in the cell manufacturing industry.
    Type: Application
    Filed: January 31, 2014
    Publication date: October 1, 2015
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuhiro Takahashi, Taku Kagawa, Hiroshi Kihira, Kiyonori Tokuno, Takumi Nishimoto, Koki Tanaka