Patents by Inventor Wataru Katou

Wataru Katou 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).

  • Polarizer and image display device
    Patent number: 11921369
    Abstract: An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. A polarizer of the present invention is a polarizer formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: March 5, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yoshiaki Takada, Yuzo Fujiki, Kengo Saito, Yasuhiro Ishiwata, Takashi Katou, Keisuke Ushirogata
  • Knocking detection apparatus and internal combustion engine control apparatus
    Patent number: 11067022
    Abstract: Provided is a knocking detection apparatus capable of reducing erroneous determination of knocking during transition, and improving knocking detection accuracy regardless of whether an engine is in steady operation or transient operation. A knocking detection apparatus according to the present invention estimates a background level based on an operating state of an internal combustion engine, and calculates a knocking determination index by using the estimated value.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshihiko Akagi, Masashi Seimiya, Seiji Asano, Wataru Katou, Masanori Nukui, Masahiro Sato
  • KNOCKING DETECTION APPARATUS AND INTERNAL COMBUSTION ENGINE CONTROL APPARATUS
    Publication number: 20210207550
    Abstract: Provided is a knocking detection apparatus capable of reducing erroneous determination of knocking during transition, and improving knocking detection accuracy regardless of whether an engine is in steady operation or transient operation. A knocking detection apparatus according to the present invention estimates a background level based on an operating state of an internal combustion engine, and calculates a knocking determination index by using the estimated value.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 8, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshihiko AKAGI, Masashi SEIMIYA, Seiji ASANO, Wataru KATOU, Masanori NUKUI, Masahiro SATO
  • PHOSPHOR, PROCESS FOR PRODUCING THE SAME, WAVELENGTH CONVERTER AND ILLUMINATION DEVICE
    Publication number: 20100214763
    Abstract: A fluorescent substance contains M1 (M1 is: barium; barium and strontium; or barium and calcium), europium, magnesium, manganese, and silicon as essential components. The amount of the europium is 0.14 mol or smaller per mol of the silicon, and the amount of the manganese is 0.07 mol or smaller per mol of the silicon. The main crystals are a solid solution of europium and manganese in M13MgSi2O8. When X-ray diffraction intensities for the M13MgSi2O8 crystals, M12MgSi2O7 crystals, M12SiO4 crystals, and M1MgSiO4 crystals are expressed by A, B, C, and D, respectively, then B/(A+B+C+D) is 0.1 or less, C/(A+B+C+D) is 0.1 or less, and D/(A+B+C+D) is 0.26 or less.
    Type: Application
    Filed: December 21, 2007
    Publication date: August 26, 2010
    Applicant: KYOCERA CORPORATION
    Inventors: Wataru Katou, Naoki Koshitani