Patents by Inventor Kohei Tomozawa

Kohei Tomozawa 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: 20240131929
    Abstract: For a vehicle interior compartment defined by a vehicle floor, opposing sidewalls, a forward end and a rearward end, and a vehicle ceiling covering at least part of the compartment, an end zone overhead display structure includes bulkhead forming attachment elements coupled to a roof strut spanning from sidewall to sidewall of the vehicle roof. The display structure includes an open box-like upper bracket and an open box-like lower bracket coupled together with the roof strut interposed to provide an assembly that reduces unwanted motion, rotation or vibration of the display assembly.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: Kohei INOUE, Patrick J. ELLISON, Taiga MARUKAWA, Kosaku TOMOZAWA, Akira FUTATSUHASHI, Takashi NAKANO, Jagpaul S. PANDHER, Tsuyoshi HIGUCHI
  • Patent number: 8761562
    Abstract: In a multicore fiber in which multiple single mode cores are stored in one optical fiber, the multicore fiber has a lattice-point arrangement in which multiple lattice points are periodically arranged two-dimensionally with translational symmetry and rotational symmetry or one of translational symmetry and rotational symmetry and, in that lattice-point arrangement, multiple cores are arranged with the lattice points of the lattice-point arrangement as reference positions. By giving different perturbations to the propagation constants of the cores, the propagation constants of the cores are each varied from the original propagation constants. Because of the variation in the propagation constants, the core-to-core coupling amount, which is dependent on the varied propagation constants, fall below a predetermined setting amount.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: June 24, 2014
    Assignee: National University Corporation Yokohama National University
    Inventors: Yasuo Kokubun, Kohei Tomozawa
  • Publication number: 20130156393
    Abstract: In a multicore fiber in which multiple single mode cores are stored in one optical fiber, the multicore fiber has a lattice-point arrangement in which multiple lattice points are periodically arranged two-dimensionally with translational symmetry and rotational symmetry or one of translational symmetry and rotational symmetry and, in that lattice-point arrangement, multiple cores are arranged with the lattice points of the lattice-point arrangement as reference positions. By giving different perturbations to the propagation constants of the cores, the propagation constants of the cores are each varied from the original propagation constants. Because of the variation in the propagation constants, the core-to-core coupling amount, which is dependent on the varied propagation constants, fall below a predetermined setting amount.
    Type: Application
    Filed: August 23, 2011
    Publication date: June 20, 2013
    Applicant: National University Corporation Yokohama National University
    Inventors: Yasuo Kokubun, Kohei Tomozawa