Patents by Inventor Naoki Koizumi

Naoki Koizumi 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).

  • Patent number: 11918630
    Abstract: The present invention provides a technique for treating retinal epithelium and/or nerves. More specifically, the present invention is an agent for the treatment or prevention of retinal disease or the like and/or a disease, disorder, or ophthalmological state of the nerves, the agent including at least one factor selected from the group consisting of laminin and fragments thereof, wherein the problem is solved by also providing a technique characterized in that this agent is administered together with retinal pigment epithelial cells and/or nerve cells. Specifically, the present invention can include laminin 411 (?4?1?1), laminin 511 (?5?1?1), laminin 521 (?5?2?1), or fragments of these.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: March 5, 2024
    Assignees: KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION, THE DOSHISHA, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Noriko Koizumi, Naoki Okumura, Shigeru Kinoshita
  • Publication number: 20170085270
    Abstract: An object is to avoid a deadlock in a PLL. A PLL synthesizer includes a PLL circuit that includes a voltage control oscillation circuit configured to control an oscillation frequency according to a control voltage, an oscillation frequency storage unit configured to previously store the oscillation frequency at a first temperature, a control voltage setting unit configured to set a control voltage based on a difference between the oscillation frequency at a second temperature and the stored oscillation frequency, and a calibration processing unit configured to calibrate the voltage control oscillation circuit in a state in which the control voltage is set so that the oscillation frequency will become a predetermined frequency.
    Type: Application
    Filed: July 29, 2016
    Publication date: March 23, 2017
    Inventors: Hidehiko SUZUKI, Naoki KOIZUMI, Hisaya ISHIHARA, Kazuhiro KIJIMA
  • Patent number: 4896257
    Abstract: A computer system including a first computer unit processing user's tasks, a second computer unit performing a halt operation for a virtual memory access, a main memory storing a plurality of virtual accessing data, a buffer memory unit temporarily storing a part of the virtual accessing data and having a faster operation time than that of the main memory, and a control unit controlling the above. The buffer memory unit receives a virtual memory address from the first computer unit and outputs a corresponding actual memory address for accessing the main memory. The control unit includes first and second latches and outputs a bi-state interruption signal and a multilevel interruption signal in response to states of the first and second latch circuits.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: January 23, 1990
    Assignee: Panafacom Limited
    Inventors: Kazuhiko Ikeda, Naoki Koizumi