Patents by Inventor Nobushige NAKAJIMA

Nobushige NAKAJIMA 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).

  • Semiconductor memory device, storage system, and computer
    Patent number: 10157159
    Abstract: A semiconductor memory device includes, in addition to a first switching circuit with which a data system signal line between a plurality of semiconductor memory portions and a memory controller is branched, a second switching circuit with which a non-data system signal line between the plurality of semiconductor memory portions and the memory controller is branched, and the first and second switching circuits share a switching signal line.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: December 18, 2018
    Assignee: HITACHI, LTD.
    Inventors: Yasuhiro Ikeda, Yutaka Uematsu, Hideyuki Koseki, Masato Shimizu, Nobushige Nakajima
  • SEMICONDUCTOR MEMORY DEVICE, STORAGE SYSTEM, AND COMPUTER
    Publication number: 20170286345
    Abstract: A semiconductor memory device includes, in addition to a first switching circuit with which a data system signal line between a plurality of semiconductor memory portions and a memory controller is branched, a second switching circuit with which a non-data system signal line between the plurality of semiconductor memory portions and the memory controller is branched, and the first and second switching circuits share a switching signal line.
    Type: Application
    Filed: November 7, 2014
    Publication date: October 5, 2017
    Inventors: Yasuhiro IKEDA, Yutaka UEMATSU, Hideyuki KOSEKI, Masato SHIMIZU, Nobushige NAKAJIMA