Patents by Inventor Norihiko Kubota

Norihiko Kubota 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 including serial/parallel conversion circuit
    Patent number: 6327206
    Abstract: A semiconductor memory device having a reduced circuit area. The semiconductor memory device includes a memory cell array connected to an address decoder, a sense amplifier, a write amplifier, and a command decoder. A first serial/parallel converter is adjacent to the address decoder. A parallel/serial converter is adjacent to the sense amplifier. A second serial/parallel converter is adjacent to the write amplifier. A third serial/parallel converter is adjacent to the command decoder. The serial/parallel converters and the parallel/serial converter are each connected to an input/output circuit via a pair of wires.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: December 4, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Norihiko Kubota, Sadao Yoshikawa
  • Semiconductor memory device
    Publication number: 20010024397
    Abstract: A semiconductor memory device having a reduced circuit area. The semiconductor memory device includes a memory cell array connected to an address decoder, a sense amplifier, a write amplifier, and a command decoder. A first serial/parallel converter is adjacent to the address decoder. A parallel/serial converter is adjacent to the sense amplifier. A second serial/parallel converter is adjacent to the write amplifier. A third serial/parallel converter is adjacent to the command decoder. The serial/parallel converters and the parallel/serial converter are each connected to an input/output circuit via a pair of wires.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 27, 2001
    Inventors: Norihiko Kubota, Sadao Yoshikawa