Patents by Inventor Tetsufumi YANAGIDA

Tetsufumi YANAGIDA 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).

  • Memory system and controller
    Patent number: 9478293
    Abstract: A memory system includes a semiconductor memory device and a controller. The semiconductor memory device performs a writing operation with either a first writing method or a second writing method. The controller selects one of the first writing method and the second writing method upon receipt of a write instruction and output a write command indicating the selected writing method to the semiconductor memory device. The controller selects the writing method in accordance with a storage location in the semiconductor memory device targeted by the write instruction.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 25, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsufumi Yanagida, Masanobu Shirakawa, Toshihiro Suzuki
  • MEMORY SYSTEM AND CONTROLLER
    Publication number: 20160078947
    Abstract: A memory system includes a semiconductor memory device and a controller. The semiconductor memory device performs a writing operation with either a first writing method or a second writing method. The controller selects one of the first writing method and the second writing method upon receipt of a write instruction and output a write command indicating the selected writing method to the semiconductor memory device. The controller selects the writing method in accordance with a storage location in the semiconductor memory device targeted by the write instruction.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 17, 2016
    Inventors: Tetsufumi YANAGIDA, Masanobu SHIRAKAWA, Toshihiro SUZUKI