Patents by Inventor Keisuke IWAHASHI

Keisuke IWAHASHI 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: 10254679
    Abstract: A memory control device includes a memory control part that controls memory through an interface part in accordance with a predetermined communication regulation, an illegal access detection part that detects an illegal access to the memory according to an access state from the memory control part to the memory and a signal state of the interface part, and a signal control part that switches the signal state of the interface part from a write-allowed state, in which the interface part is able to be written, to a write-inhibited state, in which the interface part is protected from being rewritten, when the illegal access is detected by the illegal access detection part.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 9, 2019
    Assignee: Oki Data Corporation
    Inventors: Kazuya Yamamoto, Keisuke Iwahashi, Keisuke Watanabe, Takashi Kobayashi, Keitaro Ishida, Yasushi Yamawaki
  • Publication number: 20170371272
    Abstract: A memory control device includes a memory control part that controls memory through an interface part in accordance with a predetermined communication regulation, an illegal access detection part that detects an illegal access to the memory according to an access state from the memory control part to the memory and a signal state of the interface part, and a signal control part that switches the signal state of the interface part from a write-allowed state, in which the interface part is able to be written, to a write-inhibited state, in which the interface part is protected from being rewritten, when the illegal access is detected by the illegal access detection part.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 28, 2017
    Inventors: Kazuya YAMAMOTO, Keisuke IWAHASHI, Keisuke WATANABE, Takashi KOBAYASHI, Keitaro ISHIDA, Yasushi YAMAWAKI
  • Patent number: 8873079
    Abstract: An image reader device reads images from pages of a document based on a read parameter for a current page, and outputs first image data. The first image data is processed based on an image processing parameter for the current page, to output second image data. A storage unit stores the second image data, the read parameter for a subsequent page, and the image processing parameter for the subsequent page. The stored read parameter for the subsequent page is provided directly to an image reading unit upon completion of the image read processing of the current page. The stored image processing parameter for the subsequent page is provided directly to an image processing unit upon completion of the image processing of the current page.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: October 28, 2014
    Assignee: Oki Data Corporation
    Inventor: Keisuke Iwahashi
  • Publication number: 20140104633
    Abstract: An image reader device reads images from pages of a document based on a read parameter for a current page, and outputs first image data. The first image data is processed based on an image processing parameter for the current page, to output second image data. A storage unit stores the second image data, the read parameter for a subsequent page, and the image processing parameter for the subsequent page. The stored read parameter for the subsequent page is provided directly to an image reading unit upon completion of the image read processing of the current page. The stored image processing parameter for the subsequent page is provided directly to an image processing unit upon completion of the image processing of the current page.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 17, 2014
    Applicant: Oki Data Corporation
    Inventor: Keisuke IWAHASHI