Patents by Inventor Kazunori Asada

Kazunori Asada 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).

  • Publication number: 20080070857
    Abstract: This invention relates to a pharmaceutical agent for preventing metastasis of cancer, which comprises a substance that inhibits expression of macrophage migration inhibitory factor (MIF). Such substance includes siRNA of MIF.
    Type: Application
    Filed: February 14, 2006
    Publication date: March 20, 2008
    Inventors: Jun Nishihira, Sun Bailong, Yoshikazu Koyama, Kazunori Asada
  • Patent number: 6457126
    Abstract: A storage device (10) has a flash memory (11), a controller (16) and a second ROM (15). In the flash memory (11), a data key is stored, which is a key unique to each storage device (10). In the second ROM (15), a system key is stored which is an encrypting key common to storage devices (10). The controller (16), when writing data, encrypts the data with the data and system keys and writes the encrypted data in the flash memory (11), and when reading data, decrypts the data with the data and system keys to output the decrypted data. The data key may be encrypted with the system key. In this case, when to write data, the controller (16) may decrypt the data key with the system key, and encrypt data with the decrypted key, and when to read data, the controller may decrypt the data key with the system key, and decrypt the encrypted data with the decrypted data key.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: September 24, 2002
    Assignee: Tokyo Electron Device Limited
    Inventors: Yasuhiro Nakamura, Seiji Hiraka, Kazunori Asada, Satoshi Era