Patents by Inventor Tamaki Imakawa

Tamaki Imakawa 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).

  • Controlling apparatus, method for controlling apparatus and information processing apparatus
    Patent number: 8639967
    Abstract: A controlling apparatus for controlling an information processing apparatus, the controlling apparatus includes a first controller including a first data transfer unit that communicates data between the information processing apparatus, and a first processing unit that generates a command to instruct the first data transfer unit to communicate data between the information processing apparatus, and a second controller including a second data transfer unit that communicates data between the information processing apparatus, and a second processing unit that generates a command to instruct the second data transfer unit to communicate data between the information processing apparatus.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: January 28, 2014
    Assignee: Fujitsu Limited
    Inventors: Tamaki Imakawa, Hitoshi Matsumori, Toshiharu Maekawa, Michio Numata, Satoru Sakai
  • CONTROLLING APPARATUS, METHOD FOR CONTROLLING APPARATUS AND INFORMATION PROCESSING APPARATUS
    Publication number: 20120047397
    Abstract: A controlling apparatus for controlling an information processing apparatus, the controlling apparatus includes a first controller including a first data transfer unit that communicates data between the information processing apparatus, and a first processing unit that generates a command to instruct the first data transfer unit to communicate data between the information processing apparatus, and a second controller including a second data transfer unit that communicates data between the information processing apparatus, and a second processing unit that generates a command to instruct the second data transfer unit to communicate data between the information processing apparatus.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 23, 2012
    Applicant: Fujitsu Limited
    Inventors: Tamaki Imakawa, Hitoshi Matsumori, Toshiharu Maekawa, Michio Numata, Satoru Sakai
  • Data processing apparatus with function of effecting hang-up processing
    Patent number: 5721869
    Abstract: A data processing apparatus with a function of effecting a hang-up processing inhibits detecting retention of an access request as a hang-up, when the access request is accepted by a predetermined port. The apparatus includes a single time counting unit (76) provided in common for hang-up detection circuits (71 to 75). By this constitution, it is possible to reduce the number of hardwares, and to prevent an access request, which should not be detected as a hang-up, from being detected as a hang-up.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: February 24, 1998
    Assignee: Fujitsu Limited
    Inventor: Tamaki Imakawa