Patents by Inventor Tohru Hasagawa

Tohru Hasagawa 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).

  • File system extended attribute support in an operating system with restricted extended attributes
    Patent number: 9053108
    Abstract: Embodiments of the invention relate to providing file system extended attribute support in an operating system. A request from an application to access extended attribute data in a multi-platform file system using an interface specified by the operating system is received. It is determined whether the specified interface supports an exchange of full content of the extended attribute data between the application and the multi-platform file system. Based on determining that the specified interface does not support an exchange of full content, the request is processed by an alternate interface. Based on the access being a read, the full content of the extended attribute data is retrieved and returned to the application using the alternate interface. Based on the access being a write, the full content of the extended attribute data is received from the application using the alternate interface and written to the multi-platform file system.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: June 9, 2015
    Assignee: International Business Machines Corporation
    Inventors: Brian Biskeborn, Tohru Hasagawa, David A. Pease, Michael A. Richmond, Anurag Sharma
  • FILE SYSTEM EXTENDED ATTRIBUTE SUPPORT IN AN OPERATING SYSTEM WITH RESTRICTED EXTENDED ATTRIBUTES
    Publication number: 20140222876
    Abstract: Embodiments of the invention relate to providing file system extended attribute support in an operating system. A request from an application to access extended attribute data in a multi-platform file system using an interface specified by the operating system is received. It is determined whether the specified interface supports an exchange of full content of the extended attribute data between the application and the multi-platform file system. Based on determining that the specified interface does not support an exchange of full content, the request is processed by an alternate interface. Based on the access being a read, the full content of the extended attribute data is retrieved and returned to the application using the alternate interface. Based on the access being a write, the full content of the extended attribute data is received from the application using the alternate interface and written to the multi-platform file system.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brian Biskeborn, Tohru Hasagawa, David A. Pease, Michael A. Richmond, Anurag Sharma