Toyohiko Kagimasa

File format conversion method and file system, information processing system, electronic commerce system using the method

Method and system for managing distributed data

File data multiplexing method and data processing system

Networking system and parallel networking method

System using environment manager with resource table in each computer for managing distributed computing resources managed for each application

Data processing apparatus having a real memory region with a corresponding fixed memory protection key value and method for allocating memories therefor

Allocation method of physical regions of a disc array to a plurality of logically-sequential data, adapted for increased parallel access to data

Data processor with control of the significant bit lengths of general purpose registers

Method for allocating real pages to virtual pages having different page sizes therefrom

Disc array system having disc storage devices dispersed on plural boards and accessible at withdrawal of part of the boards