Inventor · Yokohama, JP

Koji Sonoda

68Patents
17h-index
82Co-inventors
87Inventor score

Filing activity: Jun 25, 1998 → Feb 1, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7069393B2 Storage system providing file aware caching and file aware remote copy Emerging Cross-Sectional Technologies 109 Expired
US7069380B2 File access method in storage-device system, and programs for the file access Emerging Cross-Sectional Technologies 95 Expired
US7120768B2 Snapshot acquisition method, storage system and disk apparatus Emerging Cross-Sectional Technologies 73 Expired
US7356660B2 Storage device Emerging Cross-Sectional Technologies 69 Expired
US6850955B2 Storage system and control method Emerging Cross-Sectional Technologies 57 Expired
US7237076B2 Method of maintaining a plurality of snapshots, server apparatus and storage apparatus Emerging Cross-Sectional Technologies 42 Expired
US6810462B2 Storage system and method using interface control devices of different types Emerging Cross-Sectional Technologies 41 Expired
US7325041B2 File distribution system in which partial files are arranged according to various allocation rules associated with a plurality of file types Physics 41 Active
US8117151B2 File system migration in storage system Physics 39 Active
US8832371B2 Storage system with multiple flash memory packages and data control method therefor Physics 30 Active
US7107323B2 System and method of file distribution for a computer system in which partial files are arranged according to various allocation rules Physics 29 Expired
US6654769B2 File system for creating switched logical I/O paths for fault recovery Emerging Cross-Sectional Technologies 28 Expired
US6101558A High speed file I/O control method and system with user set file structure to effect parallel access pattern over a network Emerging Cross-Sectional Technologies 26 Expired
US7620698B2 File distribution system in which partial files are arranged according to various allocation rules associated with a plurality of file types Physics 25 Active
US7464222B2 Storage system with heterogenous storage, creating and copying the file systems, with the write access attribute Physics 21 Expired
US7146368B2 File server and file server controller Emerging Cross-Sectional Technologies 21 Expired
US7330950B2 Storage device Emerging Cross-Sectional Technologies 18 Expired
US7036149B2 Computer system Emerging Cross-Sectional Technologies 13 Expired
US7716319B2 Computer system and method for managing log information Emerging Cross-Sectional Technologies 13 Active
US7120767B2 Snapshot creating method and apparatus Emerging Cross-Sectional Technologies 11 Expired
US7047355B2 Updated data write method using journal log Emerging Cross-Sectional Technologies 10 Expired
US7849282B2 Filesystem building method Physics 10 Expired
US8427784B2 Head slider having trailing end configuration of a groove formed at a boundary between a trailing step and a trailing pad for adaptation with a gimbal assembly and disk drive Physics 8 Active
US7266654B2 Storage system, server apparatus, and method for creating a plurality of snapshots Emerging Cross-Sectional Technologies 8 Expired
US7130868B2 File system for creating switched logical I/O paths for fault recovery Emerging Cross-Sectional Technologies 7 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.