Location History:
- Odawara, JP (2014)
- Tokyo, JP (2016)
Company Filing History:
Years Active: 2014-2016
Title: Takashi Itoyama: Innovator in Disk Array Systems
Introduction
Takashi Itoyama is a prominent inventor based in Tokyo, Japan, known for his contributions to disk array systems. With a total of two patents to his name, he has made significant advancements in the field of data storage and management.
Latest Patents
His latest patents include an "Access route switching method in disk array system," which addresses the I/O performance bottleneck in disk array systems. This innovative method involves the use of an expander composed of two internal expanders connected to each other. When a path experiences a bottleneck, the connection of the two internal expanders in a designated expander is severed, allowing the cut-off internal expanders to connect to a new path, thereby changing the access route to the disk drive. Additionally, a device management table and a routing table are updated to reflect the changes in access routes.
Another notable patent is the "Storage apparatus and method of controlling the same," which prevents performance deterioration during diagnostic processing when failures occur. This storage apparatus includes a controller and multiple expanders, forming two systems that work in tandem. The controller stores a maximum number of communication ports that can be diagnosed concurrently, ensuring efficient operation and maintenance.
Career Highlights
Takashi Itoyama is currently employed at Hitachi, Ltd., where he continues to develop innovative solutions in data storage technology. His work has been instrumental in enhancing the performance and reliability of storage systems.
Collaborations
Throughout his career, he has collaborated with notable colleagues such as Yoshifumi Mimata and Ikuya Yagisawa, contributing to various projects that push the boundaries of technology.
Conclusion
In summary, Takashi Itoyama is a key figure in the field of disk array systems, with patents that significantly improve data storage efficiency and performance. His ongoing work at Hitachi, Ltd. continues to influence the industry positively.
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