Company Filing History:
Years Active: 1997-2000
Title: Innovations of Jun Katayama
Introduction
Jun Katayama is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of disk control technology, holding a total of 3 patents. His work primarily focuses on improving the efficiency and reliability of disk controlling apparatuses.
Latest Patents
One of his latest patents is a disk controlling apparatus that creates sense data indicating the contents of an error. This apparatus writes the sense data into an intermediate buffer along with the record normally read when a key portion or data portion is not normally read. The disk controlling apparatus searches the intermediate buffer for the desired record, reads, and informs an error while considering the sense data for each record. Additionally, it stores a write address in memory during data writing. If data is normally written, the write address is eliminated from memory, while it is retained if data is not normally written. When reading data, if the address matches the read address stored in memory, the apparatus reports an error to a host apparatus. Furthermore, it calculates the busy ratio indicating the rate at which each channel adapter is used for I/O processing, ensuring data is transmitted and received through the channel adapter with the lowest busy ratio.
Career Highlights
Jun Katayama is currently employed at Fujitsu Corporation, where he continues to innovate in the field of disk control technology. His work has been instrumental in enhancing the performance and reliability of disk systems.
Collaborations
He has collaborated with notable coworkers, including Tohru Kobayashi and Shoichi Murano, contributing to various projects and advancements in technology.
Conclusion
Jun Katayama's contributions to disk control technology through his patents and work at Fujitsu Corporation highlight his role as an influential inventor in the field. His innovations continue to shape the future of disk systems and data management.