Location History:
- Tsukui, JP (1995)
- Kanagawa, JP (1989 - 1996)
- Hadano, JP (1996)
- Tsukui-gun, JP (1997)
Company Filing History:
Years Active: 1989-1997
Title: Hidenori Umeno: Innovator in Cache Mode Selection and Virtual Machine Control
Introduction
Hidenori Umeno is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the fields of cache mode selection and virtual machine control. With a total of 17 patents to his name, Umeno's work has had a substantial impact on technology and computing.
Latest Patents
Umeno's latest patents include a cache mode selection method for dynamically selecting a cache mode. This innovative method sets a cache load inhibit mode for a cache mode used for random access datasets with lower access hit ratios when the use ratio of a data transmission path exceeds an upper limit. Additionally, it sets the cache load inhibit mode for parts of a sequential access dataset. This dynamic selection helps prevent a decrease in I/O response and increases the hit ratio.
Another notable patent is a virtual machine control method and system designed for supercomputers. This method allows multiple virtual machines to utilize a vector processor efficiently. The control of the vector processor's use is managed through a scalar processor. When a virtual machine requests access to the vector processor, the system first checks if another virtual machine is currently using it. If the vector processor is in use, the requesting virtual machine is placed in a wait state until it becomes available.
Career Highlights
Hidenori Umeno is currently employed at Hitachi, Ltd., where he continues to innovate and develop new technologies. His work at Hitachi has allowed him to collaborate with other talented engineers and researchers in the field.
Collaborations
Some of Umeno's notable coworkers include Shunji Tanaka and Taro Inoue. Their collaborative efforts have contributed to advancements in technology and have fostered a creative environment for innovation.
Conclusion
Hidenori Umeno's contributions to cache mode selection and virtual machine control demonstrate his expertise and commitment to advancing technology. His innovative patents and work at Hitachi, Ltd. continue to influence the field of computing.