This inventor holds 3 USPTO granted patents and 3 published patent applications. Top assignee: International Business Machines Corporation. Active years: 1997-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1997-1999
Title: Mayumi Shimada: Innovator in Disk Array Systems
Introduction
Mayumi Shimada is a prominent inventor based in Tokyo-to, Japan. She has made significant contributions to the field of data storage technology, particularly in disk array systems. With a total of 3 patents to her name, her work has greatly influenced the efficiency of data management.
Latest Patents
One of her latest patents is a "Disk array system and method for storing data." This innovative system is designed to improve the speed of writing data in a disk array system. It incorporates a solid-state disk storage device configured with semiconductor flash memory to sequentially store parity for the disk array. The system allows data sectors to be assigned sequentially in a cluster consisting of a set of blocks, where each block serves as a physical unit of erasure. Write operations for multiple sectors are efficiently distributed across the set of blocks in the cluster.
Another notable patent is also titled "Disk array system and method for storing data." This method enhances the speed of writing data in a RAID disk array system. It divides disks into those for reading old data and those for writing new data. An external semiconductor storage device is utilized as a parity device, significantly boosting performance during write operations. The disk array system is structured to store data with a parity group comprising N data units stored in sectors of N magnetic disk drives, with parity stored in the external device. At least N+1 data-storing magnetic disk drives are included, ensuring redundancy through the use of sectors from at least one magnetic disk drive.
Career Highlights
Mayumi Shimada is currently employed at International Business Machines Corporation (IBM), where she continues to innovate in the field of data storage solutions. Her work has been instrumental in advancing the technology used in disk array systems.
Collaborations
Some of her notable coworkers include Hideto Niijima and Nobuyuki Matsuo, who have collaborated with her on various projects within the company.
Conclusion
Mayumi Shimada's contributions to disk array systems have established her as a key figure in the field of data storage technology. Her innovative patents reflect her commitment to improving data management efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile