Location History:
- Yokohama, JP (2003 - 2006)
- Kawasaki, JP (2009 - 2010)
Company Filing History:
Years Active: 2003-2010
Title: Katsumi Shirai: Innovator in Storage Device Technology
Introduction
Katsumi Shirai is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of storage device technology, holding a total of 6 patents. His innovative work has advanced the capabilities of magnetic disk devices and storage medium driving apparatuses.
Latest Patents
One of his latest patents is a storage device that includes a magnetic disk device with a head that reads position information. This device features a position-information correction value for correcting the position information, along with an error correcting code for the position-information correction value sourced from a storage medium. Additionally, it incorporates a microcontroller unit (MCU) and an error check and correct (ECC) circuit to rectify errors in the position-information correction value based on the error correcting code. The device also includes a static var compensator (SVC) that performs position control based on either the position-information correction value read by the head or the corrected position-information correction value, ensuring the head is accurately located at a target position on the storage medium.
Another notable patent is for a storage medium driving apparatus and its control method. This apparatus consists of a head slider positioned above a storage medium and an acceleration detector that measures the apparatus's acceleration. The control circuit retracts the head slider from the storage medium based on the acceleration detector's results and selectively executes various operations according to an index derived from the detected results, which represents the amount of impact energy.
Career Highlights
Katsumi Shirai has worked with leading companies in the technology sector, including Fujitsu Corporation and Toshiba Storage Device Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in storage technology.
Collaborations
Throughout his career, Shirai has collaborated with notable colleagues such as Ichiro Anzai and Kiyotaka Fukawa. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Katsumi Shirai's contributions to storage device technology have made a significant impact in the field. His innovative patents and collaborations with industry leaders highlight his role as a key inventor in advancing storage solutions.