Location History:
- Kawasaki, JP (2008)
- Kanagawa, JP (2008 - 2011)
Company Filing History:
Years Active: 2008-2011
Title: Toyomi Ohsawa: Innovator in Disk Drive Technology
Introduction
Toyomi Ohsawa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of disk drive technology, holding a total of 8 patents. His work focuses on enhancing the performance and reliability of disk drives through innovative control methods.
Latest Patents
One of Ohsawa's latest patents is related to a disk drive and its control method. This invention aims to reduce the structural stress applied to the head of the disk drive. By utilizing a heater to adjust the clearance between the head and the disk, the invention achieves effective control. The hard disk controller/microprocessing unit (HDC/MPU) plays a crucial role in controlling the slew rate of the heater during Thermal Fly Height Control (TFC). The HDC/MPU adjusts the output of electric current or voltage based on processing conditions, which helps minimize head stress and optimize TFC. Another aspect of his patent addresses the reduction of errors caused by the aging of the heater. The TFC controller measures the resistance value of the heater at predetermined intervals and determines if it falls within a reference range. If the resistance value is outside this range, the TFC controller initiates error handling procedures, including notifying the host of any detected abnormalities.
Career Highlights
Ohsawa is currently employed at Hitachi Global Storage Technologies Netherlands B.V., where he continues to innovate in the field of storage technology. His work has been instrumental in advancing disk drive performance and reliability.
Collaborations
Throughout his career, Ohsawa has collaborated with notable colleagues, including Noriaki Satoh and Yumi Nagano. These collaborations have contributed to the development of cutting-edge technologies in the disk drive industry.
Conclusion
Toyomi Ohsawa's contributions to disk drive technology exemplify the impact of innovative thinking in engineering. His patents reflect a commitment to improving the functionality and reliability of storage devices. Ohsawa's work continues to influence the industry and pave the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.