Company Filing History:
Years Active: 2012
Title: Isamu Hashimoto: Innovator in Disk Drive Technology
Introduction
Isamu Hashimoto is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of disk drive technology, particularly in the area of vibration reduction.
Latest Patents
Hashimoto holds a patent for a "Disk drive device with vibration reduction of second order rocking-mode resonance." This innovative design addresses the challenges associated with brushless motors. The patent outlines that the rotational frequency N (Hz) of the hub must satisfy the condition N < F/(3*P+2). Here, F (Hz) represents the Eigen frequency of the second order rocking-mode resonance when the recording disk is mounted on the hub. The design includes a base plate that rotatably supports the hub, a laminated core fixed to the base, and coils wound around the plurality of teeth. The coils are three-phase driven, and a cylindrical magnet is fixed to the hub, which is magnetized for driving with P poles along the circumferential direction.
Career Highlights
Hashimoto is currently employed at Alphana Technology Co., Ltd., where he continues to innovate in the field of disk drive technology. His work has been instrumental in advancing the performance and reliability of disk drives.
Collaborations
Throughout his career, Hashimoto has collaborated with talented individuals such as Takanori Watanabe and Hiroshi Iwai. These collaborations have contributed to the development of cutting-edge technologies in their field.
Conclusion
Isamu Hashimoto's contributions to disk drive technology, particularly through his patented innovations, highlight his role as a key figure in the industry. His work continues to influence advancements in technology and improve the performance of disk drives.