Yasuaki Imai

Title: Yasuaki Imai: Innovator in Electromagnetic Rotary Machines

Introduction

Yasuaki Imai is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of electromagnetic rotary machines, holding a total of 3 patents. His work focuses on improving the efficiency and design of electric rotary machines.

Latest Patents

One of Imai's latest patents is an index position detecting apparatus for an electromagnetic rotary machine. This invention addresses issues related to leakage flux and aims to reduce the number of components, resulting in a thinner, smaller, and more cost-effective machine. The apparatus includes a first pulse generating device that produces a first frequency generating signal with uniformly spaced pulses per revolution of the rotor. It also features a magnetic body that generates magnetic flux during the rotor's rotation and a second pulse generating device that detects changes in the magnetic flux. The index position detecting circuit generates an index signal based on the periodic phase difference between the two frequency generating signals.

Another significant patent is a disk drive device designed to reduce thickness. This system comprises a surface opposing type spindle motor, which includes a spindle supported by a chassis and a rotor yoke attached to the spindle. The design incorporates a printed-circuit board with driving coils and a stator yoke, ensuring that the head is housed in a designated opening. The radial bearing used has a diameter greater than that of the spindle, preventing interference between the driving coils and the head's displacement area.

Career Highlights

Yasuaki Imai has worked with prominent companies such as Canon Denshi Kabushiki Kaisha and Canon Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the development of innovative technologies in the field of electromagnetic devices.

Collaborations

Imai has collaborated with notable coworkers, including Toru Okada and Shigeki Koizumi. Their combined efforts have led to advancements in the design and functionality of various electronic devices.

Conclusion

Yasuaki Imai's contributions to the field of electromagnetic rotary machines demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to enhancing the efficiency and design of electric machines, making a lasting impact in the industry.