Motohiro Tokairin

Title: Motohiro Tokairin: Innovator in Control Apparatus and Brushless Motors

Introduction

Motohiro Tokairin is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of control apparatus and brushless motors, holding a total of 5 patents. His innovative work has impacted various industries, particularly in the realm of image forming technologies.

Latest Patents

One of Tokairin's latest patents is a control apparatus for brushless motors. This apparatus includes a controller that utilizes vector control to manage the voltages and currents supplied to multiple phases of a brushless motor. The vector control is achieved through rotation control, which predominantly uses a q-axis current to regulate the rotor's rotation. Additionally, field fixing control employs a d-axis current in response to a stop command signal, effectively reducing the influence of dead time during operation.

Another significant patent involves an image forming apparatus that features a recording medium positioning portion and control of transport speed. This apparatus includes a positioning portion located upstream of the transfer section in the transport direction of the recording medium. It positions the medium using its leading end and incorporates a detector to sense the passage of the leading end. The controller then adjusts the transport speed based on the time elapsed since the medium began moving from the positioning portion until it reaches a target position downstream.

Career Highlights

Throughout his career, Motohiro Tokairin has worked with prominent companies such as Fuji Xerox Co., Ltd. and Fujifilm Business Innovation Corp. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field.

Collaborations

Tokairin has collaborated with notable individuals in his field, including Toyohiko Hoshino and Yukitoshi Takano. These partnerships have fostered innovation and have led to the development of advanced technologies.

Conclusion

Motohiro Tokairin is a distinguished inventor whose work in control apparatus and brushless motors has made a lasting impact on technology. His patents reflect a commitment to innovation and excellence in engineering.