Torao Yajima

Title: Torao Yajima: Innovator in Step Motor Technology

Introduction

Torao Yajima is a notable inventor based in Shiojiri, Japan. He has made significant contributions to the field of step motor technology, holding a total of 2 patents. His innovative work has advanced the functionality and control of step motors, which are widely used in various applications.

Latest Patents

Yajima's latest patents include a drive control system for step motors. This system features a detector that identifies when the step motor is central between step positions, producing a timing signal that represents this central position. The motor drive coils are selectively activated by a drive control circuit, which uses the timing signal to ensure the step motor stops at its next designated position. Another significant patent focuses on speed control for step motors. This invention includes a speed control circuit that actuates a motor driving circuit based on timing signals that reflect the incremental advance of the step motor during acceleration. The system stores the time intervals between actuations during acceleration and applies this information in reverse order during deceleration.

Career Highlights

Throughout his career, Torao Yajima has worked with prominent companies, including Epson Corporation and Kabushiki Kaisha Suwa Seikosha. His experience in these organizations has contributed to his expertise in motor control technologies.

Collaborations

Yajima has collaborated with various professionals in his field, including his coworker Yoshifumi Gomi. Their joint efforts have furthered advancements in step motor technology.

Conclusion

Torao Yajima's contributions to step motor technology through his patents and career experiences highlight his role as an influential inventor. His work continues to impact the industry positively.