Umeo Doyama

Title: Umeo Doyama: Innovator in Sewing Technology

Introduction

Umeo Doyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of sewing technology, holding a total of 2 patents. His innovative designs have enhanced the functionality and efficiency of sewing machines.

Latest Patents

Doyama's latest patents include a "Sewing machine with electronic controlled stitch pattern generator." This invention features a memory for storing stitch pattern data, multiple pattern selection switches, and a microprocessor that accesses stitch patterns based on the selected switch. The improvement allows for multiple data words stored in memory for each stitch pattern, enabling precise control over the stitch forming mechanism.

Another significant patent is the "Electromagnetic control device for sewing machine." This device utilizes a signal generator to produce a desired stitch pattern signal, which actuates a stitch forming mechanism. It includes an electromagnetic driver with a rotor shaft and stator, generating magnetic fields that interact with magnets on the rotor to position it according to the stitch pattern signal.

Career Highlights

Umeo Doyama is currently associated with Riccar Company, Ltd., where he continues to innovate in sewing technology. His work has been instrumental in advancing the capabilities of modern sewing machines.

Conclusion

Umeo Doyama's contributions to sewing technology through his patents demonstrate his commitment to innovation in the field. His inventions not only improve the functionality of sewing machines but also pave the way for future advancements in the industry.