Motoi Yagi

Title: Motoi Yagi: Innovator in Scanner Technology and Electronic Weighing Instruments

Introduction

Motoi Yagi is a notable inventor based in Zushi, Japan. He has made significant contributions to the fields of scanner technology and electronic weighing instruments. With a total of 5 patents to his name, Yagi's innovations have had a lasting impact on various industries.

Latest Patents

One of Yagi's latest patents is a scanner motor controller designed for controlling the rotating speed of a scanner. This device is particularly useful in laser printers, where a polygonal rotating mirror reflects a laser beam for scanning operations. The scanner motor controller features a rotating speed control circuit that maintains a constant rotating speed based on phase and frequency deviations of a FG pulse signal generated by the scanner motor. Additionally, it includes a rotating speed varying circuit that adjusts the motor's speed within one turn of the polygonal rotating mirror.

Another significant invention by Yagi is an electronic weighing instrument of the electrostatic capacity type. This innovative device addresses the challenges posed by environmental conditions, such as ambient temperature and humidity, which can affect the accuracy of weight measurements. The instrument consists of a pair of capacitors whose capacitances are differentially varied by a load displacement. These capacitors are alternately connected to an oscillating circuit, allowing for precise calculations of weight values based on oscillation frequencies.

Career Highlights

Throughout his career, Motoi Yagi has worked with prominent companies, including Tokyo Electric Co. and Fuji Photo Film Company, Limited. His experience in these organizations has contributed to his expertise in developing advanced technologies.

Collaborations

Yagi has collaborated with notable colleagues, including Tadao Miyabayashi and Shoichi Sato. Their combined efforts have furthered the development of innovative technologies in their respective fields.

Conclusion

Motoi Yagi's contributions to scanner technology and electronic weighing instruments highlight his role as a significant inventor. His patents reflect a commitment to innovation and problem-solving in technology.