Ryuichi Koiso

Title: **Innovative Contributions of Ryuichi Koiso in Encoder Technology**

Introduction

Ryuichi Koiso, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to the field of encoder technology. With a total of four patents to his name, Koiso's work focuses on improving the precision and efficiency of origin location detection circuits and encoder output interpolation methods.

Latest Patents

Koiso's latest patents showcase innovative advancements in encoder technology. One of his notable inventions is the "Origin Location Detection Circuit," which enhances the accuracy of origin detection in encoders. This circuit incorporates a comparator that generates an origin signal based on the output voltage from a detection head, affected by the origin pattern on the scale. It also includes a DC voltage detection circuit for smoothing the output and a differential amplifier to enhance the signal quality.

Another significant patent is the "Method and Circuit for Interpolating Encoder Output." This method utilizes two-phase sinusoidal signals output from the encoder, processed through sample-and-hold circuits and A/D conversion. By incorporating a direction discrimination up/down counter near the pulse generating circuit, Koiso's invention minimizes synchronization errors and improves dynamic precision in output data.

Career Highlights

Ryuichi Koiso's career at Mitutoyo Corporation has been marked by a commitment to innovation and excellence in encoder technology. His contributions to the company have solidified its reputation as a leader in precision measurement and automation solutions.

Collaborations

Koiso has collaborated with talented coworkers such as Tetsuro Kiriyama and Toshirou Yoshinaka. Together, they work towards advancing the company's technological capabilities and paving the way for future innovations in measurement and control technologies.

Conclusion

As an inventor, Ryuichi Koiso has demonstrated a remarkable ability to develop solutions that enhance the performance and accuracy of encoders. His patents not only reflect his ingenuity but also contribute to the ongoing evolution of measurement technology at Mitutoyo Corporation. With a focus on innovation, Koiso continues to inspire the next generation of engineers and inventors in the field.