Tatsuhide Tsutsui

Title: Innovations of Tatsuhide Tsutsui

Introduction

Tatsuhide Tsutsui is a notable inventor based in Miyanohigashi, Japan. He has made significant contributions to the field of measurement technology, particularly in the development of devices that enhance the accuracy of oil concentration and conductivity measurements. With a total of two patents to his name, Tsutsui's work reflects a commitment to innovation and precision.

Latest Patents

One of Tsutsui's latest patents is an infrared oil-concentration meter. This device includes a sample cell designed to receive an oil sample that can be irradiated with infrared rays from a light source. It features a first interference filter with a design wavelength of 3.4 µm positioned before a measuring detector, while a second interference filter transmits a band range between 1 µm and 5 µm in front of a reference detector. The oil concentration in a sample is determined by calculating the logarithm of the ratio of the reference detector output to the measuring detector output.

Another significant invention is an improved electromagnetic induction-type conductivity meter. This device utilizes primary and secondary transformer coils around a liquid sample passageway. It includes a resistance circuit with a conductive lead line that extends through the coils and runs parallel to the sample passageway. This resistance circuit can be selectively opened and closed, contributing to the measurement voltage detected on the detector coil when the primary coil is excited. The additional resistance voltage can be utilized for calibration and monitoring the condition of the conductivity meter.

Career Highlights

Tsutsui is currently employed at Horiba, Ltd., a company renowned for its advanced measurement and analysis technologies. His work at Horiba has allowed him to focus on developing innovative solutions that address complex measurement challenges in various industries.

Collaborations

Throughout his career, Tsutsui has collaborated with esteemed colleagues, including Shigeyuki Akiyama and Hiroshi Fujii. These collaborations have fostered an environment of innovation and have contributed to the successful development of his patented technologies.

Conclusion

Tatsuhide Tsutsui's contributions to measurement technology through his patents demonstrate his expertise and dedication to innovation. His work continues to impact the field positively, showcasing the importance of precision in scientific measurements.