Company Filing History:
Years Active: 1991-1992
Title: Innovations by Koji Tsutsuta
Introduction
Koji Tsutsuta is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of electrical conductivity measurement, holding two patents that showcase his innovative approach to technology. His work is primarily associated with Hitachi, Ltd., where he continues to develop advanced solutions.
Latest Patents
Tsutsuta's latest patents include an "Apparatus for Measuring Electrical Conductivity" and a "Conductivity Detector." The apparatus for measuring electrical conductivity features multiple electrodes placed in a liquid within a measuring cell. An alternating current (a.c.) voltage is applied between these electrodes, allowing for the measurement of electrical conductivity by detecting the current flowing between them. This device incorporates a reference a.c. voltage source with adjustment capabilities to modify the magnitude and phase of the signal current, effectively canceling out background conductivity.
The conductivity detector consists of an a.c. voltage supply and control circuit that applies a predetermined a.c. voltage to a pair of electrodes situated in a cell filled with electrolyte. It also includes a correction signal generating circuit that produces an a.c. reference signal. During the auto-zero adjustment operation, the output a.c. current signal flowing through the electrolyte is detected, and this current is combined with the a.c. reference signal. Prior to measuring conductivity, the amplitude of the a.c. reference signal is adjusted until the combined signal reduces to zero.
Career Highlights
Throughout his career, Koji Tsutsuta has demonstrated a commitment to innovation and excellence in his field. His work at Hitachi, Ltd. has positioned him as a key player in the development of advanced measurement technologies. His patents reflect a deep understanding of electrical engineering principles and a dedication to improving measurement accuracy.
Collaborations
One of Tsutsuta's notable collaborators is Kiwao Seki. Their partnership has likely contributed to the successful development of innovative technologies in their respective fields.
Conclusion
Koji Tsutsuta's contributions to electrical conductivity measurement through his patents highlight his innovative spirit and technical expertise. His work continues to influence advancements in measurement technology, making a significant impact in the industry.