Isaac Ohsawa

Title: Isaac Ohsawa: Innovator in Gas Monitoring Technology

Introduction

Isaac Ohsawa is a notable inventor based in Kashiwa, Japan. He has made significant contributions to the field of gas monitoring technology, holding a total of three patents. His work focuses on developing advanced apparatuses for detecting and analyzing various gases, including those related to chemical warfare.

Latest Patents

One of his latest inventions is a gas monitoring apparatus that includes a sample introducing portion, a measurement portion, an ionization portion, a mass analysis portion, a data processing portion, and a display. The sample introducing portion is designed to introduce a sample gas containing the object material to be measured. The measurement portion measures the concentration of a predetermined coexisting material that exists alongside the object material in the sample gas. The ionization portion ionizes the sample gas, while the mass analysis portion analyzes the mass of the ions produced. The data processing portion processes the signals detected by the mass analysis portion to calculate the concentration of the object material. Additionally, the display presents the results of the analysis conducted by the data processing portion. Notably, the data processing portion includes an adjustment feature that modifies the concentration of the object material based on the concentration of the predetermined coexisting material.

Another significant patent is a gas monitoring apparatus capable of real-time detection of chemical warfare agents, specifically diphenylcyanoarsine (DC) and diphenylchloroarsine (DA). This apparatus utilizes atmospheric pressure chemical ionization mass spectrometry in positive ionization mode. It determines the total amount of DC and DA from the intensity of a common ion, calculates the DC concentration from a specific ion, and identifies the DA concentration as the difference between the two.

Career Highlights

Isaac Ohsawa has worked with prominent organizations, including Hitachi, Ltd. and the National Research Institute of Police Science. His experience in these institutions has contributed to his expertise in gas monitoring technologies.

Collaborations

Throughout his career, Ohsawa has collaborated with notable colleagues, including Yasuaki Takada and Hisashi Nagano. These collaborations have likely enhanced his research and development efforts in the field.

Conclusion

Isaac Ohsawa is a distinguished inventor whose work in gas monitoring technology has made a significant impact. His innovative patents reflect his commitment to advancing safety and detection methods in critical areas.