Company Filing History:
1 out of 14 
1 out of 150 
Years Active: 2009
Title: Hiroyoki Atsumi: Innovator in Groundwater Monitoring Systems
Introduction
Hiroyoki Atsumi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of groundwater monitoring through his innovative patent. His work focuses on enhancing the design and operation of groundwater monitoring systems, which are crucial for environmental monitoring and resource management.
Latest Patents
Atsumi holds a patent for "Systems and methods for installation, design and operation of groundwater monitoring systems in boreholes." This invention introduces a coaxial gas displacement pump equipped with a unique O-ring assembly. This assembly functions as a two-position valve for groundwater purging and sampling, while also serving as a housing and sealing mechanism for isolating an optical pressure sensor. The optical sensor is designed to measure in-situ hydraulic pressure directly adjacent to surrounding rock fractures and sediment pores. This innovative approach minimizes hydraulic interferences, providing more accurate readings without the lag time associated with traditional methods.
Career Highlights
Throughout his career, Hiroyoki Atsumi has worked with prominent companies such as Besst, Inc. and Kajima Corporation. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in groundwater monitoring technology.
Collaborations
Atsumi has collaborated with notable professionals in his field, including Noah R. Heller and Masaru Toida. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Hiroyoki Atsumi's contributions to groundwater monitoring systems exemplify the importance of innovation in environmental technology. His patent reflects a commitment to improving the accuracy and efficiency of monitoring systems, which is vital for sustainable resource management. His work continues to influence the field and inspire future advancements.