This inventor holds 62 USPTO granted patents and 1 published patent application and 4 EPO patents, primarily in Refrigeration Control (CPC class F25B). Top assignees: Tgk Co., Inc., Nihon Radiator Co., Ltd., Calsonic Corporation. Active years: 1986-2016.
Inventors with similar research interests:
Location History:
- Hachioji, JP (1986 - 2007)
- Tokyo, JP (1988 - 2016)
Company Filing History:
61 out of 139 
2 out of 49 
1 out of 126 Years Active: 1986-2016
Areas of Expertise:
Title: Hisatoshi Hirota: A Pioneer in Control Valve Technology
Introduction
Hisatoshi Hirota, based in Tokyo, Japan, is an accomplished inventor with a remarkable portfolio of 62 patents. His innovative work primarily revolves around advanced control valves, showcasing his contributions to fluid dynamics and automation in engineering.
Latest Patents
Among Hisatoshi Hirota's latest inventions are two pivotal control valve designs. The first is a "Control Valve Driven by Stepping Motor," which features a sophisticated body equipped with valve holes that facilitate communication between an inlet port and outlet ports. This innovative design incorporates a stepping motor that drives valve elements to open and close by converting rotational movements into translational movements. The unique setup allows for enhanced precision in valve operation.
The second patent, titled "Control Valve for Variable Displacement Compressor," involves a comprehensive system that efficiently manages the flow of fluids within a compressor. This design includes a body with various communicating ports and a solenoid that drives the main valve based on the supplied current. The incorporation of a power element allows it to resist solenoidal forces effectively, ensuring optimal performance.
Career Highlights
Throughout his illustrious career, Hisatoshi Hirota has contributed significantly to the industry. He has worked with notable companies such as Tgk Co., Inc. and Nihon Radiator Co., Ltd., where he has applied his expertise in developing state-of-the-art control systems. His continuous quest for innovation has made him a respected figure within the engineering community.
Collaborations
Hirota has collaborated with esteemed professionals in the field, including Tokumi Tsugawa and Katsumi Koyama. These partnerships have not only enriched his work but have also fostered a collaborative environment conducive to groundbreaking inventions within the industry.
Conclusion
Hisatoshi Hirota stands out as a prominent inventor in the realm of control valve technology. With his extensive patent portfolio and successful collaborations, he continues to impact the field significantly. His dedication to innovation exemplifies the spirit of engineering excellence, making him a noteworthy figure in today's technological landscape.