Company Filing History:
4 out of 1,504 
1 out of 42,517 
Years Active: 1984-1988
Title: Nobuya Okabe: Innovator in Hydraulic Control Systems
Introduction
Nobuya Okabe is a prominent inventor based in Tsuchiura, Japan, known for his significant contributions to hydraulic control systems in construction machinery. With a total of five patents to his name, Okabe has developed innovative solutions that enhance the efficiency and functionality of hydraulic systems.
Latest Patents
One of Okabe's latest patents is a control system for hydraulic construction machinery. This system includes a prime mover, variable displacement pumps, and actuators, all designed to optimize the operation of hydraulic machinery. The system features a maximum revolution number altering device and a maximum displacement volume altering device, which are controlled by an information provider device. This ensures that the maximum number of revolutions and displacement volume are adjusted according to the operation mode, preventing changes in the quantity of pumped fluid during operation.
Another notable patent is a control system specifically designed for hydraulic excavators. This system incorporates a prime mover, revolution number control device, and variable displacement hydraulic pumps. It allows for the selection of operation modes for each working element, providing a range of combinations for maximum revolution numbers and displacement volumes. This flexibility enhances the performance of hydraulic machinery in various operational conditions.
Career Highlights
Throughout his career, Nobuya Okabe has worked with leading companies in the industry, including Hitachi Construction Machinery Co., Ltd. and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in hydraulic systems and control technologies.
Collaborations
Okabe has collaborated with notable colleagues such as Akira Tatsumi and Toichi Hirata. These partnerships have fostered innovation and development in the field of hydraulic machinery.
Conclusion
Nobuya Okabe's work in hydraulic control systems has made a significant impact on the construction machinery industry. His innovative patents and collaborations highlight his dedication to advancing technology in this field.