Location History:
- Osaka, JP (1992)
- Sakai, JP (2019)
Company Filing History:
2 out of 2,703 
1 out of 393 
Years Active: 1992-2019
Title: Masaru Kumatani: Innovator in Hydraulic Systems
Introduction
Masaru Kumatani is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of hydraulic systems, holding a total of 2 patents. His work focuses on enhancing the efficiency and functionality of hydraulic systems used in work machines.
Latest Patents
Kumatani's latest patents include a hydraulic system for work machines and a hydraulic circuit with a switchover valve. The hydraulic system patent describes a configuration that includes a first switch valve and a first return circuit. This system allows for switching between a confluent position and an isolation position, optimizing the connection and disconnection of operation fluid tubes. The hydraulic circuit patent is designed for use with backhoe implements and features a relief pressure switchover device. This device enables the circuit to automatically adjust between low and high relief pressures based on the load conditions of the third pump.
Career Highlights
Throughout his career, Kumatani has worked with prominent companies such as Kubota Corporation and KYB Corporation. His experience in these organizations has allowed him to develop innovative solutions that address the challenges faced in hydraulic system design and implementation.
Collaborations
Kumatani has collaborated with notable coworkers, including Kazuyoshi Arii and Yoshimitsu Tanaka. These partnerships have contributed to the advancement of hydraulic technology and the successful development of his patented inventions.
Conclusion
Masaru Kumatani's contributions to hydraulic systems demonstrate his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of hydraulic mechanics and a desire to improve work machine efficiency.