Company Filing History:
1 out of 1 
1 out of 32 Years Active: 1988-1992
Title: Masaaki Kato: Innovator in Hydraulic Control Systems
Introduction
Masaaki Kato is a notable inventor based in Aichi, Japan, recognized for his contributions to hydraulic control systems. With a total of two patents to his name, Kato has made significant advancements in the field of power steering mechanisms.
Latest Patents
Kato's latest patents include a power steering control valve mechanism and a control valve. The power steering control valve mechanism features a hydraulic pressure switch mechanism that connects the steering shaft to a rack. This innovative design incorporates an input shaft covered with a balance sleeve, forming a sealing portion. The balance sleeve is further covered with a valve outer spool, creating a variable orifice. This mechanism eliminates the need for a valve inner spool, resulting in a compact and efficient structure that enhances hydraulic pressure control while reducing manufacturing costs. The control valve patent describes a valve sleeve and a rotor that is rotatably inserted into the valve sleeve. The valve sleeve contains multiple fluid passages, including through passages and recessed grooves. The rotor's fluid passages align with those of the valve sleeve, allowing for controlled fluid flow. Additionally, the valve sleeve is designed with noise suppression features to minimize fluid flow noise.
Career Highlights
Throughout his career, Masaaki Kato has worked with prominent companies such as TRW Steering & Industrial Products Co., Ltd. and Tokai TRW & Co., Ltd. His experience in these organizations has contributed to his expertise in hydraulic systems and control mechanisms.
Collaborations
Kato has collaborated with notable colleagues, including Yoshihito Imura and Kunio Takeuchi, further enhancing his innovative work in the field.
Conclusion
Masaaki Kato's contributions to hydraulic control systems through his patents demonstrate his commitment to innovation and efficiency in engineering. His work continues to influence the industry and pave the way for future advancements.