Company Filing History:
4 out of 155 
3 out of 42,508 
2 out of 222 Years Active: 1998-2016
Title: Fujio Yoshikubo - Innovator in Preventive Maintenance Technology
Introduction
Fujio Yoshikubo is an inventor based in Mito-shi, Japan. He is known for his innovative approach to preventive maintenance technology, particularly in the context of piping systems. His work focuses on enhancing the efficiency and effectiveness of maintenance processes in industrial settings.
Latest Patent Applications
Yoshikubo's notable patent application is for a "Preventive Maintenance Apparatus and Preventive Maintenance Method for Inner Surface of Piping." This apparatus features a movable body equipped with a water jet peening apparatus (WJP apparatus). The movable body is designed to install a jet nozzle for driving and floating bodies on a base body. It operates by being suspended in cooling water within a reactor pressure vessel, where it jets high-pressure water from a pump through the nozzle. This innovative design allows the movable body to advance through the cooling water and into a pipe connected to the reactor pressure vessel. The buoyancy of the floating bodies is adjusted to control the posture of the movable body, enabling it to navigate through curved pipe sections effectively. The high-pressure water is jetted from the WJP apparatus to maintain the inner surface of vertical pipe portions.
Conclusion
Fujio Yoshikubo's contributions to preventive maintenance technology demonstrate his commitment to improving industrial processes. His innovative patent application reflects a significant advancement in the maintenance of piping systems.