Company Filing History:
Years Active: 1988-1991
Title: Ryoichi Nakashima: Innovator in Submersible Technology
Introduction
Ryoichi Nakashima is a notable inventor based in Funabashi, Japan. He has made significant contributions to the field of submersible technology, holding a total of 2 patents. His innovative designs focus on enhancing the performance and reliability of submersible motors and thrust bearing apparatuses.
Latest Patents
Nakashima's latest patents include a submersible thrust bearing apparatus and a submersible motor. The submersible thrust bearing apparatus features a ring-like form plate body with multiple rib members. These rib members create a wedge-shaped form clearance that maintains performance under varying thrust loads. This design ensures that the dynamic pressure and water film formation are optimized, preventing temperature increases between the sliding faces of the thrust runner and thrust bearing.
The submersible motor patent describes a rotor chamber filled with liquid, supported by sleeve bearings. A diaphragm controls the pressure within the rotor chamber, while additional chambers accommodate reserve liquid. This design allows for continuous lubrication and cooling, even under pressure fluctuations.
Career Highlights
Ryoichi Nakashima is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop cutting-edge solutions that address the challenges faced in submersible applications.
Collaborations
Nakashima has collaborated with notable coworkers, including Kooji Aizawa and Katsutoshi Nii. Their combined expertise has contributed to the advancement of submersible technologies.
Conclusion
Ryoichi Nakashima's contributions to submersible technology through his innovative patents demonstrate his commitment to enhancing engineering solutions. His work continues to influence the industry and improve the performance of submersible systems.