Company Filing History:
3 out of 50 
1 out of 1,205 
Years Active: 2017-2022
Title: Innovations of Satoshi Muramatsu
Introduction
Satoshi Muramatsu is a notable inventor based in Atsugi, Japan. He has made significant contributions to the field of pump technology, holding a total of four patents. His work reflects a deep understanding of mechanical engineering and innovation.
Latest Patents
One of his latest patents is a pump device that includes a drive shaft, a pump element, and a pump housing. The housing features a pump element receiving space, first and second bearing receiving spaces, a suction passage, a discharge passage, a return passage, and a seal receiving space. The first bearing supports the drive shaft and includes a first lubrication groove. The second bearing, which supports the drive shaft as well, has a second lubrication groove with a greater sectional area than that of the first bearing. Additionally, a seal member is provided within the seal receiving space to ensure a proper seal between the drive shaft and the pump housing.
Another significant patent is a variable displacement vane pump. This pump consists of a pump housing that includes a driving shaft, a rotor, a plurality of vanes, a cam support surface, a cam ring, an intake port, and a discharge port. The cam ring control mechanism is designed to manage the eccentric amount of the cam ring concerning the rotor. The design of the cam support surface and the cam ring allows for optimized performance when the eccentric amount of the cam ring is maximized.
Career Highlights
Satoshi Muramatsu has worked with prominent companies in the automotive sector, including Hitachi Automotive Systems Steering and Hitachi Astemo. His experience in these organizations has contributed to his expertise in pump technology and mechanical design.
Collaborations
Throughout his career, Muramatsu has collaborated with talented individuals such as Yukio Uchida and Norikazu Kumasaka. These collaborations have likely enriched his work and led to innovative solutions in the field.
Conclusion
Satoshi Muramatsu's contributions to pump technology through his patents and career experiences highlight his role as a significant inventor in the industry. His innovative designs continue to influence the development of efficient pump systems.