This inventor holds 8 USPTO granted patents and 1 published patent application, plus 2 CIPO patents and 3 EPO patents. Top assignees: Ihi Corporation, Ishikawajima-Harima Heavy Industries Co., Ltd.. Active years: 2009-2025.
Company Filing History:


Years Active: 2009-2025
Title: Seiei Masuda: Innovator in Spool Valve Technology
Introduction
Seiei Masuda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the development of spool valve technology. With a total of 8 patents to his name, Masuda's work has had a considerable impact on various industries.
Latest Patents
One of Masuda's latest inventions is a spool valve that features a sleeve extending in an axial direction, which includes inlet and outlet ports for working fluid. The spool is housed within the sleeve and is equipped with a biasing device that presses the base end of the spool toward its tip end. Additionally, the valve includes a pressure detecting port that opens toward the tip end. The spool itself consists of first and second land sections, with a groove section connecting the inlet and outlet ports. A recess portion is formed on the outer peripheral surface of the second land section, along with a connection passage for the working fluid. This innovative design enhances the efficiency and functionality of spool valves.
Career Highlights
Throughout his career, Seiei Masuda has worked with notable companies such as IHI Corporation and Ishikawajima-Harima Heavy Industries Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various engineering projects.
Collaborations
Masuda has collaborated with esteemed colleagues, including Yasushi Matsunaga and Kenji Takamiya. These partnerships have fostered innovation and have led to advancements in the technologies they have developed together.
Conclusion
Seiei Masuda's contributions to spool valve technology and his collaborations with industry professionals highlight his importance as an inventor. His innovative designs continue to influence the engineering landscape, showcasing the value of creativity and expertise in the field.