This inventor holds 9 USPTO granted patents. Top assignees: Hitachi, Ltd., Jidosha Kiki Co., Ltd., Jodosha Kiki Co., Ltd.. Active years: 1996-2013.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Higashimatsuyama, JP (2000)
- Saitama, JP (1996 - 2013)
- Hiki-gun, JP (2013)
Company Filing History:

Years Active: 1996-2013
Title: The Innovative Contributions of Fusao Semba
Introduction
Fusao Semba is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of engineering, particularly in the development of variable capacity vane pumps. With a total of 9 patents to his name, Semba's work has had a lasting impact on various industries.
Latest Patents
Semba's latest patents include advancements in variable capacity vane pumps. One of his innovations features a design with a plurality of vanes that are radially extendably installed in their respective slots arranged in a circumferential direction within a rotor. This design incorporates a cam ring that is rockably provided on a supporting surface in the pump body, forming multiple pump chambers in cooperation with the rotor and the vanes. Additionally, a seal member is included at the outer circumference of the cam ring, defining hydraulic pressure chambers that manage the pump discharge amount effectively. Another patent details the specific geometry and reference lines that optimize the performance of the vane pump, ensuring that the lines remain substantially parallel to enhance efficiency.
Career Highlights
Throughout his career, Fusao Semba has worked with prominent companies such as Hitachi, Ltd. and Jidosha Kiki Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant technological advancements.
Collaborations
Semba has collaborated with notable coworkers, including Shigeaki Yamamuro and Hideo Konishi. Their combined expertise has fostered an environment of innovation and creativity in their projects.
Conclusion
Fusao Semba's contributions to the field of engineering, particularly through his patents on variable capacity vane pumps, demonstrate his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future inventors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile