Location History:
- Nihonmatsu, JP (2010 - 2012)
- Aso, JP (2015 - 2019)
- Kumamoto, JP (2021)
Company Filing History:
8 out of 776 
2 out of 85 
Years Active: 2010-2021
Title: The Innovations of Shuji Yoshitsune
Introduction
Shuji Yoshitsune is a prominent inventor based in Aso, Japan. He has made significant contributions to the field of sealing devices, holding a total of 8 patents. His innovative designs have enhanced the functionality and reliability of various mechanical systems.
Latest Patents
Yoshitsune's latest patents include a sealing device designed to suppress diameter expansion of an inserted first back-up ring. This sealing device features a seal ring mounted in a rectangular mounting groove, along with a first and second back-up ring. The first back-up ring has an end surface that contacts the opposing-sealing-fluid-side surface of the mounting groove, while the second back-up ring contacts the seal ring. The design ensures that the inner diameter of the first back-up ring is larger than the outer diameter of the contact surface portion of the second back-up ring, and the outer diameter of the first back-up ring is smaller than the inner diameter of a housing.
Another notable patent is a sealing device that incorporates a first and second backup ring, both formed into a triangular cross-section. The first backup ring features an axially vertical end surface portion, a cylindrical peripheral surface portion, and an inclined surface portion. The second backup ring mirrors this design, ensuring compatibility and efficiency in sealing applications.
Career Highlights
Throughout his career, Shuji Yoshitsune has worked with notable companies such as Nok Corporation and Mahle Filter Systems Japan Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced sealing technologies.
Collaborations
Yoshitsune has collaborated with talented individuals in the industry, including Kota Henmi and Kiyohiro Suzuki. These partnerships have fostered innovation and have led to the successful development of various sealing solutions.
Conclusion
Shuji Yoshitsune's contributions to sealing device technology are noteworthy, with a total of 8 patents to his name. His innovative designs and collaborations have significantly impacted the field, showcasing his expertise and dedication to advancing mechanical engineering.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.