Location History:
- Fuchu, JP (1990 - 2005)
- Fuchu-cho, JP (2005)
- Hiroshima, JP (1986 - 2010)
Company Filing History:
Years Active: 1986-2010
Title: Yutaka Fujii: Innovator in Fastening Technologies
Introduction
Yutaka Fujii is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to the field of fastening technologies, holding a total of 9 patents. His innovative approaches have enhanced the efficiency and reliability of fastening methods in various applications.
Latest Patents
One of Yutaka Fujii's latest patents is a bolt fastening method and apparatus. This invention involves fastening a bolt to a predetermined snug torque Ts and then further tightening it by a specified angle θt. The method calculates the angle-variation difference between the fastening angle θsb and a standard angle θsa to correct any excess or deficiency in the fastening angle. This innovative approach helps to restrain variation in fastening shaft force, even when the snug torque is set at a relatively high level.
Another notable patent is a method for tightening a threaded fastener to clamp a thread-clamped member. In this method, a bearing cap, made of aluminum alloy, is clamped to a cylinder block using flanged hexagonal bolts made of steel. The design ensures that the bearing surface of the raised seat provides a reliable clamping mechanism.
Career Highlights
Yutaka Fujii has worked with notable companies such as Mazda Motor Corporation and Ryobi Limited. His experience in these organizations has allowed him to develop and refine his innovative fastening technologies.
Collaborations
Throughout his career, Yutaka Fujii has collaborated with talented individuals, including Tatsumi Makimae and Hiroshi Shinagawa. These collaborations have contributed to the advancement of his inventions and the development of new technologies.
Conclusion
Yutaka Fujii's contributions to fastening technologies have made a significant impact in the industry. His innovative patents and collaborations reflect his dedication to improving fastening methods. His work continues to influence the field and inspire future innovations.