Location History:
- Fuchu-cho, JP (2005)
- Hiroshima, JP (2008)
Company Filing History:
Years Active: 2005-2008
Title: Hiroshi Shinagawa: Innovator in Bolt Tightening Technology
Introduction
Hiroshi Shinagawa is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of bolt tightening technology, holding a total of 2 patents. His innovative methods and apparatus have improved the efficiency and effectiveness of bolt tightening processes.
Latest Patents
Hiroshi's latest patents include a bolt tightening method and a bolt tightening apparatus. The bolt tightening method involves tightening a bolt with a snug torque T, followed by a total turning angle θ that combines an initial-set turning angle θ and a corrective additional-turning angle (θ + θ). This corrective angle is further divided into two components: the first corrective additional-turning angle θ compensates for discrepancies in the bolt turning angle during the late tightening stage, while the second corrective additional-turning angle θ addresses the decrease in effective bolt axial force due to the initial tightening stage. The bolt tightening apparatus utilizes a device that calculates torque gradients based on the ratio of tightening torque to turning angle, allowing for precise control of the tightening process.
Career Highlights
Hiroshi Shinagawa is currently employed at Mazda Motor Corporation, where he applies his expertise in engineering and innovation. His work has been instrumental in enhancing the company's manufacturing processes and product reliability.
Collaborations
Hiroshi collaborates with talented coworkers, including Tatsumi Makimae and Yutaka Fujii. Their combined efforts contribute to the advancement of technology within the automotive industry.
Conclusion
Hiroshi Shinagawa's contributions to bolt tightening technology exemplify the impact of innovation in engineering. His patents reflect a commitment to improving manufacturing processes and ensuring product quality.