Company Filing History:
2 out of 1,100 
2 out of 104 
Years Active: 2009-2010
Title: Shigetsugu Yoshida: Innovator in Spring Technology
Introduction
Shigetsugu Yoshida is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of spring technology, holding a total of 2 patents. His work focuses on enhancing the fatigue strength and resistance to sagging in hard-drawn springs.
Latest Patents
Yoshida's latest patents include a spring produced by a process comprising coiling a hard-drawn steel wire that exhibits excellent fatigue strength and resistance to setting. This innovative hard-drawn spring is created using a steel wire containing specific percentages of carbon, silicon, manganese, and chromium, with the balance being iron and inevitable impurities. Additionally, he has developed a steel wire for hard-drawn springs that also demonstrates superior fatigue strength and sag resistance compared to traditional oil-tempered wire springs.
Career Highlights
Throughout his career, Shigetsugu Yoshida has worked with prominent companies such as Kabushiki Kaisha Kobe Seiko Sho and Suncall Corporation. His expertise in materials and spring technology has positioned him as a key figure in the industry.
Collaborations
Yoshida has collaborated with notable coworkers, including Sumie Suda and Nobuhiko Ibaraki. Their combined efforts have contributed to advancements in spring technology and materials science.
Conclusion
Shigetsugu Yoshida's innovative work in spring technology has led to significant advancements in the field. His patents reflect a commitment to improving the performance and durability of springs, making him a valuable contributor to engineering and manufacturing.