Location History:
- Shinminato, JP (2000)
- Toyama, JP (2015)
Company Filing History:
2 out of 13 
1 out of 1,886 
Years Active: 2000-2015
Title: Junji Yoshida: Innovator in Shearing Die Technology
Introduction
Junji Yoshida is a notable inventor based in Toyama, Japan. He has made significant contributions to the field of manufacturing, particularly in the development of advanced shearing dies and cold tool steels. With a total of two patents to his name, Yoshida's work reflects a commitment to innovation and quality in engineering.
Latest Patents
Yoshida's latest patents include a shearing die and a method for manufacturing the same. This invention provides a shearing die with an extended lifespan, featuring a pair of substrates. At least one of these substrates has a hard film formed by an arc ion plating method, strategically located on a curved surface and adjacent regions. The hard film consists of aluminum and one or more elements such as titanium and chromium, with a thickness ranging from 1 to 5 micrometers. This design ensures that the number of metal particles with a diameter of 20 micrometers or more is minimized to two or less over a specified length. Additionally, he has developed cold tool steel that boasts high size stability and wear resistance. This steel is characterized by superior machinability and minimized heat treatment size change, achieved by carefully specifying the components and their contents.
Career Highlights
Throughout his career, Junji Yoshida has worked with prominent companies such as Nippon Koshuha Steel Co., Ltd. and Kobe Steel, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in manufacturing technologies.
Collaborations
Yoshida has collaborated with notable coworkers, including Kenji Yamamoto and Yasuhiro Hayashida. Their combined expertise has likely fostered an environment of innovation and creativity in their projects.
Conclusion
Junji Yoshida's contributions to the field of manufacturing, particularly through his patents on shearing dies and cold tool steels, highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in engineering.