Location History:
- Hyogo, JP (2013 - 2016)
- Himeji, JP (2012 - 2018)
- Tokyo, JP (2015 - 2019)
- Oita, JP (2019)
Company Filing History:
7 out of 1,098 
2 out of 3,542 Years Active: 2012-2019
Title: Junji Haji: Innovator in Steel Processing Technologies
Introduction
Junji Haji is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of steel processing, holding a total of 9 patents. His work focuses on improving the efficiency and effectiveness of punching methods and the production of hot-rolled steel sheets.
Latest Patents
One of his latest patents is related to tooling for punching steel sheets. This invention involves a die and projecting punch that forms a worked material of steel sheet into a predetermined outer shape. The tooling for punching features a radius of curvature of the die cutting edge ranging from 0.03 mm to 0.2 mm. Additionally, the angle formed by a tangent drawn from the punch cutting edge to the projection shoulder is between 12° and 72°. This innovation enhances the punching method and shaping process. Another notable patent involves a hot-rolled steel sheet with a specific chemical composition and microstructure. This steel sheet includes carbon, manganese, and silicon, with a microstructure that consists of ferrite, martensite, and pearlite. The invention aims to improve the expandability of punching holes in the steel sheet.
Career Highlights
Junji Haji has worked with notable companies in the steel industry, including Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in steel processing technologies.
Collaborations
Some of his coworkers include Osamu Kawano and Kaoru Kawasaki. Their collaboration has contributed to the advancement of technologies in the steel industry.
Conclusion
Junji Haji's contributions to the field of steel processing through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in manufacturing processes.
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.