Location History:
- Tokai, JP (1985 - 1990)
- Tokyo, JP (2006)
Company Filing History:
4 out of 3,563 
1 out of 80 
1 out of 1 Years Active: 1985-2006
Title: Ryoichi Naka: Innovator in Tunnel Engineering and Corrosion Resistance
Introduction
Ryoichi Naka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of tunnel engineering and materials science. With a total of 4 patents, Naka's work focuses on innovative solutions that enhance construction efficiency and material durability.
Latest Patents
One of Naka's latest patents is the "Easily-cuttable tunnel segment structure." This invention relates to a novel design that facilitates the transition of a shield machine from a main tunnel to a branch tunnel. The structure is constructed by connecting multiple easily-cuttable tunnel segment pieces, featuring a join that has an easily-cuttable join structure. This design aims to improve the efficiency of tunnel construction and maintenance.
Another significant patent is the "Corrosion resistant Zn-Cr plated steel strip." This invention involves a plated steel strip that offers enhanced corrosion and rust resistance. It comprises a principal plating layer formed on a steel strip substrate, utilizing a co-deposited zinc-chromium based alloy. This alloy contains more than 5% but not more than 40% by weight of chromium, significantly improving the paint-coating property of the steel.
Career Highlights
Throughout his career, Ryoichi Naka has worked with notable companies such as Nippon Steel Corporation and Taisei Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in engineering and materials.
Collaborations
Naka has collaborated with several talented individuals in his field, including Tatsuya Kanamaru and Motohiro Nakayama. These collaborations have fostered a creative environment that encourages the exchange of ideas and expertise.
Conclusion
Ryoichi Naka's contributions to tunnel engineering and corrosion resistance exemplify the impact of innovation in construction and materials science. His patents reflect a commitment to improving efficiency and durability in engineering applications.