This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: W. R. Grace Co.-Conn.. Active years: 2004.
Location History:
- Machido, JP (2004)
- Tokyo, JP (2004)
Company Filing History:
Years Active: 2004
Title: Innovations by Keiichi Kosuge in Tunnel Waterproofing
Introduction
Keiichi Kosuge is a notable inventor based in Machida, Japan. He has made significant contributions to the field of tunnel waterproofing, holding 2 patents that showcase his innovative approaches to construction methods.
Latest Patents
His latest patents include a tunnel waterproofing method that involves spraying a primary coating of concrete onto the excavation surface of a tunnel. This method also incorporates a waterproofing sheet with an adhesive layer that bonds with the concrete. Additionally, a secondary coating of concrete is sprayed against the adhesive side of the waterproofing sheet. A buffer water conducting sheet is preferably established between the primary concrete coating and the waterproofing sheet to enhance effectiveness.
Another significant patent is a tunnel waterproofing construction method designed to avoid issues such as dripping and fogging during spray application. This method eliminates the use of organic solvents and unpleasant odors while preventing cracking. It provides superior workability and economic advantages. The process involves spraying a primary spray cement concrete onto the excavated tunnel surface, followed by the application of an ambient-temperature vulcanization-type rubber emulsion to form a rubber film. A secondary concrete coating is then established on the rubber surface, ensuring a robust waterproofing solution.
Career Highlights
Keiichi Kosuge is currently associated with W. R. Grace Co. in Connecticut, where he continues to develop innovative solutions in construction and waterproofing technologies. His work has significantly impacted the efficiency and effectiveness of tunnel construction projects.
Collaborations
He collaborates with Sachio Shimizu, contributing to advancements in their field through shared expertise and innovative ideas.
Conclusion
Keiichi Kosuge's contributions to tunnel waterproofing through his patents reflect his commitment to innovation and excellence in construction methods. His work continues to influence the industry positively.