This inventor holds 1 USPTO granted patent. Top assignee: Denki Kagaku Kogyo Kabushiki Kaisha. Active years: 2014.
Company Filing History:
Years Active: 2014
Title: Tsutomu Kida: Innovator in Cement Admixture Technology
Introduction
Tsutomu Kida is a notable inventor based in Itoigawa, Japan. He has made significant contributions to the field of cement technology, particularly through his innovative patent related to cement admixtures. His work focuses on enhancing the properties of concrete, making it more effective and sustainable.
Latest Patents
Tsutomu Kida holds a patent for a cement admixture and cement composition. This invention provides a cement admixture that improves the ability of concrete to achieve high initial strength. It also enhances the reduction of hexavalent chromium, a harmful substance, and maintains its effectiveness even during storage. The patent includes several key features:
1. A cement admixture comprising an expanding material containing free lime, a hydraulic compound, calcium sulfate anhydrite, and a tin sulfate-containing substance.
2. The tin sulfate-containing substance is present in an amount of 0.2 to 8 parts by mass, calculated on a tin sulfate basis, within a total of 100 parts by mass of the expanding material and the tin sulfate-containing substance.
3. The expanding material is treated with carbon dioxide gas to form calcium carbonate.
4. The expanding material is surface treated with a shrinkage reducer.
5. A cement composition that includes cement and the aforementioned cement admixture.
6. A method for reducing hexavalent chromium using the cement composition.
Career Highlights
Tsutomu Kida is associated with Denki Kagaku Kogyo Kabushiki Kaisha, a company known for its advancements in chemical technology. His work has led to innovative solutions that address environmental concerns related to cement production and usage.
Collaborations
Throughout his career, Tsutomu Kida has collaborated with notable colleagues, including Ryoetsu Yoshino and Takayuki Higuchi. These partnerships have contributed to the development of effective cement admixture technologies.
Conclusion
Tsutomu Kida's contributions to cement technology through his innovative patent demonstrate his commitment to improving construction materials. His work not only enhances the performance of concrete but also addresses environmental challenges, making him a significant figure in the field of innovations in cement admixtures.