Company Filing History:
2 out of 80 
1 out of 1,858 
1 out of 5 Years Active: 1988-1992
Title: Takafumi Naito: Innovator in Hydraulic Composition and Concrete Structures
Introduction
Takafumi Naito is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of construction materials, particularly in hydraulic compositions and concrete structural members. With a total of 2 patents, Naito's work has advanced the efficiency and effectiveness of concrete applications.
Latest Patents
Naito's latest patents include innovative solutions that enhance the properties of concrete. The first patent, titled "Hydraulic composition, formed products therefrom and segregation," introduces a hydraulic composition that contains a cementitious material in powder form, β-1,3-glucan, and a superplasticizer. This composition allows for the preparation of concrete with high resistance to segregation, high fluidity, and excellent filling ability. As a result, the concrete can be poured without the need for vibration during casting.
The second patent, "Concrete structural member and method for manufacture thereof," describes a method for producing a concrete structural member with improved stability. This involves preparing a concrete composite layer with a concrete layer on one side and an aggregate layer on the other. The composite layer is then impregnated with a monomer, which is thermally or catalytically polymerized. Fresh concrete is placed on the aggregate layer side of the polymer-impregnated composite layer, enhancing the overall stability of the structure.
Career Highlights
Throughout his career, Takafumi Naito has worked with notable companies such as Taisei Corporation and Takeda Chemical Industries, Inc. His experience in these organizations has contributed to his expertise in developing innovative construction materials.
Collaborations
Naito has collaborated with several professionals in his field, including Yasunori Matsuoka and Takefumi Shindoh. These collaborations have fostered a creative environment that has led to the development of groundbreaking inventions.
Conclusion
Takafumi Naito's contributions to hydraulic compositions and concrete structures demonstrate his commitment to innovation in construction materials. His patents reflect a deep understanding of material science and engineering, paving the way for more efficient building practices.