Company Filing History:
2 out of 18 
1 out of 10,250 
Years Active: 2011-2018
Title: Takashi Ichiki - Innovator in Prestressed Concrete Technology
Introduction
Takashi Ichiki is a distinguished inventor based in Itami, Japan, known for his innovative contributions to the field of prestressed concrete technology. With a total of two patents, Ichiki has developed groundbreaking materials and techniques that enhance the performance and durability of construction materials.
Latest Patents
Ichiki's latest patents include the invention of a pregrouted PC steel material and a method for hardening the pregrout layer. This pregrouted PC steel material features a PC steel stranded wire composed of multiple steel wires, a protective pregrout layer, a covering sheath, and a unique capsule containing a pregrout-hardening agent. The capsule is ingeniously designed to withstand tension during the initial processes but breaks under tensile force during the application, allowing for effective hardening of the pregrout layer.
Furthermore, he has developed a high-strength prestressing strand characterized by a seven-wire structure, comprising one core wire and six outer wires. This innovative design boasts an external diameter ranging from 15.0 mm to 16.1 mm, with a total cross-sectional area of 135 mm² or more. The prestressing strand has remarkable strength properties, including a load at 0.2% permanent elongation of 266 kN or more, making it ideal for demanding construction applications.
Career Highlights
Ichiki has made significant strides in his career, working with notable companies such as Sumitomo Steel Wire Corporation and Sumitomo Electric Industries, Limited. His experience and technical expertise have enabled him to drive innovations in the engineering and construction sectors.
Collaborations
Throughout his career, Ichiki has collaborated with talented individuals such as Tomoya Maekawa and Toshihiko Niki. These partnerships have fostered a creative environment, allowing for the exchange of ideas and the advancement of technology in their field.
Conclusion
In summary, Takashi Ichiki stands out as an influential inventor in prestressed concrete technology. His patents reflect a commitment to innovation and enhancing construction materials, proving crucial for the advancement of engineering practices. Through his work, Ichiki continues to pave the way for future developments in the industry.