Company Filing History:
1 out of 475 
1 out of 7 Years Active: 2011
Title: Tooru Shiraiwa: Innovator in Reinforcement Joint Technology
Introduction
Tooru Shiraiwa is a notable inventor based in Itoigawa, Japan. He has made significant contributions to the field of construction materials, particularly in the development of innovative filling materials for reinforcing joints.
Latest Patents
Shiraiwa holds a patent for a filling material designed for reinforcing joints and a construction method associated with it. This invention ensures excellent fluidity and retention, while also exhibiting an appropriate length change ratio and high strength performance. The filler comprises a combination of cement, an expanding material, pozzolana micropowder, a water-reducing agent, and sand. The expanding material utilized is a calcium aluminoferrite expanding material, while the pozzolana micropowder is characterized by a silicon dioxide content of 90% or higher. The water-reducing agent is a polycarboxylic acid, and the sand used is a high-density variant.
Career Highlights
Throughout his career, Tooru Shiraiwa has worked with prominent companies such as Denki Kagaku Kogyo Kabushiki Kaisha and Splice Sleeve Japan, Ltd. His experience in these organizations has contributed to his expertise in the field of construction materials.
Collaborations
Shiraiwa has collaborated with notable coworkers, including Tetsuo Otsuka and Tooru Yagi. Their joint efforts have likely enhanced the development and application of innovative materials in construction.
Conclusion
Tooru Shiraiwa's contributions to the field of reinforcement joint technology highlight his innovative spirit and dedication to improving construction materials. His patent reflects a significant advancement in ensuring the strength and reliability of construction joints.