Company Filing History:
4 out of 5 
3 out of 41 
3 out of 3 Years Active: 1997-1999
Title: Hiroyuki Ishii: Innovator in Waterproofing Technologies
Introduction
Hiroyuki Ishii is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of waterproofing technologies, holding a total of 4 patents. His work focuses on developing innovative solutions that enhance the durability and effectiveness of waterproofing materials.
Latest Patents
One of Hiroyuki Ishii's latest patents is a rubber modified asphalt type of waterproofing composition. The objective of this invention is to provide a waterproofing composition that can be utilized in a normal temperature type of spray waterproofing method. This composition is applicable in various areas, including waterproofing, moisture-proofing, rustproofing, and filling buildings and structures for engineering works. The waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. It comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.
Career Highlights
Throughout his career, Hiroyuki Ishii has worked with prominent companies such as Nichireki Co., Ltd. and Obayashi Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced waterproofing technologies.
Collaborations
Hiroyuki Ishii has collaborated with notable coworkers, including Akira Ito and Tsuyoshi Aoyama. These partnerships have played a crucial role in enhancing his innovative projects and expanding his expertise in the field.
Conclusion
Hiroyuki Ishii's contributions to waterproofing technologies demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, making him a valuable figure in the industry.