This inventor holds 1 USPTO granted patent. Top assignee: Kuraray Co., Ltd.. Active years: 1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1995
Title: Yasuhiro Harada: Innovator in Synthetic Fiber Technology
Introduction
Yasuhiro Harada is a notable inventor based in Okayama, Japan. He has made significant contributions to the field of synthetic fibers, particularly through his innovative work with polyvinyl alcohol-based materials. His expertise has led to advancements that enhance the performance and production processes of synthetic fibers.
Latest Patents
Yasuhiro Harada holds a patent for a polyvinyl alcohol-based synthetic fiber. This fiber exhibits excellent performance as a fiber for fiber-reinforced composites (FRC). The patent details a production process that involves autoclave curing, which is crucial for ensuring the dimensional stability of cement products. One of the key processes includes the penetration of a monoaldehyde or a dialdehyde into the fiber's central region, followed by a crosslinking reaction with a mixed solution containing a monoaldehyde and an acid. The other process involves acetalization using a bath with specific concentrations of formaldehyde and sulfuric acid at elevated temperatures. The resulting synthetic fiber boasts a strength of at least 11 g/d, a gel elasticity of at least 6.0 × 10⁻³ g/cm·d, and a dissolution ratio of not more than 40%.
Career Highlights
Yasuhiro Harada is associated with Kuraray Co., Ltd., a company known for its innovative materials and chemicals. His work has significantly impacted the development of synthetic fibers, particularly in applications requiring high strength and stability.
Collaborations
Throughout his career, Harada has collaborated with notable colleagues, including Masakazu Nishiyama and Akio Mizobe. These collaborations have furthered research and development in the field of synthetic fibers.
Conclusion
Yasuhiro Harada's contributions to synthetic fiber technology exemplify the importance of innovation in material science. His patented processes and collaborations have paved the way for advancements that enhance the performance of synthetic fibers in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile