Company Filing History:
Years Active: 2001-2008
Title: Keishi Koizumi: Innovator in Retroreflective Technology
Introduction
Keishi Koizumi is a notable inventor based in Settsu, Japan. He has made significant contributions to the field of retroreflective materials, holding a total of 2 patents. His work focuses on enhancing the performance and characteristics of retroreflective sheeting and films.
Latest Patents
One of Koizumi's latest patents is for a retroreflection sheeting and film designed for use in retroreflection sheeting. The objective of this invention is to provide a retroreflective sheeting that maintains proper retroreflection even at small incident angles, minimizing halation while exhibiting superior incident angularities and direction characteristics. This innovative sheeting is achieved by forming reflective elements in a specific triangular pyramidal frustum configuration on one surface. The design parameters include specific measurements for the bottom surface and edges, ensuring optimal performance.
Another significant patent by Koizumi involves a methacrylic acid ester resin composition and the film made from it. This composition boasts excellent processability and is capable of producing films with outstanding impact resistance, transparency, weatherability, solvent resistance, and plasticizer migration resistance. The formulation includes a crosslinked acrylate elastomer and an alkyl methacrylate polymer, which together create molded articles with desirable properties.
Career Highlights
Keishi Koizumi is associated with Kaneka Corporation, where he has been instrumental in advancing the company's research and development efforts in innovative materials. His expertise in retroreflective technology has positioned him as a key figure in the industry.
Collaborations
Throughout his career, Koizumi has collaborated with notable colleagues such as Shigemi Matsumoto and Takao Okimi. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Keishi Koizumi's contributions to retroreflective technology through his innovative patents highlight his role as a significant inventor in the field. His work continues to influence advancements in materials science and engineering.