Location History:
- Takatsuki, JP (2002 - 2006)
- Koka, JP (2005 - 2010)
- Koka-Gun, JP (2011 - 2013)
Company Filing History:
Years Active: 2002-2013
Title: Discovering the Innovations of Inventor Kiyofumi Toyama
Introduction
Kiyofumi Toyama, an accomplished inventor based in Koka-gun, Japan, has made significant contributions to the field of laminated glass technology. With a total of eight patents to his name, Toyama is recognized for his innovative approaches that enhance the performance of materials in various applications.
Latest Patents
One of Toyama's latest patents focuses on an interlayer film for laminated glass, designed to mitigate the slump in Transmission Loss (TL) value, while also improving sound insulation performance across a broad temperature range. This interlayer film comprises a blend of a specific polyacetal resin, featuring two distinct average polymerization degrees, and a plasticizer. The innovative composition achieves an acetalization degree of 60 to 85 mol % and an acetyl group content ranging from 8 to 30 mol %. Furthermore, this film exhibits a unique temperature dependence of loss tangent, where the lowest-temperature maximum appears at 30°C or lower during dynamic viscoelasticity testing.
Career Highlights
Throughout his career, Kiyofumi Toyama has been a key member of Sekisui Chemical Co., Ltd., where he has been instrumental in driving advancements in material science and technology. His work has not only garnered patents but has also contributed to the company's reputation as a leader in innovative solutions for construction and related industries.
Collaborations
Working alongside talented colleagues such as Yoshio Aoshima and Chikao Shimizu, Toyama has fostered a collaborative environment that promotes the sharing of ideas and enhances the innovation process. Together, they have tackled complex challenges in the development of new products, resulting in patents that push the boundaries of technology.
Conclusion
Kiyofumi Toyama stands out as a remarkable inventor whose contributions to the laminated glass sector continue to influence the industry. With his impressive portfolio of patents and a commitment to innovation, Toyama exemplifies the spirit of creativity and engineering excellence that drives advancements in material technology.