Location History:
- Tokyo, JP (1991 - 2003)
- Kawasaki, JP (2000 - 2003)
Company Filing History:
Years Active: 1991-2003
Title: Hiromitsu Takeyasu: Innovator in Polyurethane Foam Technology
Introduction
Hiromitsu Takeyasu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polyurethane foam technology, holding a total of 8 patents. His innovative approaches have led to advancements in the production processes of flexible and thermally insulating foams.
Latest Patents
One of Takeyasu's latest patents is a process for producing flexible polyurethane foam. This process results in a foam that satisfies low resilience, high vibration absorption, and high durability. The method involves reacting a mixture of polyoxyalkylene polyols with a polyisocyanate compound in the presence of a catalyst and a blowing agent. The resulting foam has a resonance frequency of at most 3.7 Hz, a resonance ratio of at most 3.5, and an impact resilience of at most 70%.
Another notable patent is a method for producing a thermally insulating plate. This method includes creating a heat insulating board with two opposed facings and a core made of rigid synthetic resin foam. The foam mix used in this process contains specific polyols, a polyisocyanate, a foam stabilizer, a catalyst, and a blowing agent. The unique composition of the polyol and the method of expanding and curing the foam mix contribute to the effectiveness of the insulating board.
Career Highlights
Hiromitsu Takeyasu is currently associated with Asahi Glass Company, Limited, where he continues to innovate in the field of materials science. His work has not only advanced the technology of polyurethane foams but has also contributed to the broader field of synthetic materials.
Collaborations
Throughout his career, Takeyasu has collaborated with notable colleagues, including Takashi Watabe and Takao Doi. These collaborations have fostered a creative environment that encourages the development of new ideas and technologies.
Conclusion
Hiromitsu Takeyasu's contributions to polyurethane foam technology exemplify the impact of innovative thinking in material science. His patents reflect a commitment to enhancing product performance and sustainability in the industry.