Location History:
- Osaka, JA (1977)
- Osaka, JP (1983 - 1995)
Company Filing History:
14 out of 1,858 
1 out of 8 Years Active: 1977-1995
Title: Yoshio Kamatani: Innovator of Polymer Compositions
Introduction
Yoshio Kamatani, based in Osaka, Japan, is a distinguished inventor who holds a remarkable portfolio of 15 patents. His innovative spirit and expertise have led to significant contributions in the field of polymer chemistry, particularly focusing on polyurethane resins and their applications.
Latest Patents
Among his latest inventions are innovative compositions for carpet backings. This composition for carpet backings encompasses a method for producing polyurethane resins that are curable at low temperatures in a short time. The process involves reacting a compound featuring a 1-oxa-3,5-diazine-2,4,6-trione ring with isocyanate groups. For example, a reaction product of an aliphatic, alicyclic, or aralkyl polyisocyanate, such as hexamethylene diisocyanate, is combined with carbon dioxide and a compound that has active hydrogen, like polyester polyol. The reaction takes place in the presence of a tert-amine, such as trimethylamine, in the gaseous phase, at temperatures ranging from 0 to 100 degrees Celsius. The innovative ratio of the sum of the trione ring and isocyanate group numbers to that of the active hydrogen is between 0.1 to 10.
Career Highlights
Throughout his career, Kamatani has made impactful contributions while working at prominent companies, including Takeda Chemical Industries, Inc. and Takeda Chemical Ind., Ltd. His work has shaped advancements in polymer technology, establishing him as a key figure in the industry.
Collaborations
In his journey as an inventor, Kamatani has collaborated with esteemed colleagues such as Noriaki Fujita and Michio Tanaka. These partnerships have enriched his research and development efforts, leading to innovative solutions in his field.
Conclusion
Yoshio Kamatani's extensive contributions to polymer chemistry and his innovative patents stand as a testament to his dedication to advancing technology. His work not only enhances various applications but also inspires future generations of inventors to explore new possibilities within the realm of compositions and materials.