This inventor holds 14 USPTO granted patents. Top assignees: Bridgestone Tire Company Limited, Bridgestone Corporation, Ikeda Bussan Co. Ltd.. Active years: 1977-1990.
Location History:
- Yokohama, JA (1977)
- Sagamihara, JP (1979 - 1990)
Company Filing History:
10 out of 504 
4 out of 5,193 
2 out of 317 Years Active: 1977-1990
Title: Toru Okuyama: Innovator in Polyurethane Foam Technology
Introduction
Toru Okuyama is a prominent inventor based in Sagamihara, Japan. He has made significant contributions to the field of polyurethane foam technology, holding a total of 14 patents. His innovative approaches have led to advancements in the production of antibacterial and flexible polyurethane foams.
Latest Patents
One of Okuyama's latest patents is a process for producing antibacterial flexible polyurethane foam. This invention provides a method for creating foam that contains an antibacterial agent dispersed within it. The process involves a foaming mixture composed of polyols, organic isocyanates, catalysts, and blowing agents. The antibacterial agent is added to the mixture, and the catalyst used is an organic amine, which can be combined with a tin compound. This foam retains its antibacterial properties over time and is safe, as it contains an inorganic antibacterial agent that does not promote resistant bacteria.
Another notable patent is a process for producing polyurethane foam from a raw material that includes polyols, organic isocyanates, catalysts, and blowing agents. This method utilizes a high-molecular weight polyol with a hydroxyl number lower than 100 and a low-molecular weight polyol with a hydroxyl number higher than 200, mixed in a specific ratio. The use of a tertiary amine as the catalyst results in polyurethane forms with excellent buckling performance, making them suitable for various applications such as packaging, shock absorption, and heat insulation.
Career Highlights
Throughout his career, Toru Okuyama has worked with notable companies, including Bridgestone Tire Company Limited and Bridgestone Corporation. His experience in these organizations has contributed to his expertise in the field of materials science and innovation.
Collaborations
Okuyama has collaborated with several professionals in his field, including Takashi Ohashi and Katsuhiko Arai. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Toru Okuyama's contributions to polyurethane foam technology have made a significant impact in various industries. His innovative processes and collaborations continue to advance the field, showcasing the importance of research and development in creating effective materials.