Chiharu Okawara

Title: Chiharu Okawara - Innovator in Gas Barrier Technologies

Introduction

Chiharu Okawara, a notable inventor based in Tokyo, Japan, has made significant contributions to the field of materials science through his innovative work on gas barrier technologies. With a remarkable portfolio of 11 patents, Okawara's inventions focus on enhancing materials used in various applications, particularly in ensuring superior gas barrier properties.

Latest Patents

Among Okawara's latest patents is the gas barrier multilayer film, which features a unique construction capable of delivering excellent gas barrier properties, water resistance, and adhesiveness. This invention includes a plastic substrate, a silicon oxide layer formed on at least one surface of the substrate, and a coat layer made from a polyurethane-based resin and a silane coupling agent. The resulting reaction product boasts a number-average molecular weight ranging from 100,000 to 1,000,000.

Another prominent patent is the gas-barrier laminate, which is designed with an inorganic thin layer on a substrate comprising a polyethylene naphthalate layer. This laminate not only exhibits high water vapor and oxygen barrier properties but also showcases exceptional adhesion between the substrate and the inorganic thin layer. The configuration includes a substrate with a polyethylene naphthalate layer, a layer made from an acryl polyol and an isocyanate compound, topped with an inorganic thin layer arranged in that specific order.

Career Highlights

Chiharu Okawara has had a distinguished career, collaborating with reputed companies such as Mitsubishi Plastics, Inc. and Lintec Corporation. His work has significantly influenced advancements in gas barrier technologies, paving the way for enhanced materials in various industrial applications.

Collaborations

Throughout his career, Okawara has collaborated with esteemed colleagues like Shigenobu Yoshida and Tooru Hachisuka. These collaborations have not only enriched his work but also contributed to the collective efforts in innovation in the field of material engineering.

Conclusion

Chiharu Okawara stands out as a leading inventor within the technological landscape of gas barrier materials. His patents reflect a commitment to innovation and excellence, demonstrating his ability to tackle challenges in material science with creative solutions. Okawara’s contributions continue to influence various industries, underscoring the importance of advancing materials for enhanced performance.