Kouichi Doi

Kouichi Doi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of vessel closure technology, holding a total of 3 patents. His innovative designs focus on enhancing the functionality and reliability of vessel closures.

Latest Patents

Doi's latest patents include a heat-resistant liner-provided vessel closure and a composite vessel lid. The heat-resistant liner-provided vessel closure features a liner made from a unique composition that includes a hydrogenated styrene/butadiene block copolymer, liquid paraffin, and a propylene resin. This design ensures minimal compression permanent strain and permanent elongation under high-temperature conditions, maintaining excellent sealing properties even when thermal deformation occurs. The composite vessel lid consists of an outer lid made of plastic and an inner lid of a thin metal sheet. This innovative design incorporates fine projections that create a gas-releasing path, allowing for effective gas release without compromising the engaging force or strength of the outer lid.

Career Highlights

Kouichi Doi has established himself as a key figure in the industry through his work at Japan Crown Cork Co Ltd. His expertise in material science and engineering has led to advancements in vessel closure technology, making significant impacts on product performance and safety.

Collaborations

Doi has collaborated with talented individuals such as Junichi Itsubo and Hiroaki Kikuchi. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge solutions in vessel technology.

Conclusion

Kouichi Doi's contributions to vessel closure technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of material properties and design principles, ensuring that his inventions meet the demands of modern applications.