Company Filing History:
Years Active: 2016
Title: Innovations by Yoshifumi Koyanagi
Introduction
Yoshifumi Koyanagi is a notable inventor based in Kashiwara, Japan. He has made significant contributions to the field of valve structures, particularly in the context of sealed bags. His innovative approach addresses common issues faced in the industry, showcasing his expertise and creativity.
Latest Patents
Koyanagi holds a patent for a valve structure designed to prevent the fusion of a valve sheet to outer sheets during the heat-sealing process of a sealed bag. This invention involves a unique configuration where the left and right sides of three valve constituting sheets are side-sealed. The opposed valve constituting sheets are brought into close contact to restrict fluid movement. The design includes a partition seal that separates the inside and outside of the bag body, with the valve positioned across this partition. One of the surfaces of the valve constituting sheets is made from a non-weldable film, ensuring that it remains unsealed during the welding process. This innovative design effectively blocks fluid flow into the movement channel, enhancing the functionality of sealed bags.
Career Highlights
Koyanagi is associated with Kashiwara Seitai Co., Ltd., where he applies his inventive skills to develop practical solutions in packaging technology. His work has contributed to advancements in the efficiency and reliability of sealed bag systems.
Conclusion
Yoshifumi Koyanagi's contributions to valve structure innovation demonstrate his commitment to improving packaging technology. His patent reflects a deep understanding of material properties and engineering principles, making a significant impact in the industry.