Shinji Matsunaga

Title: Innovations by Inventor Shinji Matsunaga

Introduction

Shinji Matsunaga is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of packaging technology, holding a total of 4 patents. His innovative designs focus on enhancing the functionality and durability of packaging materials.

Latest Patents

One of Matsunaga's latest patents is a packaging bag designed to prevent a colorant contained in a multilayer film from staining the packaged object. This packaging bag boasts high mechanical strengths, including high impact resistance and high pinhole resistance. The multifold film used in this design is formed by stacking multiple multilayer films, ensuring that the colorant layer does not come into contact with the packaged item. For instance, the colorant can be an inorganic pigment, and the multifold film may consist of two stacked multilayer films formed by flattening a tubular multilayer film.

Another innovative packaging bag developed by Matsunaga addresses the issue of water entry between a handle and the body of the bag. This design maintains proper easy-opening properties while ensuring bag-break strength. The packaging bag features an easy-peel seal, which includes first regions with multiple belt-shaped seals spaced apart and second regions with a single belt-shaped seal. The arrangement of these seals alternates along the length of the bag, allowing for effective connection and functionality.

Career Highlights

Throughout his career, Shinji Matsunaga has worked with reputable companies such as Kyoraku Co., Ltd. and Orihiro Co., Ltd. His experience in these organizations has contributed to his expertise in packaging technology and innovation.

Collaborations

Matsunaga has collaborated with notable individuals in the industry, including Orihiro Tsuruta and Tomohiro Uesugi. These partnerships have likely influenced his inventive processes and led to the development of his patents.

Conclusion

Shinji Matsunaga's contributions to packaging technology demonstrate his innovative spirit and commitment to improving product functionality. His patents reflect a deep understanding of material properties and user needs, making him a significant figure in the field of invention.