Kazuho Uchida

Title: Kazuho Uchida: Polymer Materials and Electret Innovations.

Introduction

Kazuho Uchida is an inventor associated with Shimamoto, Japan. Her work includes inventions in polymer materials and electret technology. She is credited with 2 patents.

Latest Patents

Uchida’s listed patents address the performance and production of polymer articles, as well as the electrical properties of electret sheets.

- **Polymer article and method for producing polymer article.** This invention describes a polymer article designed to combine mechanical strength, toughness, and stretchability. The article has a crystallinity of at least 50% but less than 90%, and a tensile strain at fracture of at least 60%. Its production method heats polymer material to a temperature at or above 70°C below its melting point, then cools and compresses it to achieve the specified properties.

- **Electret sheet.** This invention describes a charged synthetic-resin sheet made from two incompatible resins that form a phase-separated structure and are cross-linked through a polyfunctional monomer. The arrangement supports charge separation at the interface between the resins. When the sheet deforms under external force, changes in the relative positions of the charges produce an electrical response, contributing to its piezoelectric properties.

Career Highlights

The supplied information associates Uchida with Sekisui Chemical Co., Ltd. and Kansai University. Her listed patent work reflects an interest in polymer processing and functional materials.

Collaborations

Akira Nakasuga and Hironori Tabata are identified as Uchida’s coworkers. The available information does not specify their roles in the listed inventions.

Conclusion

Kazuho Uchida’s patent portfolio highlights approaches to producing durable, stretchable polymer articles and electret sheets with useful piezoelectric properties.