Sunao Nakashima

Title: Sunao Nakashima: Innovator in Thermochromic Materials

Introduction

Sunao Nakashima is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of thermochromic materials, which have a wide range of applications in various industries. His innovative work has led to the development of materials that change color in response to temperature variations.

Latest Patents

Nakashima holds a patent for an excellent thermochromic material that exhibits sharp and reversible metachromatism at temperatures ranging from -40°C to 80°C. This material is formed from a combination of an electron-donating, chromatic organic compound, a compound containing a phenolic hydroxyl group, higher aliphatic monovalent alcohols, and higher aliphatic monovalent acid alcohol esters. The thermochromic characteristics of this material can be enhanced when it is occluded in fine microcapsules with a size not exceeding 50 micrometers. This innovation has led to the creation of thermochromic polymers, printing inks, writing instruments, paints, and sheets that exhibit excellent thermochromatic properties.

Career Highlights

Sunao Nakashima is associated with The Pilot Ink Co., Ltd., where he continues to develop and refine his innovative materials. His work has garnered attention for its practical applications and potential to revolutionize the way temperature-sensitive products are designed and utilized.

Collaborations

Nakashima has collaborated with notable coworkers, including Norikazu Nakasuji and Takashi Kataoka, who have contributed to his research and development efforts in thermochromic materials.

Conclusion

Sunao Nakashima's contributions to the field of thermochromic materials highlight his innovative spirit and dedication to advancing technology. His patented work not only showcases his expertise but also opens up new possibilities for various applications in everyday products.