Location History:
- Utsunomiya, JP (1991)
- Wakayama, JP (1983 - 1992)
- Tochigi, JP (1992)
Company Filing History:
Years Active: 1983-1992
Title: Norihiko Nakashima: Innovator in Shade Enhancing Agents and Thermosensitive Recording Members
Introduction
Norihiko Nakashima is a notable inventor based in Wakayama, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative products that enhance functionality and performance. With a total of 5 patents to his name, Nakashima's work has had a lasting impact on various industries.
Latest Patents
One of Nakashima's latest patents is a shade enhancing agent. This agent comprises an aqueous resin emulsion composition obtained by polymerizing a monomer in the presence of a cationic surfactant or a cationic protective colloid. The composition is designed to have a glass transition point (Tg) ranging between 20°C and 110°C, with a refractive index of 1.50 or less. Additionally, the emulsion composition exhibits a zeta potential between +5 and +80 mV at an ion strength of 10^-3 and a pH value of 7.
Another significant patent is for a thermosensitive recording member. This member consists of a substrate, a foamed dispersion layer on the substrate, and a thermosensitive coloring layer on the foamed dispersion layer. The coloring layer contains an electron-donating dye and an electron-accepting compound, which react to produce color, thereby improving sensitivity.
Career Highlights
Throughout his career, Nakashima has worked with prominent companies such as Kao Corporation and Kao Soap Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.
Collaborations
Some of Nakashima's notable coworkers include Sadashi Ueda and Kazuhisa Yagi. Their collaborative efforts have further advanced the research and development of innovative materials.
Conclusion
Norihiko Nakashima's contributions to the fields of shade enhancing agents and thermosensitive recording members highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving product performance and functionality, making him a significant figure in the world of invention.