This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignees: Kabushiki Kaisha Pilot Corporation, The Pilot Ink Co., Ltd.. Active years: 2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 181 
1 out of 175 Years Active: 2022
Title: Tomoyuki Yamamura: Innovator in Thermochromic Ink Technology
Introduction
Tomoyuki Yamamura is a notable inventor based in Aichi-ken, Japan. He has made significant contributions to the field of ink technology, particularly with his innovative work on thermochromic aqueous ink compositions. His inventions have the potential to enhance the functionality and versatility of writing instruments.
Latest Patents
Yamamura holds a patent for a "Reversibly thermochromic aqueous ink composition and writing instrument using the same." This invention aims to provide a reversibly thermochromic aqueous ink composition that excels in the dispersion stability of a reversibly thermochromic microcapsule pigment. The patent details a composition that includes a microcapsule pigment encapsulating a thermochromic composition, which consists of an electron-donating color-developing organic compound, an electron-accepting compound, and a reaction medium. This innovative ink composition is designed to determine the occurrence temperature of a coloring reaction, making it a valuable addition to the writing instrument market.
Career Highlights
Throughout his career, Tomoyuki Yamamura has worked with prominent companies in the ink industry, including Kabushiki Kaisha Pilot Corporation and The Pilot Ink Co., Ltd. His experience in these organizations has allowed him to refine his expertise in ink formulations and contribute to advancements in writing technology.
Collaborations
Yamamura has collaborated with notable colleagues such as Katsuyuki Fujita and Yasuaki Kambe. These partnerships have likely fostered a creative environment that encourages innovation and the development of new technologies in the field of inks.
Conclusion
Tomoyuki Yamamura's contributions to thermochromic ink technology exemplify the impact of innovative thinking in the writing instrument industry. His patent and career achievements highlight the importance of research and development in creating advanced materials that enhance user experience.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile