Toshiyuki Nagasawa is a prominent inventor based in Yawata, Japan. He has made significant contributions to the field of ink compositions, holding a total of 7 patents. His work focuses on developing innovative aqueous ink formulations that enhance printing and writing experiences.

Latest Patents

Nagasawa's latest patents include an aqueous pigment ink composition and an aqueous black ink composition for writing boards. The aqueous pigment ink composition features a unique formulation that includes water and carbon black, ensuring a surface oxygen content of at least 0.07 in atom-numeral ratio based on carbon atoms. This composition allows for smooth printing with inkjet nozzles and fine pen tips, while also providing excellent water resistance. The aqueous black ink composition for writing boards addresses common issues such as thickening and clogging, utilizing oxidized carbon black and other agents to maintain writing density and performance.

Career Highlights

Nagasawa is associated with Orient Chemical Industries, Ltd., where he continues to innovate in the field of ink technology. His work has been instrumental in advancing the quality and functionality of ink products used in various applications.

Collaborations

He has collaborated with notable coworkers, including Sohko Itoh and Tetsuji Kihara, contributing to the development of cutting-edge ink compositions.

Conclusion

Toshiyuki Nagasawa's contributions to ink technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the quality of writing and printing materials available today.

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