Company Filing History:
Years Active: 1999-2000
Title: Sei-ichi Yokoi: Innovator in Water-based Ink Compositions
Introduction
Sei-ichi Yokoi is a notable inventor based in Redwood City, CA (US). He has made significant contributions to the field of ink compositions, holding a total of 4 patents. His work focuses on developing innovative water-based, water-fast ink compositions that enhance the quality and usability of inks.
Latest Patents
Yokoi's latest patents include formulations for water-based, water-fast ink compositions that contain a binder matrix. These compositions consist of an aqueous liquid vehicle, a colorant such as a pigment, dye, or stain, and a binder material that can ionically or physically entrap the selected colorant. The binder material is designed with two ionically associated components that form a matrix, utilizing either a combination of a monomeric polyacid and a monomeric polybase or a combination of a basic polymer and an organic acid. These innovations aim to improve the performance and stability of water-based inks.
Career Highlights
Sei-ichi Yokoi has been associated with Sri International, where he has contributed to various research and development projects. His expertise in ink formulations has positioned him as a key player in the industry, driving advancements in water-based ink technology.
Collaborations
Yokoi has collaborated with notable colleagues, including Asutosh Nigam and Subhash C Narang. Their combined efforts have led to significant advancements in the field of ink compositions.
Conclusion
Sei-ichi Yokoi's innovative work in water-based ink compositions showcases his dedication to enhancing ink technology. His contributions have the potential to impact various applications in the printing and writing industries.