Hiroyuki Konishi

Title: **Hiroyuki Konishi: Innovator in Inkjet Ink Technology**

Introduction

Hiroyuki Konishi is an accomplished inventor based in Osaka, Japan, with an impressive portfolio of 21 patents. His work primarily focuses on the development of innovative aqueous inkjet ink compositions, showcasing his expertise in materials science and chemistry.

Latest Patents

Among Hiroyuki Konishi's latest patents are two noteworthy compositions. The first is an **aqueous inkjet ink composition** designed to offer superior performance on nonabsorbent media. This composition incorporates a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant. It ensures high-gap discharge stability and excellent preservation stability while maintaining properties such as antifouling, adhesion, drying, and abrasion resistance.

The second patent introduced by Konishi is a **white inkjet ink composition for textile printing**. This innovative formulation combines a high-fracture-elongation urethane resin with a minimal amount of a crosslinking agent to achieve exemplary washing fastness and texture. This composition features a white pigment, a water-dispersible urethane resin reactive to cationic compounds, a crosslinking agent, a water-soluble organic solvent, and water, ensuring efficient performance in textile applications.

Career Highlights

Hiroyuki Konishi has made significant contributions to ink technology through his roles at prominent companies such as Sumitomo Chemical Company and Sakata Inx Corporation. His insights and inventions have not only advanced ink formulations but also enhanced the overall quality of printing processes across various industries.

Collaborations

Throughout his career, Konishi has collaborated with talented individuals, including coworkers Hiromichi Oshio and Naganori Hino. These partnerships have fostered an environment of innovation, allowing for the exploration and development of new technologies in ink composition and application.

Conclusion

Hiroyuki Konishi's dedication to innovation and his substantial contributions to ink technology reflect his status as a leading inventor in the field. With a solid foundation of patents and collaborations to his name, he continues to inspire advancements in printing technology and materials science. His works demonstrate the importance of creativity and practical application in driving industrial progress.