Company Filing History:
2 out of 504 
1 out of 832,761 Years Active: 2002
Title: Hiroyuki Kono: Innovator in Silica Dispersion and Polishing Technology
Introduction
Hiroyuki Kono is a notable inventor based in Shiki, Japan. He has made significant contributions to the field of materials science, particularly in the development of silica dispersions and polishing slurries. With a total of 3 patents to his name, Kono's work has advanced the technology used in semiconductor manufacturing and other applications.
Latest Patents
Kono's latest patents include a cationic polymer-modified silica dispersion and a polishing slurry with a high polishing rate. The cationic polymer-modified silica dispersion comprises silica fine particles with an average particle diameter of less than 200 nm, combined with a cationic polymer. This innovative dispersion prevents the coagulation of silica particles and is characterized by a light scattering index (n value) of 2.0 or more when diluted to a solid concentration of 1.5% by weight. The production process involves oppositely-colliding a mixed solution of silica and cationic polymer in a polar solvent at a treating pressure of 300 kgf/cm or more.
The polishing slurry developed by Kono consists of water, fumed silica with an average primary particle size of 9 to 60 nm, and spherical silica with an average primary particle size of 40 to 600 nm. The total silica content in the slurry ranges from 1 to 40% by weight, making it effective for polishing semiconductor devices.
Career Highlights
Throughout his career, Hiroyuki Kono has worked with prominent companies, including Tokuyama Corporation. His expertise in silica technology has positioned him as a key figure in the industry, contributing to advancements that enhance manufacturing processes.
Collaborations
Kono has collaborated with notable professionals in his field, including Hiroshi Kato and Naoto Mochizuki. These partnerships have fostered innovation and the sharing of knowledge, furthering the development of effective materials and processes.
Conclusion
Hiroyuki Kono's contributions to silica dispersion and polishing technology have made a significant impact on the industry. His innovative patents and collaborations highlight his role as a leading inventor in materials science.