Company Filing History:
Years Active: 2005-2013
Title: Kenichi Suenaga: Innovator in Polishing Compositions for Hard Disk Substrates
Introduction
Kenichi Suenaga is a notable inventor based in Wakayama, Japan. He has made significant contributions to the field of polishing compositions, particularly for hard disk substrates. With a total of 5 patents to his name, Suenaga's work has been instrumental in enhancing the manufacturing processes of hard disk drives.
Latest Patents
Suenaga's latest patents include innovative polishing compositions designed for hard disk substrates. One of his inventions details a polishing composition that comprises alumina particles, silica particles, and water. The volume median diameter of the secondary particles of the alumina particles is measured to be between 0.1 to 0.8 µm. Additionally, the primary particles of the silica particles have a volume median diameter ranging from 40 to 150 nm, with a standard deviation in number-basis particle size of 11 to 35 nm. This composition effectively reduces the embedding of alumina abrasive grains into the substrate while maintaining high productivity.
Another significant patent focuses on a polishing composition that contains aluminum oxide particles and water. In this invention, the secondary particles of the aluminum oxide have a volume-median particle size of 0.1 to 0.7 µm. Furthermore, the composition limits the amount of aluminum oxide particles with sizes of 1 µm or more to 0.2% by weight or less. This innovation aims to provide a hard disk substrate suitable for high recording density with improved manufacturing efficiency.
Career Highlights
Kenichi Suenaga is currently associated with Kao Corporation, where he continues to develop advanced materials for various applications. His expertise in polishing compositions has positioned him as a key figure in the industry, contributing to the evolution of hard disk technology.
Collaborations
Suenaga has collaborated with notable colleagues, including Yoshiaki Oshima and Toshiya Hagihara. Their combined efforts have led to advancements in the field, further enhancing the quality and efficiency of hard disk substrates.
Conclusion
Kenichi Suenaga's innovative work in polishing compositions has significantly impacted the hard disk manufacturing industry. His patents reflect a commitment to improving productivity and quality in technology.