The process involves an acid-leaching treatment
with hydrochloric or sulfuric acid at 150 to 200 degrees C, followed by a
heat treatment process for finishing.
On April 1, 2001, Japan’s National Institute of Advanced Industrial Science
and Technology began operations as the “new” AIST.
The new AIST is a research organization that comprises 15
research institutes previously under the former Agency of Industrial Science
and Technology in the Ministry of International Trade and Industry and the
Weights and Measures Training Institute.
AIST is Japan's largest public research organization with
research facilities and more than 3,200 employees across Japan.
One of the inventors, Kumio Kimura, has published
extensively on the subject of glass microspheres. For example, see:
“Preparation of TiO2-Coated Hollow Glass Microspheres from Titania-Hydrate-Coated
Fine Volcanic Glass” by Dae-Yong Shin and Kunio Kimura, Journal of the
Ceramic Society of Japan, 107:775-779 (No. 9, 1999).
AIST is seeking to license these technologies and assist
with their commercialization. A number of investment options are currently
Consideration will be provided to a range of financial, strategic, and
commercial investment partnerships.