

The Inorganics Sector consists of the Ceramics Division, Carbons Division and
Fine Carbon Department.
Ceramics Division
Ceramics products are used in a wide range of fields, including chemical products,
refractory products, ceramics, paper manufacture, plastics and electronics. We
have been supplying alumina products to domestic and international customers for
over half a century, since 1933, when we embarked on alumina production using
our own technology developed in Japan for the first time. In our Yokoyama Plant
we produce alumina hydroxide, alumina, and high-purity alumina. In our Shiojiri
Plant, meanwhile, we produce abrasive grains, polishing materials and refractory
using fused alumina, silicon carbide and boron nitride making effective use of
our long-accumulated technologies including high-temperature fusing, high-temperature
sintering, and crushing/screening. To meet the increasing needs for ceramics,
we are contributing to the development of each industrial field by upgrading the
quality of our products and the originality of our technology.
Carbons Division
Our Omachi Plant is located in the northern part of Nagano against the backdrop
of grand nature embraced by the Japan Alps. The history of artificial graphite
electrodes (for use in electronic steel-making furnaces) produced here dates back
to 1935. Artificial graphite electrodes are an indispensable material for the
recycling of steel. With the key phrase, "eco-friendly products," we are engaged
in production in strict compliance with ISO 9001 international standards for quality
systems and ISO 14001 international standards for environment management systems.
SDK's artificial graphite electrodes are highly acclaimed by domestic and international
users, and we are expanding our electrode business globally through Showa Denko
Carbon, Inc., our subsidiary in the U.S. (South Carolina).
We are also providing domestic and foreign users with a variety of other products
including fine carbulizing agents for iron casting.
Fine Carbon Department
Backed by our accumulated advanced technology, the Fine Carbon Division seeks
to explore the unlimited potential offered by carbon. In addition to carbon nanofiber
VGCF™ and fuel battery materials already on the market, we are devoting
our energies to producing, developing, and finding new applications for various
high-functionality carbon products, including battery materials, electronics materials,
and materials for alternative energy solutions.
