Denka Co. Ltd. (TYO:4061) has announced that it is revising prices for its Denka Fused Silica Filler. Products set to be affected by this are the FB and FBX lines, with a price increase of 10–15 percent slated for products supplied from Nov. 1 onward. Giving its reasoning for the price increase, Denka noted that the cost of producing fused…