Fine Chemicals Business

Fine Chemicals Business

Our Fine Chemicals Business focuses on organic compound technologies. Its main business fields are eyeglass-related materials and pharmaceutical ingredients and intermediates.

Plastic lens-related materials

Our major eyeglass-related products are photochromic materials. These materials are characterized by becoming colored when exposed to strong sunlight and becoming transparent when shielded from exposure. Photochromic dye materials are mainly used for eyeglass lenses, including lenses for regular eyeglasses as well as sunglasses. Lenses made with photochromic dye materials are ideal for both indoor and outdoor use. When exposed to the strong ultraviolet rays of outdoor sunshine, photochromic lenses turn to gray or brown to protect the wearer from glare and ultraviolet light, and return transparent indoors. Tokuyama offers several types of photochromic dye materials which become colored when exposed to the UV rays: Casting (In-mass) type is mixed into the raw materials of plastic lens; Coating type is coated on the lens surface; Sheet type is adhered to the lens surface.

Bulk pharmaceutical ingredients/intermediates

Bulk pharmaceutical ingredients are industrially synthesized compounds used as active pharmaceutical ingredients (API). Intermediates are organic chemical compounds used as intermediate materials in pharmaceuticals, paints, and dyes. In addition to the business of API and intermediates including contract manufacturing, energies are also being channeled into development of bulk pharmaceuticals for generic drugs, which are being promoted by the Japanese government, and raw materials for supplements. In the production of pharmaceutical ingredients, Tokuyama follows Good Manufacturing Practice (GMP) guidelines to manufacture products of the finest quality in accordance with the Pharmaceuticals and Medical Devices Law of Japan. GMP comprises structural facility standards for factories, as well as production management and quality control standards. At our Kashima Factory, we produce high-quality products based on facilities and management practices that are compliant with GMP standards.

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