Tokyo Ohka Kogyo Co., Ltd. engages in the manufacture and sale of electronic functional materials for the material and equipment businesses. It operates in four divisions: Electronic Functional Materials, High Purity Chemicals, Printing Materials, and Process Equipment. The Electronic Functional Materials division offers a range of photoresist, which is used for the microprocesses involved in the manufacture of semiconductors, flat panel displays, semiconductor packaging, printed circuit boards, and other electronic products. This division also supplies materials for forming interlayer insulating film and planarizing insulation film. The High Purity Chemicals division provides various auxiliary chemicals for photoresist, such as developing solution, stripping solution, rinsing solution, thinner, and other chemicals. The Printing Materials division offers photopolymer plates, which are used in letterpress/relief printing for corrugated board, films, beverage cans, and other applications; and PS plates that are used in offset printing/plate making materials. The Process Equipment division provides photoresist coating and developing machines used to manufacture liquid crystal display panels, and various semiconductor manufacturing equipment. It serves customers primarily in North America, Europe, and Asia. The company was founded in 1936 and is headquartered in Kawasaki, Japan.
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