Ohara Inc. is a Japanese global glass manufacturing company. It is headquartered in Sagamihara with subsidiaries in a number of countries, including Japan, the United States, Germany, Hong Kong, Malaysia, Taiwan, and China, with Ohara Corporation being the U.S. subsidiary of the Ohara Group. Ohara manufactures glasses since 1935, the year of its founding. Their web site lists areas of specialization, including: Optical Glass Polished Substates Fused Silica and Quartz IR Materials and Optical Crystals Low Expansion Glass Glass Ceramics Measurement Services Wikipedia