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1935-1955

  • 1935 OHARA Optical Glass Mfg. Co. Ltd. was established in Kamata, Tokyo as Jinpachi OHARA's private Enterprise.
  • 1936 Optical Glass Melting started
  • 1944 Reorganized as a Joint-Stock Company. Sagamihara factory was built.
  • 1954 Platinum Pot Melting started 

1956-1976

  • 1958 Production of Lanthanum Glass started
  • 1959 Appointed Chicago Aerial Industries(CAI) as an export agency
  • 1961 Production of Strip Glass by Continuous Melting Method started
  • 1965 Continuous Melting and Direct Pressing Production Method started
  • 1967 CAI was mergedinto bourns Inc. Bourns optical Glass was appointed as a distributor in U.S.A and Europe
  • 1969 OHARA Glass reached the moon (Apollo 11)
  • 1975 Production of Low Refractive Index - Low Dispersion Glass "FK01" Started
  • 1976 Production of Glass Beads started

1977-1990

  • 1979 Production of Penta Prism by Direct Pressing started
  • 1981 Ohara Corporation (USA) was established
  • 1982 OHARA Glass flew into the universe with Space-Shuttle "Columbia"
  • 1983 Volume Production of High Homogeneity Glasses started (±0.5∼±1.0X10-6)
  • 1985 New Company Name "OHARA INC." introduced
  • 1986 TAIWAN-OHARA OPTICAL CO., LTD. (Taiwan) was established
  • 1987 OHARA Precision Corporation (Japan) was established
  • 1988 Production of  "Glass -Ceramics" started
  • 1989 Introduction of 18" Interferometer (Zygo Mark IV)
  • 1990 OHARA GmbH (Germany) was established

1991-2008

  • 1991 OHARA OPTICAL(M)SDN.BHD. (Malaysia) was established
  • 1992 T.Q.C.(Total Quality control) was introduced
  • 1996 OHARA DISK(M)SDN.BHD. (Malaysia) was established
  • 1998 All OHARA Products got ISO9001 Qualified
  • 2000 Measurement service for refractive indices at Vacuum UV region started
  • 2001 UNIQUE OHARA OPTICAL CO., LTD. (China) was established
  • 2002 OHARA OPTICAL (HONG KONG) LTD.(China) was established
  • 2005 Listing on First Section of Tokyo Stock Exchange
  • 2006 Became a member of "Nippon Keidanren (Japan Business Federation)"
  • 2007 OHARA Glass mounted the Lunar Orbit Explorer "KAGUYA (SELENE)"
  • 2008 Ohara Quartz Co.,Ltd. was established

2009-today

  • 2011 NHG-OHARA OPTICS(XIANGYANG)CO.,LTD.(China) was established
  • 2012 Taiwan Ohara Optical Material Co., Ltd.(Taiwan) was established
  • 2015 NANOCERAM and Non-Browning Optical Glass has released.