History
June 1952 Toshinori Hotta established HOTTA Optical Glass processing center at 2-4-5,Nishinakanobu, Shinagawa-ku, Tokyo, JAPAN.
Capital 5,100,000 yen.
January 1959 Established Kawasaki factory at 244, Kariyado, Nakahara-ku, Kawasaki-shi, Kanagawa, JAPAN.
May 1966 Reorganized into HOTTA Optical Co., Ltd.  Integrated polished commodity production and assembly adjustment business together.
March 1973 Established Yamagata factory.
January 1997 Capital 10,000,000 yen.
June 2000 Yukio Hotta became President & CEO.
October 2000 Headquarters moved to Kariｙado, Nakahara-ku.
March 2003 Closed Yamagata factory.
August 2004 Capital 10,500,000 yen.
November 2005 Acquired ISO14001.
January 2012 Yukinobu Hotta became President & CEO. Reshuffled a board members, up to the present date.
March 2012 Renovated office and warehouse in Headquarters.
June 2012 60th Anniversary. New administration launched as "newborn HOTTA Optical".
January 2013 Established HOTTA Optical(Hong Kong)Ltd.
January 2014 Established Tochigi branch.
August 2018 Rebuilt Headquarters.
December 2018 Established new Tochigi branch and factory.