HISTORY

1929 It is operation start at the main office

1949 Convert sankyo to joint stock corporations

1967 Sennan factory start up
         The enterprise invited to Akita Prefecture

1970 Shuunan optical Inc. is founded.
         Roughing processe is transferred.

1971 The Enlargement of the Sennan factory

1973 Senboku factory opening and operation.
         Assembly process is transferred to the yokote branch factory.

1975 A name is changed from Akita lens factory to Akita office.

1976 Yokote branch factory is abolished.
         Assembly process is transferred to the Yokote branch factory.

1977 Sennan public welfare hall is built.

1984 Omori Seiki Inc. is founded.

1988 The Enlargement of the Shuunan optical Inc..(cement and assembly process)
         The Enlargement of the Omori Seiki Inc..(cement and assembly process)
         The Enlargement of the Senboku factory.(centerring and coating process)

1989 The Enlargement of the Sennan factory.(cleaning , centerring and coating process)

1995.05. The Enlargement of the Omori Seiki Inc..

1995.11. The Enlargement of the Senboku factory.(centerring process)

1996.02. The Enlargement of the Senboku factory.(polish process)

1998.08. Ota factory opening and operation.
                Akita office (Sennan factory, Senboku factory and Ota factory).

2002.05. ISO14001 granted and certified. Registration Number | JQA-EM0855
               Sennan factory, Senboku factory and Ota factory

2002.10. Shuunan optical Inc.and OmoriSeiki Inc.are merged

2003 Omori factory ISO14001 certified
         Expand Omori factory

2005 ISO9001 certified. Registration Number | JQA-QMA12274

2007 Our lens adopted for SOT (Solar-B)

2008 Expand Ota factory

2013 Sennan and Senboku factory move to closed elementary school
         Sennan and Senboku factory changed their name Akita head office