1956 C Established
1958 P Starts production of contact lenses (first in Japan).
1964 P Starts production of coated lenses (first in Japan).
1965 P Starts production of color-coated lenses.
1970 C Establishes plastic division. Tokai Seimitsu Industrial Co., Ltd. is incorporated.
1973 P Develops glass lens multi-coating technology.
1979 P Starts production of CR-39 multi-coated lenses (first in Japan).
1988 P Starts production of AR coated lenses.
1993 P Starts production of cast-molding lenses.
P Starts production of polarized beam splitters.
1995 P Starts production of 1.60 lenses.
1997 P Starts production of 1.67 lenses.
1998 C Incorporates TSL Co., Ltd. as a sales company.
2000 C Obtains ISO9001.
P Starts the sale of 1.74 lenses (first in the world).
2001 P Starts the sale of 1.67 progressive lenses with original design.
2002 P Starts production of super hydrophobic lenses.
2004 P Starts production of ITO film.
2005 A Receives the Nagoya Municipal Industrial Research Institute Director Award.
2006 A Approved as an Aichi Quality Company
2007 P Develops optical resin with antireflection by micromachining (moth eye) (first in the world).
C Obtains ISO14001.
2008 A Selected as "300 of Japan Dynamic Monozukuri SMEs"by METI.
P Starts the sale of 1.74 both-sided aspherical lenses.
2009 P Starts the sale of heat resistant lenses.
P Starts the sale of 1.67 polarized lenses.
2010 P Starts the sale of 1.55 photochromic/polarized lenses.
P Starts the sale of 1.60 polarized lenses.
2011 P Starts the sale of 1.74 polarized lenses (first in the world).
2012 P Starts the sale of functional lenses for blue light cut.
2013 P Starts the sale of functional anti-fog lenses.
2014 P Starts the sale of lenses blocking UV by over 99% at 400nm.