1953 Established as the manufacturer of direct reading liquid level gages in Japan
1962 The first magnetic float level gage was and released for Japan market..
1964 The first reflex level gage was released for Japan market.
1965 Got a patent on bi-color level gage for high pressure applications
1966 Got a patent on KLINPORT-Sight glass in Japan and in USA
1968 Soka factory was established.
1971 KLEARCOAT, Teflon® coat glass was developed and released.
1980 Certified as the approved manufacturer by High-Pressure Gas Application Regulation
1981 Got a patent on position detector for Magnetic Float.
1984 Float Level Switch was released.
1995 Certification of ISO9001was obtained.
1996 LUKING-AR, alkalin resistant glass was released.