History
| 1950 | Established in the present address Started to manufacture components for aircrafts, vessels, automobiles as well as jigs, tools  | 
|---|---|
| 1958 | Started to develop and market machine tools(holders) as own brand | 
| 1967 | Started to develop and market pre-setter and NCG type lens grinding machine  | 
| 1970 | Developing KCG type fully automatic lens grinding machine | 
| 1971 | Centralizer won the Patent Office Commissioner Award | 
| 1976 | Started to develop and market high-speed smoothing&polishing machine for small lens | 
| 1978 | Started to develop CNC lens grinding machine. Adopting electronic technology | 
| 1980 | Developing software for managing tools data measured by pre-setter | 
| 1982 | Started to develop and market general tools management system | 
| 1986 | Developing turning tool for lathe | 
| 1989 | Started to develop and market large high-speed smoothing&polishing machine | 
| 1990 | Developing and marketing midium high-speed smoothing&polishing machine | 
| 1991 | Started to manufacture and market paper core chuck, diaphram chuck | 
| 1992 | Developing auto-clamper NW-50 | 
| 1995 | Developing easy-setting lens grinding machine GNH2-80H Developing and marketing totally water-proof universal angular head  | 
| 1996 | Started to develop and market speed-up spindle for MC | 
| 1997 | Started to develop and market small lens grinding machine GV1 Developing high-speed turning tool for combined lathe  | 
| 1998 | Started to develop and market large lens grinding machine GNV4 Developing collet chuck SDN series for small MC Becoming a member of Sugino group  | 
| 1999 | Developing high-performance milling chuck SR series | 
| 2000 | Started to develop and market large lens grinding machine GNV3 Developing angular head for small MC  | 
| 2001 | Started to develop and market midium lens grinding machine Developing inside-cooling turning tool for combined lathe  | 
| 2003 | Started to develop and market pre-setter equipped with CCD camera | 
| 2004 | Started to develop and market aspherical grinding machine(ANH) | 
| 2005 | Started to develop and maeket centering machine(CNV series) | 
| 2006 | Set up a new machining factory | 
| 2009 | Started to develop and market simple type pre-setter EZ-4030 | 
| 2012 | Started to develop and market centrifugal type stir/defoam machine(HIGHMERGER) | 
| 2014 | Start to develop and market automatically presetter(HP) | 
| 2015 | Start to develop, manufacture and market Metal Flat Grinding Machine (MZ) | 
| 2017 | Started to develop and market fully automatic measurement system of automatically presetter(HP) | 
| 2018 | Started to develop and market mix&defoam machine HM-2500W | 
| 2020 | Started to develop and market large-capacity mixing and defoaming machine(HM-20000W) | 
| 2021 | Started to develop and market large multi-tasking machine(MNV4) | 
| 2024 | Started to develop and market large multi-tasking grinding machine(MNV2-Z80) |