The history of IMM
| 1973 | Initiation of research and development efforts for VIM melting and refining of superalloys. This program was conducted in a 100Kg furnace. |
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| 1979 | Commercial production of superalloy master metal ingot began in a 1.5 Mtric Ton VIM furnace located at IHI's Tokyo Works. |
| 1983 | IMM was established as IHI's superalloy subsidiary on June 10th. |
| 1986 | IMM became a licensee for production of the Mar-M series of superalloys under the patent rights of Martin Marietta Corporation, U.S.A. |
| 1993 | IMM's facilities were relocated to Aion, Hyogo-Ken, Japan on August 1st. We designed, built and qualified a new VIM furnace with interchangeable 1.5, 3, and 5 Metric Ton crucibles. |
| 1996 | Implementation of multiple filtering program for superalloy manufacturing. |
| 1997 | Under a technical agreement with Special Metals Corporation, U.S.A., technology was transferred to IMM to improve the quality of Rene 142 master metal ingot. |
| 2000 | General Electric qualification was recieved for the production of Nickel & Cobalt Base Premium Materials(P1TF256,S297) |
| 2002 | Rolls-Royce Ltd qualification was received for production of Nickel Materials. |
| 2003 | Pratt & Whitney Aircraft qualification was received for production of Nickel Materials. JIQ9100 accreditation was received. |
| 2007 | ISO/IEC17025 accreditation was received. |
| 2008 | One more new VIM furnace 6 Metric Ton Crucible was qualified. Nedcap accreditation was received. |
| 2013 | Received Rolls Royce manufacturing certification Received Rolls Royce MSRR9920 certification (Chemical composition analysis laboratory) |
| 2015 | IMM installed Glow Discharge Mass Spectrometer (Astrum) |
| 2020 | Received P&W commercial laboratory certification (chemical composition analysis laboratory) |
| 2021 | Introduction of astrum ES, a glow discharge mass spectrometer for trace elements |
