| Nov.1959 | TOKYO HARDFACING, INC. was independently established, by having been span out from the heat-treatment division of YONEKI WORKS JOINT-STOCK COMPANY. |
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| Sep.1960 | The first phase facility construction plan at Tokyo Plant was completed. |
| Jan.1962 | The second phase expansion plan at Tokyo Plant was completed. |
| Dec.1962 | Due to the expanding demands of surface treatment like as Hardfacing, Nitriding, etc. on the machine parts for Petroleum Refinery, Plastic, Iron & Steel, Cement, Shipbuilding, Construction Machinery industries, an integrated manufacturing system including mechanical processing was established. |
| Jul.1964 | A General Sole Agency Contract for Japan of STOODY, the largest maker in U.S.A. of metal surface hardening materials was concluded with TOKYO HARDFACING, INC., where the newest relevant technology being introduced, and set up a large scale nitride furnace as well. |
| Dec.1964 | Increased the company's capital by ¥12.5 million, bringing the total capital to ¥20 million. |
| Nov.1967 | Purchased approximately 7,000 tsubo of land in Yuki City, Ibaraki Prefecture, as the construction site for YUUKI Plant. |
| Dec.1967 | Increased the company's capital by ¥10 million, bringing the total capital to ¥30 million. |
| Feb.1968 | Constructed the welding shop and machine shop as YUUKI Plant's the first phase expansion plan. |
| Jun.1968 | By using TIG auto-welding machine, a Stellite overlaying automation system was established. |
| May.1970 | Increased the company's capital by ¥10 million, bringing the total capital to ¥40 million. |
| Dec.1971 | YUUKI Plant’s the second phase expansion plan was completed. |
| Mar.1978 | Performed stainless steel weld overlay on pressure vessel components in accordance with ASME specifications. |
| Feb.1979 | A General Sole Agency of CRANE CO.,U.S.A. for Japan was contracted. Sales activity of Special Valve (Slide Valve) for Petroleum Refinery usage started. |
| Mar.1979 | Increased the company's capital by ¥10 million, bringing the total capital to ¥50 million. |
| Mar.1980 | The manufacturing system of Seat Rings for Valves with the capacity of 100,000 pcs. per a month was established. |
| Feb.1981 | Constructed the office building and expanded the welding shop as YUUKI Plant's the third phase expansion plan. |
| May.1988 | Opened the rental apartment Casa de Rorumo 107 on the former Tokyo Plant site as part of the company's real estate business, and commenced rental operations. |
| Apr.1992 | A General Sole Agency Agreement to represent Enpro System, Inc.,U.S.A. covering Asian territories was contracted, and sales activities of the Slide Valve, Butterfly Valve & Plug Valve used for FCC Units began. |
| Dec.1992 | For Vertical Crushing Mill usage, overlay welding technology on the Roller Table Liner was established. |
| Apr.1997 | Expanded Yuuki Plant by adding a large automatic roll hardfacing welding system and a new factory building. |
| Nov.1998 | Our manufactured Rolls for the Hot Strip Mill’s Down Coiler were directly supplied to US STEEL Group, Gary Works in the U.S.A. |
| Mar.2003 | Taiwan Business Office was set up. |
| Jun.2003 | Business transactions of the subordinate materials for Super High Voltage Cables began. |
| Dec.2005 | YUUKI Pant's the fourth phase expansion plan was completed. |
| Jan.2007 | The amalgamation of Enpro Systems, Inc. and Tapco International, Inc. having taken place, consequently, TOKYO HARDFACING, INC. contracted as A General Sole Agency Agreement for Japan territory with the TapcoEnpro International, Inc |
| Apr.2007 | A General Sole Agency Agreement to represent DeltaValve, U.S.A. on Unheading Device for Delayed Coker, covering Japan was contracted. |
| Dec.2014 | A General Sole Agency Agreement to represent Bay Plastics Machinery, U.S.A. covering Asian territories was contracted. |
| Apr.2017 | A Welding Robot was Introduced. |
| May.2017 | Fully automatic plasma welding machines were introduced. |
| Aug.2019 | A General Sole Agency Agreement to represent Accurate Thermal Systems, U.S.A. covering Japanese territory was contracted. |
| Jan.2024 | bringing the total capital to ¥80 million. |
| May.2025 | Completed the expansion and reconstruction of Yuuki Plant No.1. |
| Dec.2025 | Installed a demonstration unit of the ClePro screw cleaning machine at Yuuki Plant. |
| Mar.2026 | Introduced a large-scale laser welding system. |
| Apr.2026 | Constructed a new Welfare Building, including a cafeteria and locker rooms, at Yuuki Plant. |
History
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