Sumitomo Electric Hardmetal Corp. was originally a division of Sumitomo Electric Industries, Ltd. In 2003, it became an independent business entity after separating from Sumitomo Electric Industries, Ltd. Currently, Sumitomo Electric Hardmetal Corp. handles the development and manufacturing of products while Sumitomo Electric Industries, Ltd. Hardmetal Division handles all domestic and international planning and sales. The company's milestones below include activities done while being a division of Sumitomo Electric Industries, Ltd., up to its independence as a new company:
Sumitomo Electric Wire & Cable Works (currently Sumitomo Electric Industries, Ltd.) started study/research of cemented carbide
Succeeded in producing cemented carbide wire and cable drawing dies for private use
Started production of cemented carbide cutting tools as "IGETALLOY"
Opened the Itami IGETALLOY Works
Established KYUSHU SEIMITSU KOGYO CO., LTD
(currently KYUSHU SUMIDEN SEIMITSU LTD.)
Established Hokkaido Sumiden Precision Co., LTD
(Mass production facility for throw-away inserts)
Started production and marketing of CBN sintered tool "SumiBoron"
Started production and marketing of diamond sintered tool "SumiDia"
Started recycling business of tungsten from disposed cemented carbide using a zinc treatment method
Established TOKAI PRECISION CO., LTD (currently TOKAI SUMIDEN PRECISION Co., Ltd.)
Commercialized synthetic monocrystal diamond "Sumicrystal"
Started production and marketing of laser-cut optical parts
Sumitomo Electric Hardmetal Corp. started operation
We will continue to push forward with the development of high-quality, innovative technologies required in the global market.