The following table provides an overview of the latest patents of Sumitomo Electric Hardmetal Corp. that has been opposed by its competitors. It provides an insight into the competitive landscape of the industry and highlights the patents that are subject to oppositions.

Patent NumberGrant DateTitleTotal Oppositions
EP1772216Oct 26, 2022Surface Coating Cutting Tool With Coating Film Having Intensity Distribution Of Compression Stress1
EP1782902Jan 3, 2018Replaceable-Blade Cutting Insert And Corner Milling Cutter With Replaceable Cutting Insert1
EP1911538Aug 30, 2017Edge Replacing Cutting Tip And Method For Producing The Same1