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*1991年起自日本引進[[物理氣相沉積|物理氣相沉積]]（PVD）設備從事[[氮化鈦]](TiN)、氮化鉻(CrN)超硬[[鍍膜|鍍膜]][[表面處理|表面處理]]。<ref name=":">{{cite news |author1=周榮發 |title=冠榮STP技術 強化金屬表層 |url=https://www.chinatimes.com/newspapers/20140414000274-260210?chdtv |work=工商時報 |accessdate=2022-06-10 |date=2014-04-14 |archive-date=2022-06-16 |archive-url=https://web.archive.org/web/20220616132919/https://www.chinatimes.com/newspapers/20140414000274-260210?chdtv }}</ref>

<div style="float:right"><img src="https://lh3.googleusercontent.com/p/AF1QipNa6etf5JV1VWsVd6lC06DMbw8NyxLZ3Yn3EbhM=w1080-h608-p-no-v0" width="320">[https://cosmovac.business.site <span style="color:orange;"><center><small>'''冠榮科技鍍膜顏色'''</small></center></span>]</div>

*1991年中領先全球開發出在[[合金鋼]]材料上退除氮化鈦的退膜技術(退鈦)。<ref name="News" />

*1995年發展出多層膜碳氮化鈦(TiCN)。<ref>{{cite journal |author1=Zhao-yuboZENG |coauthors=Hou-qunXIAOXiao-huaJIE, Yan-meiZHANG |title=Friction and wear behaviors of TiCN coating based on electrical discharge coating |journal=ScienceDirect |date=2015-11- |volume=Volume 25, Issue 11 |pages=3716-3722 |url=https://www.sciencedirect.com/science/article/abs/pii/S1003632615640134 |accessdate=2022-08-08 |archive-date=2022-08-08 |archive-url=https://web.archive.org/web/20220808005323/https://www.sciencedirect.com/science/article/abs/pii/S1003632615640134 |dead-url=no }}</ref>