February 28, 2012 NEWS Notice Regarding Changes to the Responsibilities of Directors within the Company (PDF)
January 11, 2012 NEWS SUMITOMO receives approval for Pencil Beam Scanning Irradiation Method in Particle Therapy
August 30, 2011 NEWS Notice Regarding the Separation of the Compact Gear Motor Business through an Incorporation-Type Company Split with a Subsidiary (PDF)
May 09, 2011 NEWS Notice Regarding Partial Change and Continuance of Countermeasure to Large-Scale Acquisitions of the Company's Shares (Takeover Defense Measures) (PDF)
April 21, 2011 NEWS Contract concluded for installation of proton therapy cancer treatment facility at Samsung Medical Center in Korea