Inventor · disambiguated record
Yukihisa Matsumura
Also filed as: MATSUMURA YUKIHISA
5 granted patents·30 citations·filing 2001–2012
71Inventor score
Files withSHOWA DENKO KK5
Top patents by PatentIndex Score
5 records- 0188US6821653B2Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2001·Granted Nov 23, 2004·28 cites·16 claims
- 0254US7239483B2Magnetic disk with specified contact ratio [BH 1.0 nm] and circumferential texturing and magnetic disk apparatus equipped with magnetic diskSHOWA DENKO KK·Filed 2004·Granted Jul 3, 2007·2 cites·8 claims
- 0345US7624594B2Magnetic recording medium substrate and manufacturing method therefor, magnetic recording medium, and magnetic recording and reproducing deviceSHOWA DENKO KK·Filed 2005·Granted Dec 1, 2009·0 cites·4 claims
- 0445US7220447B2Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted May 22, 2007·0 cites·4 claims
- 0541US8951652B2Substrate for magnetic recording medium, magnetic recording medium, method of manufacturing magnetic recording medium, and method of inspecting surfaceSHOWA DENKO KK·Filed 2012·Granted Feb 10, 2015·0 cites·1 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →