Inventor · disambiguated record
Ryuji Sakaguchi
Also filed as: SAKAGUCHI RYUJI
12 granted patents·8 pending applications·107 citations·filing 1995–2013
89Inventor score
Top patents by PatentIndex Score
20 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
- 0284US6468602B2Method of manufacturing a magnetic recording mediumSHOWA DENKO KK·Filed 2001·Granted Oct 22, 2002·17 cites·13 claims
- 0384US6316062B1Magnetic recording medium and method of producing the sameSHOWA DENKO KK·Filed 1998·Granted Nov 13, 2001·36 cites·8 claims
- 0471US9156128B2Burnishing method and burnishing apparatusSHOWA DENKO KK·Filed 2013·Granted Oct 13, 2015·2 cites·12 claims
- 0561US5684099APropylene block copolymer, process for producing the same, and resin composition comprising the sameSHOWA DENKO KK·Filed 1995·Granted Nov 4, 1997·17 cites·6 claims
- 0660US8012613B2Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatusSHOWA DENKO KK·Filed 2008·Granted Sep 6, 2011·2 cites·14 claims
- 0755US6582758B2Process of producing a magnetic recording mediumSHOWA DENKO KK·Filed 2001·Granted Jun 24, 2003·5 cites·14 claims
- 0854US8398870B2Method for manufacturing perpendicular magnetic recording mediumSAKAGUCHI RYUJI·Filed 2009·Granted Mar 19, 2013·0 cites·12 claims
- 0952US2010165510A1Vertical magnetic recording medium and magnetic recording reproducing apparatusUNIV TOHOKU·Filed 2008·Application pending·0 cites
- 1051US2010003901A1Burnishing tape and method of manufacturing the same, and method of burnishing magnetic diskSHOWA DENKO KK·Filed 2009·Application pending·0 cites
- 1149US2009147401A1Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproducing apparatusTAKAHASHI MIGAKU·Filed 2007·Application pending·0 cites
- 1247US2010247961A1Perpendicular magnetic recording medium, method of manufacturing the medium and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2008·Application pending·0 cites
- 1347US2010079911A1Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus using the magnetic recording mediumSHOWA DENKO KK·Filed 2008·Application pending·0 cites
- 1445US8512100B2Abrasive tape, method for producing abrasive tape, and varnishing processSAKAGUCHI RYUJI·Filed 2009·Granted Aug 20, 2013·0 cites·6 claims
- 1545US7220447B2Magnetic 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
- 1644US2010136370A1Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic recording/reproducing apparatusSAKAGUCHI RYUJI·Filed 2008·Application pending·0 cites
- 1740US6844046B2Magnetic recording medium, production process thereof, magnetic recording and reproducing apparatus, and sputtering targetSHOWA DENKO KK·Filed 2003·Granted Jan 18, 2005·0 cites·10 claims
- 1839US2007056135A1Electric vacuum cleanerSASAKI AYUMI·Filed 2004·Application pending·0 cites
- 1936US8968484B2Lifting and drying device and method of manufacturing magnetic recording medium substrate or magnetic recording medium using the sameSAKAGUCHI RYUJI·Filed 2011·Granted Mar 3, 2015·0 cites·8 claims
- 2031US2012118322A1Flow-through washing method and flow-through washing apparatusSAKAGUCHI RYUJI·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ryuji Sakaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →