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Ryuji Sakaguchi

USPTO Granted Patents = 12 (Patent Applications = 6)

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 54(Granted Patents)

Location History:

Oita, JP (1997)
Ichihara, JP (2001 - 2013)
Chiba, JP (2003 - 2015)

Company Filing History:

Showa Denko K.k.

Showa Denko Kabushiki Kaisha

Toshiba Corporation

4. 1 out of 991

Tohoku University

where one patent can have more than one assignee

Years Active: 1997-2015

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9156128 - Burnishing method and burnishing apparatus (2015-10-13),

2. 8968484 - Lifting and drying device and method of manufacturing magnetic recording medium substrate or magnetic recording medium using the same (2015-03-03),

3. 8512100 - Abrasive tape, method for producing abrasive tape, and varnishing process (2013-08-20),

4. 8398870 - Method for manufacturing perpendicular magnetic recording medium (2013-03-19),

5. 8012613 - Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus (2011-09-06),

6. 7220447 - Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus (2007-05-22),

7. 6844046 - Magnetic recording medium, production process thereof, magnetic recording and reproducing apparatus, and sputtering target (2005-01-18),

8. 6821653 - Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus (2004-11-23),

9. 6582758 - Process of producing a magnetic recording medium (2003-06-24),

10. 6468602 - Method of manufacturing a magnetic recording medium (2002-10-22),

11. 6316062 - Magnetic recording medium and method of producing the same (2001-11-13),

12. 5684099 - Propylene block copolymer, process for producing the same, and resin (1997-11-04),

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