Inventor

OKUHATA KOJI

JP7 patents

⚠️ This page may combine multiple inventors who share the name “OKUHATA KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOYA CORP

5 patents

US7065984B2Jun 27, 2006

Substrate for information recording media and manufacturing method thereof, information recording medium, and starting material glass plate

HOYA CORP16 citations91

US6782717B2Aug 31, 2004

Method for manufacturing glass substrate of information recording medium

HOYA CORP22 citations91

US6749487B2Jun 15, 2004

Method of polishing glass substrate for information recording media, and glass substrate for information recording media

HOYA CORP18 citations83

US7140203B2Nov 28, 2006

Method for manufacturing glass substrate of information recording medium

HOYA CORP16 citations82

US7470476B2Dec 30, 2008

Glass substrate for magnetic recording medium and method for manufacturing the same

HOYA CORP12 citations80

NIPPON SHEET GLASS CO LTD

2 patents

US7604882B2Oct 20, 2009

Substrate for information recording media and manufacturing method thereof, information recording medium, and starting material glass plate

NIPPON SHEET GLASS CO LTD5 citations72

US7736770B2Jun 15, 2010

Substrate for information recording media and manufacturing method thereof, information recording medium, and starting material glass plate

NIPPON SHEET GLASS CO LTD3 citations57