Assignee
KABUSHIKI KAISYA OHARA
JP·11 granted patents·603 citations·filing 1994–1997
Top patents by PatentIndex Score
11 records- 0195US5391522AGlass-ceramic for magnetic disks and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1994·Granted Feb 21, 1995·102 cites·14 claims
- 0291US5591682ALow expansion transparent glass-ceramicKABUSHIKI KAISYA OHARA·Filed 1995·Granted Jan 7, 1997·81 cites·4 claims
- 0389US5567217AMethod for manufacturing a crystalized glass magnetic disk substrateKABUSHIKI KAISYA OHARA·Filed 1995·Granted Oct 22, 1996·61 cites·2 claims
- 0488US5626935AMagnetic disk substrate and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1994·Granted May 6, 1997·60 cites·22 claims
- 0587US5580363AMethod for detecting a defect in a glass-ceramic for magnetic disksKABUSHIKI KAISYA OHARA·Filed 1994·Granted Dec 3, 1996·61 cites·4 claims
- 0687US5532194ACordierite glass-ceramic and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1995·Granted Jul 2, 1996·72 cites·7 claims
- 0780US5561089AGlass-ceramic for information recording diskKABUSHIKI KAISYA OHARA·Filed 1995·Granted Oct 1, 1996·54 cites·3 claims
- 0877US5868953AMethod for manufacturing a magnetic disk substrateKABUSHIKI KAISYA OHARA·Filed 1995·Granted Feb 9, 1999·40 cites·8 claims
- 0974US5588979AApparatus for continuously forming and processing a glass-ceramicKABUSHIKI KAISYA OHARA·Filed 1995·Granted Dec 31, 1996·27 cites·6 claims
- 1068US5607886AOptical glass for mold pressing having softening capability at low temperatureKABUSHIKI KAISYA OHARA·Filed 1995·Granted Mar 4, 1997·32 cites·2 claims
- 1145US5942793ALow alpha-ray level glass and method for manufacturing the sameKABUSHIKI KAISYA OHARA·Filed 1997·Granted Aug 24, 1999·13 cites·6 claims
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