Inventor · disambiguated record
Hiroshi Yashiki
Also filed as: YASHIKI HIROSHI
15 granted patents·468 citations·filing 1987–1999
95Inventor score
Top patents by PatentIndex Score
15 records- 0191US4872009AMethod and apparatus for data compression and restorationHITACHI LTD·Filed 1987·Granted Oct 3, 1989·127 cites·9 claims
- 0285US5773124AMagnetic recording medium comprising a protective layer having specified electrical resistivity and densityHITACHI LTD·Filed 1994·Granted Jun 30, 1998·37 cites·29 claims
- 0385US4939614AMagnetic disk medium with circumferentially textured surfaces and varied surface roughness and method of producing the sameHITACHI LTD·Filed 1988·Granted Jul 3, 1990·33 cites·24 claims
- 0484US5504646AMagnetic disk including protective layer having surface with protusions and magnetic disk apparatus including the magnetic diskHITACHI LTD·Filed 1993·Granted Apr 2, 1996·29 cites·23 claims
- 0582US4766788ASuperprecision latheHITACHI LTD·Filed 1987·Granted Aug 30, 1988·30 cites·4 claims
- 0678US5411630AMagnetic disk manufacturing methodHITACHI LTD·Filed 1993·Granted May 2, 1995·29 cites·23 claims
- 0777US6303205B1Magnetic disk including protective layer having surface with protrusions, and substrate thereforHITACHI LTD·Filed 1999·Granted Oct 16, 2001·24 cites·12 claims
- 0872US6062949APolishing amount control system and method for sameSPEEDFAM CO LTD·Filed 1998·Granted May 16, 2000·46 cites·10 claims
- 0969US6041465ACleaning apparatusSPEEDFAM CO LTD·Filed 1998·Granted Mar 28, 2000·37 cites·9 claims
- 1067US6074275APolishing system and method of control of sameSPEEDFAM IPEC CORP·Filed 1998·Granted Jun 13, 2000·32 cites·21 claims
- 1159US5656349AMagnetic disk, method of manufacturing the same and magnetic disk apparatus including the magnetic diskHITACHI LTD·Filed 1991·Granted Aug 12, 1997·12 cites·21 claims
- 1255US5930073AMagnetic disk including protective layer having surface with magnetic disk including protrusions, and magnetic disk apparatus including the magnetic diskHITACHI LTD·Filed 1996·Granted Jul 27, 1999·9 cites·21 claims
- 1348US5690838AMagnetic recording medium and process for producing sameHITACHI LTD·Filed 1995·Granted Nov 25, 1997·8 cites·24 claims
- 1445US6012193AApparatus for washing disc-shaped workpiecesSPEEDFAM CO LTD·Filed 1998·Granted Jan 11, 2000·12 cites·15 claims
- 1533US5879569AMagnetic disk and method of and apparatus for manufacturing magnetic diskHITACHI LTD·Filed 1996·Granted Mar 9, 1999·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →