Inventor · disambiguated record
Nagatugu Koiso
Also filed as: KOISO NAGATUGU
11 granted patents·176 citations·filing 1979–2003
91Inventor score
Top patents by PatentIndex Score
11 records- 0190US6221508B1Magnetic recording mediaHITACHI LTD·Filed 1998·Granted Apr 24, 2001·47 cites·8 claims
- 0282US5290629AMagnetic film having a magnetic phase with crystallites of 200 A or less and an oxide phase present at the grain boundariesHITACHI LTD·Filed 1991·Granted Mar 1, 1994·32 cites·18 claims
- 0377US6574060B2Magnetic storage apparatusHITACHI LTD·Filed 2001·Granted Jun 3, 2003·9 cites·6 claims
- 0476US4288283AMethod of forming a microscopic patternHITACHI LTD·Filed 1980·Granted Sep 8, 1981·27 cites·9 claims
- 0566US4460412AMethod of making magnetic bubble memory device by implanting hydrogen ions and annealingHITACHI LTD·Filed 1982·Granted Jul 17, 1984·14 cites·18 claims
- 0665US7050253B2Magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 23, 2006·4 cites·24 claims
- 0749US6033792ASoft magnetic thin film, and magnetic head and magnetic recording device using the sameHITACHI LTD·Filed 1998·Granted Mar 7, 2000·8 cites·13 claims
- 0847US5873955ASoft magnetic thin film, and magnetic head and magnetic recording device using the sameHITACHI LTD·Filed 1996·Granted Feb 23, 1999·11 cites·11 claims
- 0946US5962153ASoft magnetic thin film, and magnetic head and magnetic recording apparatus using the filmHITACHI LTD·Filed 1997·Granted Oct 5, 1999·9 cites·23 claims
- 1043US5858548ASoft magnetic thin film, and magnetic head and magnetic recording device using the sameHITACHI LTD·Filed 1995·Granted Jan 12, 1999·12 cites·16 claims
- 1134US4262054AMagnetic bubble memory deviceHITACHI LTD·Filed 1979·Granted Apr 14, 1981·3 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →