Inventor · disambiguated record
Tsugihiro Doi
Also filed as: DOI TSUGIHIRO
15 granted patents·6 pending applications·111 citations·filing 1986–2012
92Inventor score
Top patents by PatentIndex Score
21 records- 0194US7253988B2Recording/reproducing method of magnetic tapeHITACHI MAXELL·Filed 2006·Granted Aug 7, 2007·18 cites·1 claims
- 0290US7170709B2Recording/reproducing method of magnetic tapeHITACHI MAXELL·Filed 2005·Granted Jan 30, 2007·9 cites·2 claims
- 0386US7593177B2Recording/reproducing method of magnetic tapeHITACHI MAXELL·Filed 2007·Granted Sep 22, 2009·5 cites·2 claims
- 0483US7494728B2Magnetic tape and magnetic tape cartridgeHITACHI MAXELL·Filed 2003·Granted Feb 24, 2009·15 cites·13 claims
- 0579US5079096AMagnetic recording medium comprising a substrate coated with a primer which is a protonic acid doped polyaniline polymerHITACHI MAXELL·Filed 1990·Granted Jan 7, 1992·30 cites·2 claims
- 0678US7291409B2Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassetteHITACHI MAXELL·Filed 2003·Granted Nov 6, 2007·9 cites·15 claims
- 0777US7267896B2Magnetic tape and magnetic tape cartridgeHITACHI MAXELL·Filed 2003·Granted Sep 11, 2007·8 cites·27 claims
- 0876US7309040B2Magnetic tape cartridgeHITACHI MAXELL·Filed 2005·Granted Dec 18, 2007·3 cites·14 claims
- 0965US9231272B2Electrode and method for producing the sameMITSUHASHI HIROYUKI·Filed 2012·Granted Jan 5, 2016·1 cites·5 claims
- 1064US7212372B2Magnetic tape and magnetic tape cartridgeHITACHI MAXELL·Filed 2002·Granted May 1, 2007·5 cites·15 claims
- 1161US7445858B2Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassetteHITACHI MAXELL·Filed 2007·Granted Nov 4, 2008·0 cites·15 claims
- 1261US2008107921A1Magnetic tape and magnetic tape cartridgeHITACHI MAXELL·Filed 2007·Application pending·0 cites
- 1360US7259935B2Magnetic tape including an intermediate layer consisting essentially of a binderHITACHI MAXELL·Filed 2003·Granted Aug 21, 2007·4 cites·10 claims
- 1459US7545597B2Recording/reproducing method of magnetic tapeHITACHI MAXELL·Filed 2006·Granted Jun 9, 2009·0 cites·2 claims
- 1550US7522381B2Recording medium built-in cartridge and cartridge built-in packageHITACHI MAXELL·Filed 2006·Granted Apr 21, 2009·0 cites·19 claims
- 1647US2006003191A1Magnetic tape and magnetic tape cartridgeKUSE SADAMU·Filed 2005·Application pending·0 cites
- 1745US2006209461A1Housing case for recording medium built-in cartridge, and cartridge built-in package using the sameHITACHI MAXELL·Filed 2006·Application pending·0 cites
- 1843US2005196645A1Magnetic tapeHITACHI MAXELL·Filed 2005·Application pending·0 cites
- 1941US2005170214A1Magnetic recording medium and method for producing the sameHITACHI MAXELL·Filed 2004·Application pending·0 cites
- 2040US2005153170A1Magnetic tape and magnetic tape cartridgeHITACHI MAXELL·Filed 2003·Application pending·0 cites
- 2137US4828925AMagnetic discHITACHI MAXELL·Filed 1986·Granted May 9, 1989·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →