Inventor · disambiguated record
Naoki Tatsumi
Also filed as: TATSUMI NAOKI
15 granted patents·2 pending applications·102 citations·filing 1994–2010
91Inventor score
Top patents by PatentIndex Score
17 records- 0192US7781982B2Low-voltage power supply circuit for illumination, illumination device, and low-voltage power supply output method for illuminationNEC LIGHTING LTD·Filed 2006·Granted Aug 24, 2010·34 cites·8 claims
- 0283US8479274B2Personal verification deviceFURUKAWA KENICHI·Filed 2010·Granted Jul 2, 2013·11 cites·15 claims
- 0379US7240872B2Guide roller including a pair of bearing having bearings flanges for retaining a pair of firm disk-shaped annular flangesMITSUMI ELECTRIC CO LTD·Filed 2006·Granted Jul 10, 2007·4 cites·10 claims
- 0470US6592063B2Chucking confirming methodMITSUMI ELECTRIC CO LTD·Filed 2001·Granted Jul 15, 2003·11 cites·1 claims
- 0563US8523391B2Flat light source apparatus with separable unit boardsISHIZUKA MASAHIRO·Filed 2006·Granted Sep 3, 2013·5 cites·20 claims
- 0657US5519288ADrive circuit for powder type electroluminescent device with charge and discharge controlNEC CORP·Filed 1994·Granted May 21, 1996·22 cites·6 claims
- 0753US6634535B2Roller shaftMITSUMI ELECTRIC CO LTD·Filed 2001·Granted Oct 21, 2003·2 cites·3 claims
- 0853US6417984B1Magnetic recording/reproduction apparatusMITSUMI ELECTRIC CO LTD·Filed 2000·Granted Jul 9, 2002·2 cites·8 claims
- 0945US2006238910A1Recording and/or reproducing device having an ejection amount adjustment mechanism capable of changing ejection amount in a software fashionMITSUMI ELECTRIC CO LTD·Filed 2006·Application pending·0 cites
- 1043US6398095B1Magnetic tape recording/reproducing apparatusMITSUMI ELECTRIC CO LTD·Filed 1999·Granted Jun 4, 2002·7 cites·6 claims
- 1140US6922306B2Tape recording and reproduction apparatus capable of stable operation with reduced wearMITSUMI ELECTRIC CO LTD·Filed 2003·Granted Jul 26, 2005·0 cites·5 claims
- 1239US6885516B2Magnetic recording and reproduction apparatus including gear mechanismMITSUMI ELECTRIC CO LTD·Filed 2003·Granted Apr 26, 2005·0 cites·8 claims
- 1339US6481045B1Capstan shaft cleaning deviceMITSUMI ELECTRIC CO LTD·Filed 2000·Granted Nov 19, 2002·0 cites·2 claims
- 1438US2003235004A1Intermittent gear member, intermittent gear mechanism, and magnetic recording and reproduction apparatus including the sameMITSUMI ELECTRIC CO LTD·Filed 2003·Application pending·0 cites
- 1533US6678111B1Magnetic tape recording/reproducing apparatus having a tape guide post mechanism in that a tilt of the tape guide post is restrictedMITSUMI ELECTRIC CO LTD·Filed 1999·Granted Jan 13, 2004·2 cites·6 claims
- 1629US6404583B1Magnetic tape recording/reproducing apparatusMITSUMI ELECTRIC CO LTD·Filed 1999·Granted Jun 11, 2002·0 cites·4 claims
- 1729US6369976B1Magnetic tape recording/reproducing apparatus with a cam to detect operating mode shiftMITSUMI ELECTRIC CO LTD·Filed 1999·Granted Apr 9, 2002·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →