Inventor · disambiguated record
Masayoshi Sakai
Also filed as: SAKAI MASAYOSHI
31 granted patents·1 pending application·425 citations·filing 1992–2006
97Inventor score
Top patents by PatentIndex Score
32 records- 0189US7443342B2Reception time determining apparatus and distance measuring apparatus using the sameNIPPON SIGNAL CO LTD·Filed 2006·Granted Oct 28, 2008·59 cites·10 claims
- 0282US7197932B2Failure detecting systemNIPPON SIGNAL CO LTD·Filed 2000·Granted Apr 3, 2007·24 cites·19 claims
- 0379US6047634AFail-safe automatic sliding operation control apparatus for pressNIPPON SIGNAL CO LTD·Filed 1997·Granted Apr 11, 2000·28 cites·28 claims
- 0474US5798703AMat sensorNIPPON SIGNAL CO LTD·Filed 1996·Granted Aug 25, 1998·32 cites·39 claims
- 0568US6434025B2Power supply unitNIPPON SIGNAL CO LTD·Filed 1999·Granted Aug 13, 2002·37 cites·44 claims
- 0665US5508697AAirplane detection systemNIPPON SIGNAL CO LTD·Filed 1992·Granted Apr 16, 1996·17 cites·8 claims
- 0762US5574320ALoad drive circuitNIPPON SIGNAL CO LTD·Filed 1993·Granted Nov 12, 1996·16 cites·10 claims
- 0861US6292524B1Counting apparatus and rotation stopped detection apparatus which uses a counting apparatusNIPPON SIGNAL CO LTD·Filed 2000·Granted Sep 18, 2001·7 cites·5 claims
- 0961US6034449ALoad drive circuitNIPPON SIGNAL CO LTD·Filed 1997·Granted Mar 7, 2000·14 cites·7 claims
- 1061US5619110ASafety ensuring apparatusKAO CORP·Filed 1993·Granted Apr 8, 1997·22 cites·12 claims
- 1158US6148055ACounter and a revolution stop detection apparatus using the counterNIPPON SIGNAL CO LTD·Filed 1996·Granted Nov 14, 2000·16 cites·10 claims
- 1253US5668706ALoad driving circuitNIPPON SIGNAL CO LTD·Filed 1996·Granted Sep 16, 1997·11 cites·9 claims
- 1352US5568131AMotor rotation judgement circuit and apparatus using such circuit for verifying that a motor is stoppedNIPPON SIGNAL CO LTD·Filed 1993·Granted Oct 22, 1996·14 cites·15 claims
- 1452US5519598ALoad driving circuitNIPPON SIGNAL CO LTD·Filed 1993·Granted May 21, 1996·10 cites·3 claims
- 1550US7245224B2Methods and systems for diagnosing projection device failureDELL PRODUCTS LP·Filed 2004·Granted Jul 17, 2007·3 cites·15 claims
- 1648US6031790AInformation generator using elastic waveNIPPON SIGNAL CO LTD·Filed 1997·Granted Feb 29, 2000·12 cites·15 claims
- 1747US5717302AMotor stopped verification apparatusNIPPON SIGNAL CO LTD·Filed 1994·Granted Feb 10, 1998·12 cites·16 claims
- 1846US6292432B1Information generating apparatus using elastic wavesNIPPON SIGNAL CO LTD·Filed 1999·Granted Sep 18, 2001·11 cites·15 claims
- 1945US6334077B1Operation apparatus for pressNIPPON SIGNAL CO LTD·Filed 1998·Granted Dec 25, 2001·6 cites·20 claims
- 2044US6459656B1Information generating apparatus using elastic wavesNIPPON SIGNAL CO LTD·Filed 2001·Granted Oct 1, 2002·5 cites·12 claims
- 2144US5734269ABridge circuit fault monitoring apparatus using an output signal level from a bridge circuit and a power source current level to determine faultsNIPPON SIGNAL CO LTD·Filed 1994·Granted Mar 31, 1998·9 cites·7 claims
- 2244US5285721ASlide operation control device for a pressNIPPON SIGNAL CO LTD·Filed 1993·Granted Feb 15, 1994·9 cites·7 claims
- 2341US5818681AElectromagnetic relay drive circuitNIPPON SIGNAL CO LTD·Filed 1996·Granted Oct 6, 1998·7 cites·9 claims
- 2441US5675317AResidual pressure sensor and residual pressure sensor monitoring apparatusNAGANO KEIKI SEISAKUSHO KK·Filed 1994·Granted Oct 7, 1997·9 cites·23 claims
- 2540US5903517AMoving body control apparatusNIPPON SIGNAL CO LTD·Filed 1997·Granted May 11, 1999·8 cites·12 claims
- 2639US5638043AWarning apparatusNIPPON SIGNAL CO LTD·Filed 1994·Granted Jun 10, 1997·8 cites·7 claims
- 2739US5568059ACurrent sensor and motor rotation sensor using such current sensorNIPPON SIGNAL CO LTD·Filed 1993·Granted Oct 22, 1996·6 cites·5 claims
- 2837US2001012563A1Silver-plated laminated body and method of manufacturing sameFiled 2000·Application pending·0 cites
- 2935US6392451B1Threshold value operation circuit, and, and gate circuit, self hold circuit, start signal generation circuit using threshold value operation circuitNIPPON SIGNAL CO LTD·Filed 1999·Granted May 21, 2002·3 cites·27 claims
- 3031US5825144ADrive control apparatus for a rotating machineKAO CORP·Filed 1993·Granted Oct 20, 1998·2 cites·13 claims
- 3131US5666081AOn-delay circuitNIPPON SIGNAL CO LTD·Filed 1993·Granted Sep 9, 1997·1 cites·5 claims
- 3231US5578987AMonitoring apparatus for an alarm deviceNIPPON SIGNAL CO LTD·Filed 1994·Granted Nov 26, 1996·7 cites·8 claims
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