Assignee
MATSUSHITA SEIKO KK
JP·20 granted patents·1,259 citations·filing 1975–2001
Top patents by PatentIndex Score
20 records- 0198US4641053AUltrasonic liquid atomizer with an improved soft start circuitMATSUSHITA SEIKO KK·Filed 1984·Granted Feb 3, 1987·426 cites·18 claims
- 0294US5934783AVentilating fan/light combinationMATSUSHITA SEIKO KK·Filed 1997·Granted Aug 10, 1999·132 cites·25 claims
- 0393US6635106B2Dust collecting apparatus and air-conditioning apparatusMATSUSHITA SEIKO KK·Filed 2001·Granted Oct 21, 2003·90 cites·13 claims
- 0491USD387859SVentilating fanMATSUSHITA SEIKO KK·Filed 1996·Granted Dec 16, 1997·130 cites·1 claims
- 0584US5326317AVentilatorMATSUSHITA SEIKO KK·Filed 1992·Granted Jul 5, 1994·74 cites·6 claims
- 0683US4341151AElectric fanMATSUSHITA SEIKO KK·Filed 1980·Granted Jul 27, 1982·80 cites·8 claims
- 0778US4574872AHeat exchanger apparatusMATSUSHITA SEIKO KK·Filed 1983·Granted Mar 11, 1986·39 cites·7 claims
- 0875US4104890AAir conditioning apparatusMATSUSHITA SEIKO KK·Filed 1977·Granted Aug 8, 1978·44 cites·6 claims
- 0967US4006672AVentilation fan (ventilation system)MATSUSHITA SEIKO KK·Filed 1975·Granted Feb 8, 1977·29 cites·2 claims
- 1063US5888527AGargling cup, antiviral mask, antiviral filter, antifungal, antibacterial, and antiviral filter air cleaner and air-cleaner humidifierMATSUSHITA SEIKO KK·Filed 1997·Granted Mar 30, 1999·67 cites·38 claims
- 1160US6401709B1Range hoodMATSUSHITA SEIKO KK·Filed 2001·Granted Jun 11, 2002·12 cites·24 claims
- 1259US5747053AAntiviral filter air cleaner impregnated with tea extractMATSUSHITA SEIKO KK·Filed 1996·Granted May 5, 1998·57 cites·25 claims
- 1349US4792649AMultiple push-button switch arrangementMATSUSHITA SEIKO KK·Filed 1987·Granted Dec 20, 1988·9 cites·3 claims
- 1444USD352552SCombined ceiling fan and lightMATSUSHITA SEIKO KK·Filed 1993·Granted Nov 15, 1994·7 cites·1 claims
- 1540US5254035AAutomatic operation apparatus for ventilating fanMATSUSHITA SEIKO KK·Filed 1992·Granted Oct 19, 1993·22 cites·3 claims
- 1639US4583056AApparatus having printed circuit pattern for suppressing radio interferenceMATSUSHITA SEIKO KK·Filed 1984·Granted Apr 15, 1986·9 cites·14 claims
- 1737US4318397AAtomizing apparatusMATSUSHITA SEIKO KK·Filed 1979·Granted Mar 9, 1982·15 cites·6 claims
- 1833US5294048AApparatus for controlling ventilation fanMATSUSHITA SEIKO KK·Filed 1992·Granted Mar 15, 1994·6 cites·2 claims
- 1931US4592413AThrough-wall type air conditionerMATSUSHITA SEIKO KK·Filed 1982·Granted Jun 3, 1986·3 cites·6 claims
- 2022US5252030AAutomatic operation apparatus for ventilating fanMATSUSHITA SEIKO KK·Filed 1992·Granted Oct 12, 1993·8 cites·5 claims
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