Inventor · disambiguated record
Kenji Takato
Also filed as: TAKATO KENJI
18 granted patents·359 citations·filing 1985–1998
95Inventor score
Files withFUJITSU LTD18
Top patents by PatentIndex Score
18 records- 0183US4995111ARing trip circuit for subscriber telephoneFUJITSU LTD·Filed 1988·Granted Feb 19, 1991·81 cites·31 claims
- 0276US5311518AISDN interface circuit and system using the sameFUJITSU LTD·Filed 1991·Granted May 10, 1994·68 cites·12 claims
- 0365US4827505ASubscriber line interface circuitFUJITSU LTD·Filed 1986·Granted May 2, 1989·26 cites·22 claims
- 0463US4827503AIntegrated ringing circuit and a ring trip circuit for the sameFUJITSU LTD·Filed 1987·Granted May 2, 1989·21 cites·14 claims
- 0557US4935960ABattery feed circuitFUJITSU LTD·Filed 1989·Granted Jun 19, 1990·16 cites·28 claims
- 0655US5347577ABattery feed circuit for supplying feed current to telephone setFUJITSU LTD·Filed 1992·Granted Sep 13, 1994·26 cites·10 claims
- 0752US5402482ARing trip deciding circuitFUJITSU LTD·Filed 1992·Granted Mar 28, 1995·23 cites·12 claims
- 0852US5402485ATwo-wire termination impedance generation circuit of subscriber circuitFUJITSU LTD·Filed 1994·Granted Mar 28, 1995·24 cites·12 claims
- 0949US6310953B1Subscriber circuitFUJITSU LTD·Filed 1998·Granted Oct 30, 2001·16 cites·7 claims
- 1049US4982422ATerminating circuit in a battery feed circuit of an electronic exchange systemFUJITSU LTD·Filed 1989·Granted Jan 1, 1991·11 cites·14 claims
- 1148US4862309AProtection circuit for battery feed circuitFUJITSU LTD·Filed 1988·Granted Aug 29, 1989·10 cites·19 claims
- 1240US5335271ARing trip detection circuitFUJITSU LTD·Filed 1992·Granted Aug 2, 1994·14 cites·12 claims
- 1339US4912429AOperational amplifierFUJITSU LTD·Filed 1989·Granted Mar 27, 1990·5 cites·13 claims
- 1439US4631366ABattery feed circuit for subscriber lineFUJITSU LTD·Filed 1985·Granted Dec 23, 1986·6 cites·14 claims
- 1538US5113426AGround fault detectorFUJITSU LTD·Filed 1990·Granted May 12, 1992·8 cites·6 claims
- 1630US6005933AMethod for communication with no power feed and exchange for realizing the methodFUJITSU LTD·Filed 1997·Granted Dec 21, 1999·1 cites·7 claims
- 1730US5128992AHybrid circuitFUJITSU LTD·Filed 1990·Granted Jul 7, 1992·1 cites·8 claims
- 1829US4748659ACalling signal transmission apparatusFUJITSU LTD·Filed 1986·Granted May 31, 1988·2 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →