Inventor · disambiguated record
Seiichi Watarai
Also filed as: WATARAI SEIICHI
27 granted patents·372 citations·filing 1995–2009
96Inventor score
Top patents by PatentIndex Score
27 records- 0194US6771114B2Charge pump current compensating circuitNEC ELECTRONICS CORP·Filed 2002·Granted Aug 3, 2004·61 cites·20 claims
- 0287US6492851B2Digital phase control circuitNEC CORP·Filed 2001·Granted Dec 10, 2002·34 cites·5 claims
- 0385US7573299B2Semiconductor integrated circuit including output circuitNEC ELECTRONICS CORP·Filed 2007·Granted Aug 11, 2009·16 cites·2 claims
- 0483US6900679B2Digital phase control circuitNEC ELECTRONICS CORP·Filed 2002·Granted May 31, 2005·26 cites·14 claims
- 0579US6316964B1Method for generating differential tri-states and differential tri-state circuitNEC CORP·Filed 1999·Granted Nov 13, 2001·35 cites·23 claims
- 0677US7245155B2Data output circuit with improved overvoltage/surge protectionNEC ELECTRONICS CORP·Filed 2005·Granted Jul 17, 2007·9 cites·9 claims
- 0775US5644252ADriver for interfacing integrated circuits to transmission linesNEC CORP·Filed 1996·Granted Jul 1, 1997·29 cites·9 claims
- 0872US6294932B1Input circuit, output circuit, input-output circuit and method of processing input signalsNEC CORP·Filed 1999·Granted Sep 25, 2001·74 cites·54 claims
- 0959US6329866B1Transient current producing method, transient current producing circuit, related semiconductor integrated circuit and logical circuitNEC CORP·Filed 2000·Granted Dec 11, 2001·8 cites·29 claims
- 1049US6078206ASmall amplitude signal output circuitNEC CORP·Filed 1998·Granted Jun 20, 2000·10 cites·4 claims
- 1149US5864245AOutput circuit with overvoltage protectionNEC CORP·Filed 1996·Granted Jan 26, 1999·10 cites·10 claims
- 1248US6642748B2Input circuitNEC ELECTRONICS CORP·Filed 2002·Granted Nov 4, 2003·3 cites·19 claims
- 1347US6967505B2Input circuitNEC ELECTRONICS CORP·Filed 2003·Granted Nov 22, 2005·3 cites·7 claims
- 1445US5563542AOutput circuit for gunning transceiver logicNEC CORP·Filed 1995·Granted Oct 8, 1996·8 cites·6 claims
- 1543US7924074B2Delay control circuit and delay control methodRENESAS ELECTRONICS CORP·Filed 2008·Granted Apr 12, 2011·0 cites·20 claims
- 1643US6118327AEmitter follower circuit having no temperature dependencyNEC CORP·Filed 1998·Granted Sep 12, 2000·7 cites·20 claims
- 1742US7164743B2Delay locked loopNEC ELECTRONICS CORP·Filed 2002·Granted Jan 16, 2007·3 cites·16 claims
- 1840US7741875B2Low amplitude differential output circuit and serial transmission interface using the sameNEC ELECTRONICS CORP·Filed 2006·Granted Jun 22, 2010·0 cites·19 claims
- 1939US6366126B1Input circuit, output circuit, and input/output circuit and signal transmission system using the same input/output circuitNEC CORP·Filed 1999·Granted Apr 2, 2002·11 cites·4 claims
- 2039US6052018ASmall amplitude signal output circuitNEC CORP·Filed 1998·Granted Apr 18, 2000·5 cites·14 claims
- 2138US6037802ATristate buffer having a bipolar transistorNEC CORP·Filed 1997·Granted Mar 14, 2000·5 cites·4 claims
- 2238US5910744AVariable delaying circuit having a nearly linear delay characteristicNEC CORP·Filed 1997·Granted Jun 8, 1999·5 cites·13 claims
- 2338US5831465AVariable delay circuitNEC CORP·Filed 1997·Granted Nov 3, 1998·5 cites·6 claims
- 2437US6121792AInput circuit having current controlNEC CORP·Filed 1998·Granted Sep 19, 2000·4 cites·20 claims
- 2534US8188779B2Duty control buffer circuit and duty correction circuitWATARAI SEIICHI·Filed 2009·Granted May 29, 2012·0 cites·6 claims
- 2631US6043678AInput circuitNEC CORP·Filed 1997·Granted Mar 28, 2000·1 cites·15 claims
- 2730US6288580B1Level-shifting circuit and input and output circuits using the sameNEC CORP·Filed 1999·Granted Sep 11, 2001·0 cites·49 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →