Assignee
FUJITSU LTD
33,410 granted patents·12,053 pending applications·649,031 citations·filing 1971–2025
Top patents by PatentIndex Score
45,463 records- 0199US11627682B2Rack-mounted device and electronic apparatusFUJITSU LTD·Filed 2020·Granted Apr 11, 2023·16 cites·20 claims
- 0299US11012187B1Error correction in optical networks with probabilistic shaping and symbol rate optimizationFUJITSU LTD·Filed 2020·Granted May 18, 2021·25 cites·20 claims
- 0399US9673907B1Constellation shaping of modulation formats for optical communication systemsFUJITSU LTD·Filed 2016·Granted Jun 6, 2017·71 cites·24 claims
- 0499US9485554B1Methods and systems for using modulation frequencies for optical channel monitoring with periodic optical filteringFUJITSU LTD·Filed 2015·Granted Nov 1, 2016·60 cites·20 claims
- 0599US9419720B2Optical signal transmitterFUJITSU LTD·Filed 2015·Granted Aug 16, 2016·57 cites·3 claims
- 0699US9397619B2Distortion compensation apparatus and distortion compensation methodFUJITSU LTD·Filed 2014·Granted Jul 19, 2016·313 cites·5 claims
- 0799US8349536B2Dithiane derivative, polymer, resist composition, and method for manufacturing semiconductor device using such resist compositionFUJITSU LTD·Filed 2010·Granted Jan 8, 2013·47 cites·13 claims
- 0899US7801826B2Framework and system for purchasing of goods and servicesFUJITSU LTD·Filed 2003·Granted Sep 21, 2010·478 cites·24 claims
- 0999US7784684B2Wireless computer wallet for physical point of sale (POS) transactionsFUJITSU LTD·Filed 2006·Granted Aug 31, 2010·448 cites·23 claims
- 1099US7634718B2Handwritten information input apparatusFUJITSU LTD·Filed 2005·Granted Dec 15, 2009·260 cites·13 claims
- 1199US7606560B2Authentication services using mobile deviceFUJITSU LTD·Filed 2006·Granted Oct 20, 2009·676 cites·20 claims
- 1299US7424694B2Integrated circuit layout device, method thereof and program thereofFUJITSU LTD·Filed 2006·Granted Sep 9, 2008·217 cites·17 claims
- 1399US7349871B2Methods for purchasing of goods and servicesFUJITSU LTD·Filed 2003·Granted Mar 25, 2008·602 cites·31 claims
- 1499US7173604B2Gesture identification of controlled devicesFUJITSU LTD·Filed 2004·Granted Feb 6, 2007·470 cites·21 claims
- 1599US7154748B2Cooling structure of electronic equipment and information processing equipment using the cooling structureFUJITSU LTD·Filed 2004·Granted Dec 26, 2006·202 cites·22 claims
- 1699US7043207B2Fading frequency estimating apparatusFUJITSU LTD·Filed 2005·Granted May 9, 2006·189 cites·28 claims
- 1799US6707436B2Method for driving plasma display panelFUJITSU LTD·Filed 1999·Granted Mar 16, 2004·540 cites·22 claims
- 1899US6684007B2Optical coupling structures and the fabrication processesFUJITSU LTD·Filed 2001·Granted Jan 27, 2004·249 cites·4 claims
- 1999US6639849B2Nonvolatile semiconductor memory device programming second dynamic reference cell according to threshold value of first dynamic reference cellFUJITSU LTD·Filed 2003·Granted Oct 28, 2003·369 cites·10 claims
- 2099US6630916B1Method and a circuit for gradationally driving a flat display deviceFUJITSU LTD·Filed 1999·Granted Oct 7, 2003·513 cites·12 claims
- 2199US6527182B1Image reading apparatus and image processing apparatusFUJITSU LTD·Filed 2000·Granted Mar 4, 2003·293 cites·12 claims
- 2299US6489676B2Semiconductor device having an interconnecting post formed on an interposer within a sealing resinFUJITSU LTD·Filed 2001·Granted Dec 3, 2002·289 cites·12 claims
- 2399US6444921B1Reduced stress and zero stress interposers for integrated-circuit chips, multichip substrates, and the likeFUJITSU LTD·Filed 2000·Granted Sep 3, 2002·200 cites·39 claims
- 2499US6388801B1Optical amplification apparatus utilizing Raman amplification and controlling method thereofFUJITSU LTD·Filed 2001·Granted May 14, 2002·134 cites·25 claims
- 2599USRE37444EMethod and apparatus for driving display panelFUJITSU LTD·Filed 1997·Granted Nov 13, 2001·443 cites·55 claims
- 2699US6072239ADevice having resin package with projectionsFUJITSU LTD·Filed 1996·Granted Jun 6, 2000·241 cites·14 claims
- 2799US5841284AApparatus for monitoring power of battery to supply electric power to loadFUJITSU LTD·Filed 1995·Granted Nov 24, 1998·943 cites·4 claims
- 2899US5835911ASoftware distribution and maintenance system and methodFUJITSU LTD·Filed 1995·Granted Nov 10, 1998·794 cites·94 claims
- 2999US5724054AMethod and a circuit for gradationally driving a flat display deviceFUJITSU LTD·Filed 1996·Granted Mar 3, 1998·523 cites·15 claims
- 3099US5663741AController of plasma display panel and method of controlling the sameFUJITSU LTD·Filed 1996·Granted Sep 2, 1997·599 cites·13 claims
- 3199US5625222ASemiconductor device in a resin package housed in a frame having high thermal conductivityFUJITSU LTD·Filed 1994·Granted Apr 29, 1997·1k cites·8 claims
- 3299US5541618AMethod and a circuit for gradationally driving a flat display deviceFUJITSU LTD·Filed 1995·Granted Jul 30, 1996·615 cites·11 claims
- 3399US4939568AThree-dimensional integrated circuit and manufacturing method thereofFUJITSU LTD·Filed 1989·Granted Jul 3, 1990·757 cites·15 claims
- 3499US4733288AGate-array chipFUJITSU LTD·Filed 1986·Granted Mar 22, 1988·287 cites·10 claims
- 3599US4682202AMaster slice IC deviceFUJITSU LTD·Filed 1984·Granted Jul 21, 1987·268 cites·9 claims
- 3699US4424525AHigh electron mobility single heterojunction semiconductor devicesFUJITSU LTD·Filed 1980·Granted Jan 3, 1984·195 cites·17 claims
- 3799US4371955ACharge-pumping MOS FET memory deviceFUJITSU LTD·Filed 1980·Granted Feb 1, 1983·205 cites·12 claims
- 3899US4262340ASemiconductor memory deviceFUJITSU LTD·Filed 1979·Granted Apr 14, 1981·206 cites·7 claims
- 3999US4250569ASemiconductor memory deviceFUJITSU LTD·Filed 1978·Granted Feb 10, 1981·211 cites·19 claims
- 4098US11800477B2Method and apparatus for acquiring uplink transmission timing advance and communication systemFUJITSU LTD·Filed 2022·Granted Oct 24, 2023·5 cites·12 claims
- 4198US11432346B2Wireless communications system, base station, and mobile stationFUJITSU LTD·Filed 2020·Granted Aug 30, 2022·6 cites·8 claims
- 4298US11327722B1Programming language corpus generationFUJITSU LTD·Filed 2020·Granted May 10, 2022·14 cites·20 claims
- 4398US11228505B1Explanation of graph-based predictions using network motif analysisFUJITSU LTD·Filed 2021·Granted Jan 18, 2022·24 cites·20 claims
- 4498US10948802B2Wavelength converter apparatus and method of performing wavelength conversionFUJITSU LTD·Filed 2020·Granted Mar 16, 2021·10 cites·9 claims
- 4598US10396899B1Probabilistic constellation shaping using set-partitioned M-QAMFUJITSU LTD·Filed 2018·Granted Aug 27, 2019·34 cites·20 claims
- 4698US10243688B2Reach extension of multi-carrier channels using unequal subcarrier spacingFUJITSU LTD·Filed 2017·Granted Mar 26, 2019·51 cites·14 claims
- 4798US9620931B2Optical device, optical transmission device, optical reception device, hybrid laser and optical transmission apparatusFUJITSU LTD·Filed 2014·Granted Apr 11, 2017·37 cites·17 claims
- 4898US9520883B2Frequency detection circuit and reception circuitFUJITSU LTD·Filed 2015·Granted Dec 13, 2016·75 cites·6 claims
- 4998US9282528B2Apparatus and method for detecting a location of a mobile station in a mobile communication systemFUJITSU LTD·Filed 2013·Granted Mar 8, 2016·110 cites·9 claims
- 5098US9274565B2Hinge device and electronic apparatus using that hinge deviceFUJITSU LTD·Filed 2013·Granted Mar 1, 2016·49 cites·20 claims
Showing the top 50 of 45,463 patent records by PatentIndex Score.
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