Inventor · disambiguated record
Katsuya Ishikawa
Also filed as: ISHIKAWA KATSUYA
32 granted patents·1 pending application·892 citations·filing 1989–2022
97Inventor score
Files withFUJITSU LTD13MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5IBM4MATSUSHITA ELECTRONICS CORP4FUJITSU MICROELECTRONICS LTD3
Top patents by PatentIndex Score
33 records- 0191US6711042B2Semiconductor device whereon memory chip and logic chip are mounted, making testing of memory chip possibleFUJITSU LTD·Filed 2002·Granted Mar 23, 2004·65 cites·18 claims
- 0291US5262735ARing oscillator having outputs that are selectively combined to produce different frequenciesFUJITSU LTD·Filed 1992·Granted Nov 16, 1993·67 cites·12 claims
- 0387US7113227B1Gradation correcting apparatus gradation correcting method and video display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 26, 2006·39 cites·20 claims
- 0487US5636218AGateway system that relays data via a PBX to a computer connected to a pots and a computer connected to an extension telephone and a lanand a method for controlling sameIBM·Filed 1995·Granted Jun 3, 1997·202 cites·5 claims
- 0586US5220559ANeuron architectureFUJITSU LTD·Filed 1989·Granted Jun 15, 1993·56 cites·33 claims
- 0685US6084911ATransmission of coded and compressed voice and image data in fixed bit length data packetsIBM·Filed 1997·Granted Jul 4, 2000·131 cites·16 claims
- 0785US5131072ANeurocomputer with analog signal busFUJITSU LTD·Filed 1989·Granted Jul 14, 1992·51 cites·47 claims
- 0880US6633343B2Dynamic gamma correction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 14, 2003·23 cites·10 claims
- 0977US6636229B2Gradation correction circuit, and γ correction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 21, 2003·16 cites·5 claims
- 1074US5650741APower line connection circuit and power line switch IC for the sameFUJITSU LTD·Filed 1996·Granted Jul 22, 1997·29 cites·6 claims
- 1172US5142666ALearning system in a neuron computerFUJITSU LTD·Filed 1990·Granted Aug 25, 1992·36 cites·11 claims
- 1266US7590016B2Integrated circuitFUJITSU MICROELECTRONICS LTD·Filed 2007·Granted Sep 15, 2009·6 cites·12 claims
- 1361US12453208B2Light detecting device and method for controlling light detecting deviceHAMAMATSU PHOTONICS KK·Filed 2022·Granted Oct 21, 2025·0 cites·12 claims
- 1460US6038602AConnection method for a network system and a server computerIBM·Filed 1997·Granted Mar 14, 2000·46 cites·6 claims
- 1557US6785857B1Fixed-logic signal generated in an integrated circuit for testing a function macro integrated in an integrated circuitFUJITSU LTD·Filed 2000·Granted Aug 31, 2004·6 cites·37 claims
- 1657US6580464B1Color difference signal correction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 17, 2003·3 cites·12 claims
- 1755US7623399B2Semiconductor memory for relieving a defective bitFUJITSU MICROELECTRONICS LTD·Filed 2006·Granted Nov 24, 2009·3 cites·13 claims
- 1854US7613968B2Device and method for JTAG testFUJITSU MICROELECTRONICS LTD·Filed 2005·Granted Nov 3, 2009·2 cites·12 claims
- 1949US6909649B2Semiconductor device and semiconductor integrated circuitFUJITSU LTD·Filed 2003·Granted Jun 21, 2005·7 cites·19 claims
- 2049US6650647B1Systems, apparatus and methods for data distribution and displayIBM·Filed 1999·Granted Nov 18, 2003·28 cites·21 claims
- 2147US5579340AWaveform equalizerFUJITSU LTD·Filed 1994·Granted Nov 26, 1996·8 cites·11 claims
- 2247US5262661ASolid-state image pickup device, having increased charge storage and improved electronic shutter operationMATSUSHITA ELECTRONICS CORP·Filed 1991·Granted Nov 16, 1993·11 cites·20 claims
- 2345US5160708ADry type simultaneous desulfurization and dedusting apparatus and method of operation thereforKAWASAKI HEAVY IND LTD·Filed 1991·Granted Nov 3, 1992·12 cites·2 claims
- 2444US5216746AError absorbing system in a neuron computerFUJITSU LTD·Filed 1990·Granted Jun 1, 1993·10 cites·28 claims
- 2543US5324669AProcess for manufacturing a solid state image pickup device having increased charge storage and improved electronic shutter operationMATSUSHITA ELECTRONICS CORP·Filed 1993·Granted Jun 28, 1994·8 cites·3 claims
- 2640US6046069ASolid-state image pick-up device and method for manufacturing the sameMATSUSHITA ELECTRONICS CORP·Filed 1997·Granted Apr 4, 2000·7 cites·4 claims
- 2740US5126683ADetection circuit for amplitude modulated signalsFUJITSU LTD·Filed 1990·Granted Jun 30, 1992·8 cites·8 claims
- 2839US7178077B2Integrated circuit test apparatusFUJITSU LTD·Filed 2004·Granted Feb 13, 2007·0 cites·8 claims
- 2939US6965417B2Signal processorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 15, 2005·0 cites·6 claims
- 3037US5786607ASolid-state image pick-up device and method for manufacturing the sameMATSUSHITA ELECTRONICS CORP·Filed 1996·Granted Jul 28, 1998·6 cites·8 claims
- 3133US5102636AMethod of operation of a dry type simultaneous desulfurization and dedusting apparatusKAWASAKI HEAVY IND LTD·Filed 1990·Granted Apr 7, 1992·6 cites·3 claims
- 3232US10321567B2Method for producing electronic componentsHAMAMATSU PHOTONICS KK·Filed 2015·Granted Jun 11, 2019·0 cites·5 claims
- 3331US2003028835A1Semiconductor integrated circuitFUJITSU LTD·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →