Inventor · disambiguated record
Masakazu Aoki
Also filed as: AOKI MASAKAZU
151 granted patents·7 pending applications·4,755 citations·filing 1976–2023
99Inventor score
Files withHITACHI LTD103TOYOTA MOTOR CO LTD10RENESAS TECH CORP7TOYOTA CHUO KENKYUSHO KK7MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6
Top patents by PatentIndex Score
158 records- 0199US5583457ASemiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 1994·Granted Dec 10, 1996·251 cites·71 claims
- 0299US4661929ASemiconductor memory having multiple level storage structureHITACHI LTD·Filed 1984·Granted Apr 28, 1987·239 cites·28 claims
- 0398US5724297ASemiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 1996·Granted Mar 3, 1998·138 cites·40 claims
- 0498US5539279AFerroelectric memoryHITACHI LTD·Filed 1994·Granted Jul 23, 1996·218 cites·30 claims
- 0597US5614847ASemiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 1994·Granted Mar 25, 1997·140 cites·29 claims
- 0696US4942556ASemiconductor memory deviceHITACHI LTD·Filed 1989·Granted Jul 17, 1990·125 cites·30 claims
- 0796US4701884ASemiconductor memory for serial data accessHITACHI LTD·Filed 1986·Granted Oct 20, 1987·120 cites·26 claims
- 0895US5910924ASemiconductor integrated circuit including voltage converter effective at low operational voltagesHITACHI LTD·Filed 1997·Granted Jun 8, 1999·154 cites·23 claims
- 0995US5629898ADynamic memory device, a memory module, and a method of refreshing a dynamic memory deviceHITACHI LTD·Filed 1996·Granted May 13, 1997·142 cites·15 claims
- 1095US5274601ASemiconductor integrated circuit having a stand-by current reducing circuitHITACHI LTD·Filed 1992·Granted Dec 28, 1993·150 cites·28 claims
- 1194US7312640B2Semiconductor integrated circuit device having power reduction mechanismRENESAS TECH CORP·Filed 2005·Granted Dec 25, 2007·18 cites·6 claims
- 1294US6535435B2Reference voltage generator permitting stable operationHITACHI LTD·Filed 2001·Granted Mar 18, 2003·82 cites·3 claims
- 1394US4994688ASemiconductor device having a reference voltage generating circuitHITACHI LTD·Filed 1989·Granted Feb 19, 1991·105 cites·18 claims
- 1494US4295055ACircuit for generating scanning pulsesHITACHI LTD·Filed 1979·Granted Oct 13, 1981·45 cites·29 claims
- 1593US7750668B2Semiconductor integrated circuit device having power reduction mechanismRENESAS TECH CORP·Filed 2007·Granted Jul 6, 2010·13 cites·7 claims
- 1693US5926430ASemiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 1997·Granted Jul 20, 1999·52 cites·46 claims
- 1793US4929161AAir-cooled oil-free rotary-type compressorHITACHI LTD·Filed 1988·Granted May 29, 1990·47 cites·21 claims
- 1892US6909647B2Semiconductor device having redundancy circuitRENESAS TECH CORP·Filed 2004·Granted Jun 21, 2005·38 cites·11 claims
- 1992US6461112B1Screw compression apparatus and operation control method thereofHITACHI LTD·Filed 2000·Granted Oct 8, 2002·39 cites·15 claims
- 2092US6335893B1Semiconductor integrated circuit deviceHITACHI LTD·Filed 1998·Granted Jan 1, 2002·91 cites·23 claims
- 2192US5880604ASemiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 1996·Granted Mar 9, 1999·79 cites·57 claims
- 2292US5426616ASemiconductor IC device having a voltage conversion circuit which generates an internal supply voltage having value compensated for external supply voltage variationsHITACHI LTD·Filed 1994·Granted Jun 20, 1995·95 cites·89 claims
- 2392US5272393AVoltage converter of semiconductor deviceHITACHI LTD·Filed 1991·Granted Dec 21, 1993·66 cites·2 claims
- 2492US4844828ADetergent dispenser pouch made of cold water-soluble PVA containing acetalized unitsKAO CORP·Filed 1988·Granted Jul 4, 1989·71 cites·3 claims
- 2591US6696865B2Semiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 2002·Granted Feb 24, 2004·32 cites·4 claims
- 2691US5364250AOil-free screw compressor and method of manufactureHITACHI LTD·Filed 1993·Granted Nov 15, 1994·65 cites·15 claims
- 2791US4653025ARandom access memory with high density and low powerHITACHI LTD·Filed 1984·Granted Mar 24, 1987·58 cites·8 claims
- 2890US6337817B1Semiconductor device having redundancy circuitHITACHI LTD·Filed 2000·Granted Jan 8, 2002·34 cites·20 claims
- 2990US5617365ASemiconductor device having redundancy circuitHITACHI LTD·Filed 1995·Granted Apr 1, 1997·48 cites·25 claims
- 3089US6287083B1Compressed air production facilityHITACHI LTD·Filed 2000·Granted Sep 11, 2001·36 cites·16 claims
- 3189US6222406B1Semiconductor integrated circuit device, semiconductor memory system and clock synchronous circuitHITACHI LTD·Filed 1998·Granted Apr 24, 2001·55 cites·30 claims
- 3288US4709350ASemiconductor memory using multiple level storage structureHITACHI LTD·Filed 1984·Granted Nov 24, 1987·44 cites·15 claims
- 3386US7391998B2Developing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jun 24, 2008·9 cites·20 claims
- 3486US6894944B2Semiconductor integrated circuit deviceRENESAS TECH CORP·Filed 2003·Granted May 17, 2005·34 cites·5 claims
- 3586US6611458B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2001·Granted Aug 26, 2003·23 cites·17 claims
- 3686US5955905ASignal generator with synchronous mirror delay circuitHITACHI LTD·Filed 1997·Granted Sep 21, 1999·54 cites·16 claims
- 3786US5528548AVoltage converter of semiconductor deviceHITACHI LTD·Filed 1995·Granted Jun 18, 1996·42 cites·21 claims
- 3886US5455786AFerroelectric memoryHITACHI LTD·Filed 1994·Granted Oct 3, 1995·62 cites·9 claims
- 3986US5384740AReference voltage generatorHITACHI LTD·Filed 1993·Granted Jan 24, 1995·54 cites·13 claims
- 4085US5828235ASemiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 1996·Granted Oct 27, 1998·34 cites·36 claims
- 4185US5265055ASemiconductor memory having redundancy circuitHITACHI LTD·Filed 1991·Granted Nov 23, 1993·59 cites·12 claims
- 4285US4958325ALow noise semiconductor memoryHITACHI LTD·Filed 1988·Granted Sep 18, 1990·48 cites·26 claims
- 4385US4725210AOilless rotary-type compressor systemHITACHI LTD·Filed 1986·Granted Feb 16, 1988·33 cites·10 claims
- 4484US5600163ASemiconductor element and semiconductor memory device using the sameHITACHI LTD·Filed 1994·Granted Feb 4, 1997·32 cites·49 claims
- 4584US5056095ASemiconductor memory having error correction circuitHITACHI LTD·Filed 1989·Granted Oct 8, 1991·76 cites·22 claims
- 4683US6504402B2Semiconductor integrated circuit device having power reduction mechanismHITACHI LTD·Filed 2002·Granted Jan 7, 2003·16 cites·4 claims
- 4783US5262993ASemiconductor memory having redundancy circuit with means to switch power from a normal memory block to a spare memory blockHITACHI LTD·Filed 1991·Granted Nov 16, 1993·41 cites·13 claims
- 4883US5011388AOil-free screw compressor apparatusHITACHI LTD·Filed 1989·Granted Apr 30, 1991·30 cites·18 claims
- 4983US4726021ASemiconductor memory having error correcting meansHITACHI LTD·Filed 1986·Granted Feb 16, 1988·71 cites·12 claims
- 5082US6498915B2Color image forming apparatus with separate housings for image forming unitsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 24, 2002·20 cites·8 claims
Showing the top 50 of 158 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →