Inventor · disambiguated record
Masato Ikegawa
Also filed as: IKEGAWA MASATO
17 granted patents·2 pending applications·284 citations·filing 1980–2015
94Inventor score
Files withHITACHI LTD10HITACHI GLOBAL STORAGE TECH NL2HITACHI IND EQUIPMENT SYS2ABE YUKINOBU1HITACHI CHEMICAL CO LTD1
Top patents by PatentIndex Score
19 records- 0196US4365941AScroll compressor provided with means for pressing an orbiting scroll member against a stationary scroll member and self-cooling meansHITACHI LTD·Filed 1980·Granted Dec 28, 1982·90 cites·11 claims
- 0292US6427621B1Plasma processing device and plasma processing methodHITACHI LTD·Filed 2000·Granted Aug 6, 2002·42 cites·27 claims
- 0388US7457078B2Magnetic disk apparatus with reduced disk fluttering by placing a groove in the peripheral wall of the housingHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Nov 25, 2008·9 cites·17 claims
- 0479US8919934B2Inkjet recording apparatusHITACHI IND EQUIPMENT SYS·Filed 2013·Granted Dec 30, 2014·3 cites·7 claims
- 0579US7929246B2Magnetic disk drive with spoilerHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Apr 19, 2011·4 cites·8 claims
- 0679US7869159B2Apparatus and method for reducing turbulence of airflow in a hard disk driveHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Jan 11, 2011·3 cites·30 claims
- 0773US4350479AScrool-type fluid machine with liquid-filled force-balanced pocketsHITACHI LTD·Filed 1980·Granted Sep 21, 1982·25 cites·42 claims
- 0870US4384831AScroll-type fluid apparatus provided with means for counteracting a moment exerted on orbiting scroll memberHITACHI LTD·Filed 1980·Granted May 24, 1983·23 cites·14 claims
- 0969US4396364AScroll fluid apparatus with crankshaft bearing located in orbiting pin force planeHITACHI LTD·Filed 1981·Granted Aug 2, 1983·21 cites·9 claims
- 1065US8077431B2Apparatus and method for reducing turbulence of airflow in a hard disk driveABE YUKINOBU·Filed 2010·Granted Dec 13, 2011·2 cites·22 claims
- 1162US4441870AScroll memberHITACHI LTD·Filed 1981·Granted Apr 10, 1984·16 cites·6 claims
- 1262US4417863AScroll member assembly of scroll-type fluid machineHITACHI LTD·Filed 1981·Granted Nov 29, 1983·17 cites·14 claims
- 1352US4464100AScroll fluid apparatus handling compressible fluidHITACHI LTD·Filed 1982·Granted Aug 7, 1984·12 cites·6 claims
- 1452US4443166AScroll fluid apparatus with an arcuate recess adjacent the stationary wrapHITACHI LTD·Filed 1981·Granted Apr 17, 1984·12 cites·14 claims
- 1546US9636912B2Ink jet recording deviceHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2013·Granted May 2, 2017·0 cites·11 claims
- 1639US2004092044A1Ion current density measuring method and instrument, and semiconductor device manufacturing methodFiled 2003·Application pending·0 cites
- 1736US6656752B1Ion current density measuring method and instrument, and semiconductor device manufacturing methodHITACHI LTD·Filed 1999·Granted Dec 2, 2003·5 cites·5 claims
- 1835US7314522B2Apparatus and method for producing single crystalHITACHI CHEMICAL CO LTD·Filed 2003·Granted Jan 1, 2008·0 cites·16 claims
- 1932US2015321468A1Ink Jet Recording ApparatusHITACHI IND EQUIPMENT SYS·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →