Inventor · disambiguated record
Shigetaro Tagawa
Also filed as: TAGAWA SHIGETARO
6 granted patents·100 citations·filing 1984–2001
83Inventor score
Technology areasF04C
Files withHITACHI LTD6
Top patents by PatentIndex Score
6 records- 0181US4626180ARotary compressor with spiral oil grooves for crankshaftHITACHI LTD·Filed 1984·Granted Dec 2, 1986·35 cites·2 claims
- 0278US4561829ARotary compressor with tapered valve ports for lubricating pumpHITACHI LTD·Filed 1984·Granted Dec 31, 1985·29 cites·1 claims
- 0363US4636154AHorizontal type rotary compressorHITACHI LTD·Filed 1985·Granted Jan 13, 1987·19 cites·9 claims
- 0457US4544338AOil feeder means for use in a horizontal type rotary compressorHITACHI LTD·Filed 1984·Granted Oct 1, 1985·15 cites·5 claims
- 0544US6312237B2Displacement type fluid machineHITACHI LTD·Filed 2001·Granted Nov 6, 2001·2 cites·2 claims
- 0626US6220841B1Displacement type fluid machineHITACHI LTD·Filed 1999·Granted Apr 24, 2001·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →