Inventor · disambiguated record
Akihiko Ishiyama
Also filed as: ISHIYAMA AKIHIKO
6 granted patents·139 citations·filing 1986–2001
85Inventor score
Top patents by PatentIndex Score
6 records- 0193US4726738AMotor-driven compressor provided with torque control deviceHITACHI LTD·Filed 1986·Granted Feb 23, 1988·61 cites·20 claims
- 0269US6905318B2Compressor including tapered discharged valve and valve seatHITACHI LTD·Filed 2001·Granted Jun 14, 2005·11 cites·13 claims
- 0366US5591023ARotary type compressorHITACHI METALS LTD·Filed 1995·Granted Jan 7, 1997·27 cites·4 claims
- 0445US5540061ARefrigeratorHITACHI LTD·Filed 1993·Granted Jul 30, 1996·16 cites·12 claims
- 0545US5494423ARotary compressor and blade tip structureHITACHI LTD·Filed 1995·Granted Feb 27, 1996·12 cites·8 claims
- 0645US5423664AIron-base alloy for rotary type compressorsHITACHI LTD·Filed 1994·Granted Jun 13, 1995·12 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →