Inventor · disambiguated record
Yukio Ishigaki
Also filed as: ISHIGAKI YUKIO
11 granted patents·211 citations·filing 1988–2003
91Inventor score
Top patents by PatentIndex Score
11 records- 0183US6688106B2Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 2001·Granted Feb 10, 2004·22 cites·5 claims
- 0278US6369601B1Method of measuring a propagation delay time through a transmission path in a semiconductor integrated circuit testing apparatus and semiconductor integrated circuit testing apparatus using the sameADVANTEST CORP·Filed 1999·Granted Apr 9, 2002·45 cites·19 claims
- 0373US6417682B1Semiconductor device testing apparatus and its calibration methodADVANTEST CORP·Filed 1999·Granted Jul 9, 2002·46 cites·42 claims
- 0458US5532638ASuperconducting energy storage apparatusHITACHI LTD·Filed 1993·Granted Jul 2, 1996·21 cites·4 claims
- 0556US4920095ASuperconducting energy storage deviceHITACHI LTD·Filed 1988·Granted Apr 24, 1990·25 cites·28 claims
- 0652US5218505ASuperconductor coil system and method of operating the sameHITACHI LTD·Filed 1990·Granted Jun 8, 1993·18 cites·15 claims
- 0747US6058856AWaste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1998·Granted May 9, 2000·12 cites·5 claims
- 0847US6014863AWaste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1997·Granted Jan 18, 2000·12 cites·14 claims
- 0944US6442938B2Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 2001·Granted Sep 3, 2002·1 cites·5 claims
- 1043US6282902B1Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1999·Granted Sep 4, 2001·7 cites·6 claims
- 1139US6828799B2Propagation delay time measuring method and testing apparatusADVANTEST CORP·Filed 2003·Granted Dec 7, 2004·2 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →