Inventor · disambiguated record
Shigefumi Ishiguro
Also filed as: ISHIGURO SHIGEFUMI
9 granted patents·37 citations·filing 1990–2022
81Inventor score
Top patents by PatentIndex Score
9 records- 0159US5208780AStructure of electrically programmable read-only memory cells and redundancy signature thereforTOSHIBA KK·Filed 1991·Granted May 4, 1993·22 cites·3 claims
- 0253US11870248B2Semiconductor deviceKIOXIA CORP·Filed 2022·Granted Jan 9, 2024·0 cites·13 claims
- 0349US11728642B2Semiconductor device and protection circuitKIOXIA CORP·Filed 2021·Granted Aug 15, 2023·0 cites·20 claims
- 0441US5257230AMemory device including redundancy cells with programmable fuel elements and process of manufacturing the sameTOSHIBA KK·Filed 1990·Granted Oct 26, 1993·14 cites·3 claims
- 0540US7577058B2Semiconductor device having input detection circuit which operates in a synchronous operation and an asynchronous operationTOSHIBA KK·Filed 2007·Granted Aug 18, 2009·0 cites·20 claims
- 0639US8189424B2Semiconductor memory device having plurality of types of memories integrated on one chipUEHARA KAZUTO·Filed 2009·Granted May 29, 2012·1 cites·19 claims
- 0736US7606083B2Semiconductor memory device with a noise filter and method of controlling the sameTOSHIBA KK·Filed 2007·Granted Oct 20, 2009·0 cites·18 claims
- 0829US8259523B2Semiconductor memory deviceWATANABE TOSHIFUMI·Filed 2010·Granted Sep 4, 2012·0 cites·15 claims
- 0928US8223569B2Semiconductor memory deviceHAMANO TOMOYUKI·Filed 2010·Granted Jul 17, 2012·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →