Inventor · disambiguated record
Hirohiko Izumi
Also filed as: IZUMI HIROHIKO
11 granted patents·1 pending application·1,033 citations·filing 1991–2005
91Inventor score
Files withNIPPON STEEL CORP7UNITED MICROELECTRONICS CORP2INT SUPERCONDUCTIVITY TECH1TOKYO SEIMITSU CO LTD1
Top patents by PatentIndex Score
12 records- 0197US5306666AProcess for forming a thin metal film by chemical vapor depositionNIPPON STEEL CORP·Filed 1993·Granted Apr 26, 1994·847 cites·8 claims
- 0283US6022400APolishing abrasive grains, polishing agent and polishing methodNIPPON STEEL CORP·Filed 1998·Granted Feb 8, 2000·72 cites·4 claims
- 0380US5644151ASemiconductor memory device and method for fabricating the sameNIPPON STEEL CORP·Filed 1995·Granted Jul 1, 1997·45 cites·27 claims
- 0463US5877088AFlattening method and apparatus for semiconductor deviceNIPPON STEEL CORP·Filed 1996·Granted Mar 2, 1999·30 cites·41 claims
- 0559US7064029B2Semiconductor memory device and method of producing the sameUNITED MICROELECTRONICS CORP·Filed 2005·Granted Jun 20, 2006·1 cites·16 claims
- 0652US6255686B1Semiconductor storage device including short circuit avoiding structure and method of fabricating thereofNIPPON STEEL CORP·Filed 1998·Granted Jul 3, 2001·14 cites·12 claims
- 0746US5281575ALaser ablation method for forming oxide superconducting filmsINT SUPERCONDUCTIVITY TECH·Filed 1991·Granted Jan 25, 1994·11 cites·6 claims
- 0845US6648739B2Wafer polishing apparatusTOKYO SEIMITSU CO LTD·Filed 2001·Granted Nov 18, 2003·3 cites·3 claims
- 0945US6392264B2Semiconductor memory device and method of producing the sameFiled 1998·Granted May 21, 2002·10 cites·34 claims
- 1039US6838333B2Semiconductor memory device and method of producing the sameUNITED MICROELECTRONICS CORP·Filed 2002·Granted Jan 4, 2005·0 cites·4 claims
- 1139US2002070401A1Semiconductor storage device and method of fabricating thereofNIPPON STEEL CORP·Filed 2001·Application pending·0 cites
- 1238US6461912B2Method of fabricating semiconductor storage device having a capacitorNIPPON STEEL CORP·Filed 2001·Granted Oct 8, 2002·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →