Inventor · disambiguated record
Tadashi Umezawa
Also filed as: UMEZAWA TADASHI
10 granted patents·3 pending applications·187 citations·filing 1980–2009
90Inventor score
Top patents by PatentIndex Score
13 records- 0176US6329681B1Semiconductor integrated circuit device and method of manufacturing the sameFiled 1998·Granted Dec 11, 2001·38 cites·18 claims
- 0274US6235620B1Process for manufacturing semiconductor integrated circuit deviceHITACHI LTD·Filed 1999·Granted May 22, 2001·47 cites·43 claims
- 0372US8137571B2Method for manufacturing perpendicular magnetic recording headOKADA TOMOHIRO·Filed 2009·Granted Mar 20, 2012·2 cites·17 claims
- 0467US6660647B1Method for processing surface of sampleHITACHI LTD·Filed 1999·Granted Dec 9, 2003·28 cites·14 claims
- 0565US6686619B2Dynamic random access memory with improved contact arrangementsHITACHI LTD·Filed 2002·Granted Feb 3, 2004·7 cites·4 claims
- 0662US5784484ADevice for inspecting printed wiring boards at different resolutionsNEC CORP·Filed 1996·Granted Jul 21, 1998·40 cites·4 claims
- 0755US4305651ASystem for adjusting output current of discharge electrode for electrophotographic copying machinesKONISHIROKU PHOTO IND·Filed 1980·Granted Dec 15, 1981·11 cites·3 claims
- 0850US7259104B2Sample surface processing methodHITACHI LTD·Filed 2003·Granted Aug 21, 2007·2 cites·7 claims
- 0942US6191045B1Method of treating surface of sampleHITACHI LTD·Filed 1999·Granted Feb 20, 2001·10 cites·18 claims
- 1042US2003211673A1Dynamic random access memory with improved contact arrangementsFiled 2003·Application pending·0 cites
- 1140US2002047153A1Semiconductor integrated circuit device and method of manufacturing the sameFiled 2001·Application pending·0 cites
- 1236US2003045113A1Fabrication method of semiconductor integrated circuit deviceHITACHI LTD·Filed 2002·Application pending·0 cites
- 1332US4386844ATwo-cycle electrophotographic copying apparatus in which a cleaning lamp and a neutralizing electrode are disposed on opposite sides of an electric charging deviceKONISHIROKU PHOTO IND·Filed 1980·Granted Jun 7, 1983·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →