Inventor · disambiguated record
Tohru Ishizuka
Also filed as: ISHIZUKA TOHRU
13 granted patents·1 pending application·54 citations·filing 1987–2013
88Inventor score
Top patents by PatentIndex Score
14 records- 0183US6423285B1Method for producing silicon single crystal and production apparatus therefor, as well as single crystal and silicon wafer produced by the methodSHINETSU HANDOTAI KK·Filed 2000·Granted Jul 23, 2002·23 cites·15 claims
- 0282US7861421B2Method for measuring rotation angle of bonded waferSHINETSU HANDOTAI KK·Filed 2008·Granted Jan 4, 2011·8 cites·8 claims
- 0375US8823130B2Silicon epitaxial wafer, method for manufacturing the same, bonded SOI wafer and method for manufacturing the sameKATO MASAHIRO·Filed 2011·Granted Sep 2, 2014·4 cites·8 claims
- 0464US8097523B2Method for manufacturing bonded waferKOBAYASHI NORIHIRO·Filed 2009·Granted Jan 17, 2012·3 cites·6 claims
- 0561US4829067ABenzo-furan derivativeTANABE SEIYAKU CO·Filed 1987·Granted May 9, 1989·11 cites·9 claims
- 0648US8466538B2SOI wafer, semiconductor device, and method for manufacturing SOI waferISHIZUKA TOHRU·Filed 2009·Granted Jun 18, 2013·0 cites·5 claims
- 0747US8202787B2Method for manufacturing SOI waferISHIZUKA TOHRU·Filed 2009·Granted Jun 19, 2012·0 cites·16 claims
- 0847US2011151643A1Method for manufacturing bonded waferSHINETSU HANDOTAI KK·Filed 2009·Application pending·0 cites
- 0946US7799660B2Method for manufacturing SOI substrateSHINETSU HANDOTAI KK·Filed 2008·Granted Sep 21, 2010·0 cites·8 claims
- 1045US8697544B2Method for manufacturing bonded waferISHIZUKA TOHRU·Filed 2009·Granted Apr 15, 2014·0 cites·1 claims
- 1144US4882340ABenzofuran derivative and processes for preparing the sameTANABE SEIYAKU CO·Filed 1988·Granted Nov 21, 1989·2 cites·8 claims
- 1243US9142449B2Method for manufacturing bonded waferSHINETSU HANDOTAI KK·Filed 2013·Granted Sep 22, 2015·0 cites·3 claims
- 1338US8338277B2Method for manufacturing SOI substrateTAKENO HIROSHI·Filed 2008·Granted Dec 25, 2012·0 cites·2 claims
- 1432US5252589ABenzocycloheptene derivative and process for preparation thereofTANABE SEIKAYU CO LTD·Filed 1992·Granted Oct 12, 1993·3 cites·9 claims
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