Inventor · disambiguated record
Yasuo Ohama
Also filed as: OHAMA YASUO
16 granted patents·113 citations·filing 2001–2018
93Inventor score
Files withHERAEUS SHIN ETSU AMERICA INC6HERAEUS QUARZGLAS3SHINETSU QUARTZ PROD3OHAMA YASUO2HERAEUS QUARZGLAS GMBH & CO K1
Top patents by PatentIndex Score
16 records- 0190US7383696B2Silica glass crucible with bubble-free and reduced bubble growth wallHERAEUS SHIN ETSU AMERICA INC·Filed 2005·Granted Jun 10, 2008·14 cites·19 claims
- 0285US8361228B2Crucible having a doped upper wall portion and method for making the sameHERAEUS SHIN ETSU AMERICA INC·Filed 2010·Granted Jan 29, 2013·4 cites·10 claims
- 0385US7716948B2Crucible having a doped upper wall portion and method for making the sameHERAEUS SHIN ETSU AMERICA INC·Filed 2006·Granted May 18, 2010·6 cites·16 claims
- 0484US7556764B2Silica vessel with nozzle and method of makingHERAEUS SHIN ETSU AMERICA INC·Filed 2005·Granted Jul 7, 2009·5 cites·7 claims
- 0584US6886364B2Method for producing quartz glass crucibleSHINETSU QUARTZ PROD·Filed 2001·Granted May 3, 2005·13 cites·9 claims
- 0680US7993556B2Method for making a silica glass crucibleHERAEUS SHIN ETSU AMERICA INC·Filed 2007·Granted Aug 9, 2011·4 cites·28 claims
- 0777US6841210B2Multilayer structured quartz glass crucible and method for producing the sameHERAEUS QUARZGLAS·Filed 2001·Granted Jan 11, 2005·13 cites·14 claims
- 0875US7427327B2Silica glass crucible with barium-doped inner wallHERAEUS SHIN ETSU AMERICA INC·Filed 2006·Granted Sep 23, 2008·8 cites·15 claims
- 0975US6797061B2Quartz glass crucible for pulling up silicon single crystal and production method thereforSHINETSU QUARTZ PROD·Filed 2001·Granted Sep 28, 2004·8 cites·18 claims
- 1074US7299658B2Quartz glass crucible for the pulling up of silicon single crystalHERAEUS QUARZGLAS GMBH & CO K·Filed 2004·Granted Nov 27, 2007·15 cites·20 claims
- 1169US7587912B2Method for producing quartz glass crucible for use in pulling silicon single crystal and quartz glass crucible produced by said methodHERAEUS QUARZGLAS·Filed 2004·Granted Sep 15, 2009·7 cites·4 claims
- 1260US8277559B2Quartz glass crucible for pulling up silicon single crystal and method for manufacture thereofOHAMA YASUO·Filed 2004·Granted Oct 2, 2012·5 cites·12 claims
- 1360US7686887B2Quartz glass crucible for pulling up silicon single crystal and method for producing the sameHERAEUS QUARZGLAS·Filed 2003·Granted Mar 30, 2010·9 cites·4 claims
- 1459US11905196B2Mold and method for manufacturing quartz glass crucibleSHIN ETSU QUARTZ PROD CO LTD·Filed 2018·Granted Feb 20, 2024·0 cites·16 claims
- 1553US7074731B2Method for producing hydrogen-doped silica powder, hydrogen-doped silica powder obtained from that method for use in a quartz glass crucibleSHINETSU QUARTZ PROD·Filed 2003·Granted Jul 11, 2006·2 cites·8 claims
- 1649US8555674B2Quartz glass crucible for silicon single crystal pulling operation and process for manufacturing the sameOHAMA YASUO·Filed 2008·Granted Oct 15, 2013·0 cites·9 claims
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