Inventor · disambiguated record
Masahisa Kosaka
Also filed as: KOSAKA MASAHISA
16 granted patents·4 pending applications·353 citations·filing 1988–2009
94Inventor score
Files withHOYA CORP19
Top patents by PatentIndex Score
20 records- 0193US6441119B1Optical materials having good ultraviolet absorbability and method for producing themHOYA CORP·Filed 2000·Granted Aug 27, 2002·34 cites·6 claims
- 0291US5961889AProcess of producing polythiol oligomerHOYA CORP·Filed 1997·Granted Oct 5, 1999·64 cites·27 claims
- 0390US4975328AProcess for producing polyurethane lensHOYA CORP·Filed 1988·Granted Dec 4, 1990·61 cites·6 claims
- 0484US5181141AAnti-reflection optical elementHOYA CORP·Filed 1992·Granted Jan 19, 1993·74 cites·11 claims
- 0582US6673888B2Optical materials having good ultraviolet absorbability and method for producing themHOYA CORP·Filed 2002·Granted Jan 6, 2004·13 cites·15 claims
- 0676US6448304B1Optical materials having good ultraviolet absorbability and method for producing themHOYA CORP·Filed 2000·Granted Sep 10, 2002·18 cites·15 claims
- 0774US7261845B2Plastic lens and process for preparing the lensHOYA CORP·Filed 2004·Granted Aug 28, 2007·16 cites·6 claims
- 0873US5294666APolymer for optical products and process for preparation thereofHOYA CORP·Filed 1992·Granted Mar 15, 1994·20 cites·20 claims
- 0964US5744568AProcess for the production of polyurethane lensHOYA CORP·Filed 1997·Granted Apr 28, 1998·17 cites·15 claims
- 1059US7009025B2Optical materials having good ultraviolet absorbability and method for producing themHOYA CORP·Filed 2004·Granted Mar 7, 2006·4 cites·10 claims
- 1158US6743886B2Plastic lenses for spectaclesHOYA CORP·Filed 2001·Granted Jun 1, 2004·3 cites·23 claims
- 1257US7101953B2Process for producing plastic lens and plastic lensHOYA CORP·Filed 2003·Granted Sep 5, 2006·5 cites·20 claims
- 1352US7091301B2Plastic lenses for spectaclesHOYA CORP·Filed 2004·Granted Aug 15, 2006·1 cites·10 claims
- 1449US7001974B2Process for producing plastic lens and plastic lensHOYA CORP·Filed 2003·Granted Feb 21, 2006·2 cites·19 claims
- 1549US5635580AProcess for the production of polyurethane lensHOYA CORP·Filed 1995·Granted Jun 3, 1997·9 cites·15 claims
- 1649US2010093970A1Process of producing plastic lens and plastic lensHOYA CORP·Filed 2009·Application pending·0 cites
- 1745US6274694B1Process for the production of polyurethane lensHOYA CORP·Filed 1999·Granted Aug 14, 2001·12 cites·13 claims
- 1845US2007141355A1Plastic lens and process for preparing the lensHOYA CORP·Filed 2006·Application pending·0 cites
- 1945US2005062932A1Process of producing plastic lens and plastic lensHOYA CORP·Filed 2004·Application pending·0 cites
- 2042US2005046967A1Plastic lens and process for preparing the lensFiled 2004·Application pending·0 cites
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