Inventor · disambiguated record
Hiromasa Kawai
Also filed as: KAWAI HIROMASA
12 granted patents·2 pending applications·245 citations·filing 1981–2010
93Inventor score
Top patents by PatentIndex Score
14 records- 0196US7626281B2Energy converter, flag type energy converterUNIV KYOTO·Filed 2005·Granted Dec 1, 2009·61 cites·10 claims
- 0285US4591626APolymers of tricyclo[5.2.1.02,6 ]deca-8-yl (meth)acrylateHITACHI CHEMICAL CO LTD·Filed 1984·Granted May 27, 1986·36 cites·6 claims
- 0372US5449731AResin for plastic lensHITACHI CHEMICAL CO LTD·Filed 1993·Granted Sep 12, 1995·18 cites·9 claims
- 0461US4868261AOptical resin materialHITACHI CHEMICAL CO LTD·Filed 1987·Granted Sep 19, 1989·20 cites·3 claims
- 0560US5583191APlastic lensHITACHI CHEMICAL CO LTD·Filed 1995·Granted Dec 10, 1996·21 cites·10 claims
- 0658US4986648ALens and optical disc base plate obtained from copolymer of norbornyl (meth)acrylateHITACHI CHEMICAL CO LTD·Filed 1988·Granted Jan 22, 1991·18 cites·2 claims
- 0758US4351910AExpandable styrene series resin composition and process for production thereofHITACHI CHEMICAL CO LTD·Filed 1981·Granted Sep 28, 1982·13 cites·22 claims
- 0855US8697240B2Photocurable resin composition and cured product of same, resin sheet and production method for same, and display deviceOGAWA YOSHINOBU·Filed 2010·Granted Apr 15, 2014·1 cites·16 claims
- 0954US5559200AResin for plastic lensHITACHI CHEMICAL CO LTD·Filed 1995·Granted Sep 24, 1996·16 cites·7 claims
- 1054US5155190AProcess for producing poly methyl methacrylate/N-substituted maleimide optical resinHITACHI CHEMICAL CO LTD·Filed 1991·Granted Oct 13, 1992·20 cites·4 claims
- 1153US6277938B1Process for the preparation of non-birefringent optical resin and optical elements made by using the resin prepared by the processHITACHI CHEMICAL CO LTD·Filed 1997·Granted Aug 21, 2001·10 cites·6 claims
- 1247US5663264ATransparent resin and plastic lensHITACHI CHEMICAL CO LTD·Filed 1994·Granted Sep 2, 1997·11 cites·10 claims
- 1344US2004115677A1Robot-friendly pcr platesFiled 2002·Application pending·0 cites
- 1437US2004152862A1Optical resins and applications thereofHITACHI CHEMICAL CO LTD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →