Inventor · disambiguated record
Ryozo Kawai
Also filed as: KAWAI RYOZO
7 granted patents·2 pending applications·269 citations·filing 1988–2007
87Inventor score
Files withMITSUBISHI GAS CHEMICAL CO4MGC FILSHEET CO LTD2FUJI KASEI CO LTD1KAWAI RYOZO1MGC FILSEET CO LTD1
Top patents by PatentIndex Score
9 records- 0191US5051309AAnti-dazzling polycarbonate polarizing plateMITSUBISHI GAS CHEMICAL CO·Filed 1990·Granted Sep 24, 1991·113 cites·7 claims
- 0285US5811032ABiodegradable water-soluble polymerMITSUBISHI GAS CHEMICAL CO·Filed 1996·Granted Sep 22, 1998·51 cites·14 claims
- 0383US7350917B2Light control plastic lens, coated sheet-like light control element for the lens production, and a production method for light control plastic lensMGC FILSEET CO LTD·Filed 2005·Granted Apr 1, 2008·31 cites·14 claims
- 0482US4992218AProcess for producing a polarizing filmMITSUBISHI GAS CHEMICAL CO·Filed 1988·Granted Feb 12, 1991·48 cites·10 claims
- 0565US5654380AAliphatic polyester carbonate and process for producing the sameMITSUBISHI GAS CHEMICAL CO·Filed 1995·Granted Aug 5, 1997·21 cites·8 claims
- 0656US7872795B2Laminated body for optical purposes that includes a melanin-containing layer and an optical product which includes the laminateMGC FILSHEET CO LTD·Filed 2007·Granted Jan 18, 2011·1 cites·15 claims
- 0753US7198830B2Polycarbonate resin composition and polarizing sheet used the sameFUJI KASEI CO LTD·Filed 2004·Granted Apr 3, 2007·4 cites·11 claims
- 0850US2008094704A1Non-glaring laminated body, a coated non-glaring laminated body, a non-glaring material, and a method for producing the non-glaring materialMGC FILSHEET CO LTD·Filed 2007·Application pending·0 cites
- 0935US2009317616A1Process for producing melanin, melanin produced by the process, functional film containing the melanin, and process for producing the sameKAWAI RYOZO·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →