Inventor · disambiguated record
Masazumi Takaoka
Also filed as: TAKAOKA MASAZUMI
4 granted patents·2 citations·filing 1997–2004
60Inventor score
Files withMITSUI CHEMICALS INC4
Top patents by PatentIndex Score
4 records- 0152US6828461B2Process for producing 1,5-diaminonaphthaleneMITSUI CHEMICALS INC·Filed 2004·Granted Dec 7, 2004·1 cites·6 claims
- 0250US6359180B1Production method of 4,6-diaminoresorcinMITSUI CHEMICALS INC·Filed 2000·Granted Mar 19, 2002·1 cites·4 claims
- 0340US6974881B2Production method of 4,6-diaminoresorcinMITSUI CHEMICALS INC·Filed 2002·Granted Dec 13, 2005·0 cites·4 claims
- 0429US5872260AHigh purity 1,3-dialkyl-2-imidazolidinone and preparation process of sameMITSUI CHEMICALS INC·Filed 1997·Granted Feb 16, 1999·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →