Inventor · disambiguated record

Hiroyuki Umida

Also filed as: UMIDA HIROYUKI

2 granted patents·46 citations·filing 1992–2001

62Inventor score

Technology areasC07C C07D

Files withSUMITOMO CHEMICAL CO2

Top patents by PatentIndex Score

2 records

0188US5298667AProcess for producing phenol and methyl ethyl ketoneSUMITOMO CHEMICAL CO·Filed 1992·Granted Mar 29, 1994·38 cites·9 claims
0274US6433166B2Process for producing ε-caprolactamSUMITOMO CHEMICAL CO·Filed 2001·Granted Aug 13, 2002·8 cites·32 claims

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