Inventor · disambiguated record
Hisashi Watabu
Also filed as: WATABU HISASHI
4 granted patents·14 citations·filing 1994–1999
70Inventor score
Files withSUMITOMO CHEMICAL CO4
Top patents by PatentIndex Score
4 records- 0152US6225492B1Purification method of cyanateSUMITOMO CHEMICAL CO·Filed 1999·Granted May 1, 2001·5 cites·9 claims
- 0240US6603035B1Method for producing high purity cyanateSUMITOMO CHEMICAL CO·Filed 1999·Granted Aug 5, 2003·2 cites·7 claims
- 0338US5563237ACyanate resin composition and copper-clad laminateSUMITOMO CHEMICAL CO·Filed 1994·Granted Oct 8, 1996·3 cites·7 claims
- 0436US6037438ACyanite composition and copper-clad laminate using the compositionSUMITOMO CHEMICAL CO·Filed 1995·Granted Mar 14, 2000·4 cites·1 claims
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