Inventor · disambiguated record
Keiji Azuma
Also filed as: AZUMA KEIJI
5 granted patents·64 citations·filing 1980–2013
80Inventor score
Top patents by PatentIndex Score
5 records- 0165US9013056B2Backup power source device and automobile equipped with samePANASONIC CORP·Filed 2013·Granted Apr 21, 2015·3 cites·5 claims
- 0258US5413838ABoth-side roughened copper foil with protection filmSUMITOMO BAKELITE CO·Filed 1993·Granted May 9, 1995·24 cites·27 claims
- 0354US5320919ACopper foil for inner layer circuit of multi-layered printed circuit board, method of producing the same and multi-layered printed circuit board having the sameSUMITOMO BAKELITE CO·Filed 1991·Granted Jun 14, 1994·19 cites·26 claims
- 0445US5286330AMethod of producing copper-clad laminated boardSUMITOMO BAKELITE CO·Filed 1992·Granted Feb 15, 1994·14 cites·13 claims
- 0535US4299947AProcess for producing quick-curing phenolic resinSUMITOMO BAKELITE CO·Filed 1980·Granted Nov 10, 1981·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →