Inventor · disambiguated record
Masaaki Tobioka
Also filed as: TOBIOKA MASAAKI
16 granted patents·580 citations·filing 1977–1994
95Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES16
Top patents by PatentIndex Score
16 records- 0198US4277283ASintered hard metal and the method for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1978·Granted Jul 7, 1981·108 cites·12 claims
- 0294US4900628AGaseous phase synthesized diamond and method for synthesizing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Feb 13, 1990·58 cites·3 claims
- 0394US4746563AMultilayer coated cemented carbidesSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted May 24, 1988·96 cites·6 claims
- 0493US4150195ASurface-coated cemented carbide article and a process for the production thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 1977·Granted Apr 17, 1979·57 cites·7 claims
- 0589US4169913ACoated tool steel and machining tool formed therefromSUMITOMO ELECTRIC INDUSTRIES·Filed 1978·Granted Oct 2, 1979·41 cites·5 claims
- 0686US5252288AMethod for producing an elongated sintered articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Oct 12, 1993·35 cites·36 claims
- 0785US4859490AMethod for synthesizing diamondSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Aug 22, 1989·34 cites·6 claims
- 0880US4769070AHigh toughness cermet and a process for the production of the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Sep 6, 1988·35 cites·15 claims
- 0977US4279651ASintered hard metal and the method for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1978·Granted Jul 21, 1981·19 cites·9 claims
- 1069US4675206AProcess for the production of a surface-coated articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Jun 23, 1987·25 cites·5 claims
- 1161US5266389ASurface-coated hard material for cutting tools or wear resistance toolsSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Nov 30, 1993·19 cites·1 claims
- 1254US5006289AMethod for producing an elongated sintered articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Apr 9, 1991·13 cites·30 claims
- 1350US5480601AMethod for producing an elongated sintered articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Jan 2, 1996·12 cites·29 claims
- 1448US5114641AMethod for producing an elongated sintered articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted May 19, 1992·11 cites·28 claims
- 1548US5112643AGaseous phase synthesized diamond and method for synthesizing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted May 12, 1992·10 cites·6 claims
- 1639US5116694ACoated cemented carbidesSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted May 26, 1992·7 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →