Inventor · disambiguated record
Hironaga Matsubara
Also filed as: ISHISE KOJIRO · MATSUBARA HIRONAGA
7 granted patents·129 citations·filing 1975–1991
86Inventor score
Top patents by PatentIndex Score
7 records- 0185US4645713AMethod for forming conductive graphite film and film formed therebyAGENCY IND SCIENCE TECHN·Filed 1986·Granted Feb 24, 1987·46 cites·13 claims
- 0270US4795656ACluster ion plating method for producing electrically conductive carbon filmKOZO IIZUKA DIRECTOR GENERAL A·Filed 1988·Granted Jan 3, 1989·27 cites·9 claims
- 0359US5256482ACross-linked polyethylene insulated cablesSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Oct 26, 1993·18 cites·4 claims
- 0455US4092488AConnection or terminal portions for cross-linked polyethylene cablesSUMITOMO ELECTRIC INDUSTRIES·Filed 1975·Granted May 30, 1978·15 cites·6 claims
- 0551US4060659AElectric wires or cables with styrene containing dielectric layerSUMITOMO ELECTRIC INDUSTRIES·Filed 1975·Granted Nov 29, 1977·11 cites·16 claims
- 0648US4191675AFire spreading inhibitor compositionSUMITOMO ELECTRIC INDUSTRIES·Filed 1977·Granted Mar 4, 1980·10 cites·7 claims
- 0730US5124206AElectrically insulated cableSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Jun 23, 1992·2 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Hironaga Matsubara files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →