Inventor · disambiguated record
Masayoshi Sugiyama
Also filed as: SUGIYAMA MASAYOSHI
8 granted patents·172 citations·filing 1974–1985
88Inventor score
Top patents by PatentIndex Score
8 records- 0179US3985849APreparation of biaxially oriented polyvinyl alcohol filmKOHJIN CO·Filed 1974·Granted Oct 12, 1976·40 cites·6 claims
- 0271US4612244AMagnetic recording mediumSONY CORP·Filed 1984·Granted Sep 16, 1986·29 cites·7 claims
- 0369US4698195AProcess for preparing biaxially drawn polyamide filmsMITSUBISHI MONSANTO CHEM·Filed 1985·Granted Oct 6, 1987·31 cites·5 claims
- 0465US4061707AProcess and apparatus for heat setting biaxially oriented tubular polyethylene terephthalate filmsMINNESOTA MINING & MFG·Filed 1975·Granted Dec 6, 1977·26 cites·5 claims
- 0557US4298881ASemiconductor device with double moat and double channel stoppersHITACHI LTD·Filed 1980·Granted Nov 3, 1981·21 cites·7 claims
- 0647US4656089AMagnetic recording mediumSONY CORP·Filed 1985·Granted Apr 7, 1987·10 cites·6 claims
- 0744US4634840AMethod of heating thermoplastic resin sheet or filmMITSUBISHI MONSANTO CHEM·Filed 1985·Granted Jan 6, 1987·12 cites·7 claims
- 0829US3934331AMethod of manufacturing semiconductor devicesHITACHI LTD·Filed 1975·Granted Jan 27, 1976·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →