Inventor · disambiguated record
Kazumasa Sugiyama
Also filed as: SUGIYAMA KAZUMASA
3 granted patents·28 citations·filing 1990–2002
69Inventor score
Top patents by PatentIndex Score
3 records- 0164US6795016B2Jig for heat treatment of workUSUI KOKUSAI SANGYO KK·Filed 2002·Granted Sep 21, 2004·6 cites·20 claims
- 0254US6528931B1Electric light bulb with base held by positioning ring having elastic pieces and weld piecesKOITO MFG CO LTD·Filed 1998·Granted Mar 4, 2003·13 cites·7 claims
- 0337US5200678AMotor driving control apparatusHITACHI LTD·Filed 1990·Granted Apr 6, 1993·9 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →