Inventor · disambiguated record
Keiichiro Kumagai
Also filed as: KUMAGAI KEIICHIRO
4 granted patents·121 citations·filing 1998–2004
80Inventor score
Files withNEC CORP4
Top patents by PatentIndex Score
4 records- 0177US6462803B2Display panel structure with a reinforced sealing memberNEC CORP·Filed 2001·Granted Oct 8, 2002·28 cites·8 claims
- 0276US7238038B2Card holding structure for portable electronic deviceNEC CORP·Filed 2004·Granted Jul 3, 2007·24 cites·15 claims
- 0367US6314274B1Portable radio having retractable keys, wherein the keys retract within the housing upon movement of a retraction accuatorNEC CORP·Filed 1998·Granted Nov 6, 2001·56 cites·21 claims
- 0464US6644822B2Light diffusion unitNEC CORP·Filed 2001·Granted Nov 11, 2003·13 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →