Inventor · disambiguated record
Keiji Kumatani
Also filed as: KUMATANI KEIJI
2 granted patents·1 pending application·19 citations·filing 2000–2005
60Inventor score
Top patents by PatentIndex Score
3 records- 0172US7756181B2Semiconductor laser device, optical transmission device, optical transmission system, electronic device, control device, connector, communication device, and optical transmission method and data transmission and reception methodSHARP KK·Filed 2005·Granted Jul 13, 2010·6 cites·10 claims
- 0265US6888864B1Semiconductor laser device, optical transmission device, optical transmission system, electronic device, control device, connector, communication device, and optical transmission method and data transmission and reception methodSHARP KK·Filed 2000·Granted May 3, 2005·13 cites·19 claims
- 0340US2007015411A1Service utilization termianl for providing users with functions provided on networkHIRATA MASAFUMI·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →