Inventor · disambiguated record
Katsuhiko Hirashima
Also filed as: HIRASHIMA KATSUHIKO
7 granted patents·3 pending applications·92 citations·filing 2000–2016
85Inventor score
Top patents by PatentIndex Score
10 records- 0183US6728248B1Optical line terminalFUJITSU LTD·Filed 2000·Granted Apr 27, 2004·29 cites·13 claims
- 0275US6611928B1Homo-code continuity proof testing deviceFUJITSU LTD·Filed 2000·Granted Aug 26, 2003·24 cites·23 claims
- 0371US6848053B1Optical network unit and optical line terminalFUJITSU LTD·Filed 2000·Granted Jan 25, 2005·17 cites·10 claims
- 0467US9871624B2Transmission apparatus and retry methodFUJITSU LTD·Filed 2016·Granted Jan 16, 2018·2 cites·10 claims
- 0563US7418009B2Method of transferring frames of variable length for a passive optical network that improves network efficiency and simplifies child apparatusFUJITSU LTD·Filed 2002·Granted Aug 26, 2008·7 cites·16 claims
- 0659US7313144B2Frame transmission deviceFUJITSU LTD·Filed 2004·Granted Dec 25, 2007·11 cites·13 claims
- 0753US7415111B2Optical network unit and optical line terminalFUJITSU LTD·Filed 2004·Granted Aug 19, 2008·2 cites·17 claims
- 0842US2009213734A1Packet transmission deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 0940US2005058071A1Optical access systemFiled 2003·Application pending·0 cites
- 1038US2006067691A1Communication systemHIRANO KENICHI·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →