Inventor · disambiguated record
Seiichi Maruyama
Also filed as: MARUYAMA SEIICHI
7 granted patents·21 citations·filing 1993–2019
79Inventor score
Top patents by PatentIndex Score
7 records- 0193US9545813B2Ball penMITSUBISHI PENCIL CO·Filed 2013·Granted Jan 17, 2017·9 cites·8 claims
- 0285US11084316B2ApplicatorMITSUBISHI PENCIL CO·Filed 2018·Granted Aug 10, 2021·3 cites·5 claims
- 0380US9162515B2Writing implement refill and writing implementMITSUBISHI PENCIL CO·Filed 2013·Granted Oct 20, 2015·3 cites·6 claims
- 0479US10299561B2Makeup toolMITSUBISHI PENCIL CO·Filed 2016·Granted May 28, 2019·2 cites·4 claims
- 0568US8328704B2Roller, apparatus for molding roller, mold for forming roller, method for producing roller, and recording apparatusKOTAKA TOSHIKAZU·Filed 2007·Granted Dec 11, 2012·3 cites·2 claims
- 0654US11654711B2Writing tool provided with refillMITSUBISHI PENCIL CO·Filed 2019·Granted May 23, 2023·0 cites·1 claims
- 0726US5464951ATablet unit comprising a reduced number of circuit elementsMITSUMI ELECTRIC CO LTD·Filed 1993·Granted Nov 7, 1995·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →