Inventor · disambiguated record
Masaaki Fukami
Also filed as: FUKAMI MASAAKI
5 granted patents·107 citations·filing 1993–2002
82Inventor score
Technology areasB43K
Top patents by PatentIndex Score
5 records- 0181US5342136AWriting instrument with exchangeable ink refillALLCO KK·Filed 1993·Granted Aug 30, 1994·54 cites·5 claims
- 0269USD439611SDouble writing instrumentFiled 2000·Granted Mar 27, 2001·18 cites·1 claims
- 0367USD403706SWriting penWORLD ENG CORP·Filed 1998·Granted Jan 5, 1999·17 cites·1 claims
- 0465US6659671B1Ink introducing tube and writing instrument incorporated with the sameTSUKASA FELT SHOJI KABUSHIKI K·Filed 2002·Granted Dec 9, 2003·11 cites·5 claims
- 0541US6629798B1PenFiled 1999·Granted Oct 7, 2003·7 cites·20 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →