Inventor · disambiguated record
Etsuko Fujisawa
Also filed as: FUJISAWA ETSUKO
4 granted patents·716 citations·filing 1997–1998
85Inventor score
Files withRICOH KK4
Top patents by PatentIndex Score
4 records- 0196US5902968APen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movementRICOH KK·Filed 1997·Granted May 11, 1999·367 cites·32 claims
- 0290US6084577APen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movementRICOH KK·Filed 1998·Granted Jul 4, 2000·168 cites·4 claims
- 0386US5981884APen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movementRICOH KK·Filed 1998·Granted Nov 9, 1999·95 cites·4 claims
- 0478US6229102B1Pen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movementRICOH KK·Filed 1998·Granted May 8, 2001·86 cites·38 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →