Inventor
FUJISAWA ETSUKO
JP4 patents
Patents
4 patentsUS6084577AJul 4, 2000
Pen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movement
RICOH KK168 citations98
US5902968AMay 11, 1999
Pen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movement
RICOH KK367 citations98
US6229102B1May 8, 2001
Pen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movement
RICOH KK86 citations97
US5981884ANov 9, 1999
Pen-shaped handwriting input apparatus using accelerometers and gyroscopes and an associated operational device for determining pen movement
RICOH KK95 citations97