Electric toothbrush
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United States of America Patent
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N/A
Issued Date -
Jan 4, 2007
app pub date -
Jun 17, 2004
filing date -
Jun 20, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object is to provide an electric toothbrush superior in plaque removal, producible at low costs, and utilized without damaging gum even by a patient with gingivitis. In the electric toothbrush (10) making brushing possible by linearly moving a tufted portion (31), the product of the distance (mm) of movement of the tufted portion (31) and the frequency (times) of back-and-forth motion per minute is set in the range of 3000-9000. Further, the distance ((x) mm) of movement of the tufted portion (32) and the frequency ((y) times) of back-and-forth motion per minute are set in a range which satisfies the following formula: y=ax+b, where a=-3000, 10000.ltoreq.b.ltoreq.12500, x>0.
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