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US 6,088,869 AGranted
Toothbrush
AssigneeKao Corporation
InventorsTakayuki Kaneda, Mitsuyuki Kubo, Toshiro Shintani
Life of this patent
Estimating the term…
Abstract
A toothbrush comprises a plurality of tufts each including a plurality of bristles embedded respectively in a plurality of bored holes formed in a head portion. The tufts each comprise a plurality of first bristles tapered towards distal ends thereof, and a plurality of second bristles likewise tapered towards the distal ends and each having a ball-like portion on each of the distal ends thereof. The distal ends of the first bristles are located in a higher position than the distal ends of the second bristles.
Claims7
A toothbrush comprising:
- a plurality of tufts each comprising a plurality of bristles embedded respectively in a plurality of bored holes formed in a head portion of the toothbrush;
- wherein each of said tufts comprises a plurality of first bristles tapered towards distal ends of the first bristles, and a plurality of second bristles tapered towards distal ends of said second bristles, each of said second bristles having a ball-like portion on each of the distal ends of the second bristles, the distal ends of said first bristles being located at a higher position than the distal ends of said second bristles.
Dependencies are inferred from the claim text.