Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2008/035713
Kind Code:
A1
Abstract:
A toothbrush in which the bristles are less likely to have mechanical damage such
as cracks and bends and that clearly indicates the time of toothbrush replacement
by the degree of spread of the bristles. The toothbrush (10) has tufts (15) inserted
into a tuft insertion surface, and the tufts (15) are each formed by binding bristles
(1) made of a polytrimethylene terephthalate resin. Recesses (2) are formed
in the surface of a bristle (1). The minimum cross-sectional area (S1) of the bristle
(1) at the position where a recess (2) is formed is 40 to 80% of the maximum cross-sectional
area (S2) of the bristle (1).
Inventors:
HAKAMATA YUSUKE (JP)
KOBAYASHI TOSHIAKI (JP)
KATO TAKAO (JP)
KOBAYASHI TOSHIAKI (JP)
KATO TAKAO (JP)
Application Number:
PCT/JP2007/068190
Publication Date:
March 27, 2008
Filing Date:
September 19, 2007
Export Citation:
Assignee:
LION CORP (JP)
HAKAMATA YUSUKE (JP)
KOBAYASHI TOSHIAKI (JP)
KATO TAKAO (JP)
HAKAMATA YUSUKE (JP)
KOBAYASHI TOSHIAKI (JP)
KATO TAKAO (JP)
International Classes:
A46D1/00
Foreign References:
| JPS61177027U | 1986-11-05 | |||
| JPS6027726U | 1985-02-25 | |||
| JPH0372724U | 1991-07-23 | |||
| JPH02251670A | 1990-10-09 | |||
| JP2006122275A | 2006-05-18 | |||
| JP2001178542A | 2001-07-03 |
Attorney, Agent or Firm:
SHIGA, Masatake et al. (Yaesu Chuo-k, Tokyo 53, JP)
Download PDF:
Previous Patent: FIBER FOR ARTIFICIAL HAIR IMPROVED IN SETTABILITY AND HAIR ACCESSORIES MADE BY USING THE FIBER
Next Patent: GAS REMOVAL DEVICE
Next Patent: GAS REMOVAL DEVICE