Title:
TOOTH BRUSH
Document Type and Number:
WIPO Patent Application WO/2006/018927
Kind Code:
A1
Abstract:
A high quality tooth brush softly and comfortably touching to teeth and gums, capable of providing high brushing feeling and massaging feeling and excellent dental plaque removing force, suitable for curing or preventing serious or slight periodontal disease and gingivitis, enabling the extraction of bristles since flocking strength is high and less causing cracking and whitening at a head part, wherein bristle bundles (5) formed by binding synthetic resin bristles (4) are implanted in implantation holes (3) in the head part (1). The cross sectional shape of the implantation hole (3) is formed in a circular hole with a diameter of 1.8 mm or longer or a hole with a size equivalent to the circular hole. The cross sectional shape of the synthetic resin bristles (4) implanted in the implantation holes (3) is formed in a circular shape with a diameter of 0.127 mm (5 mil) or less or a shape with a size equivalent to the circular shape. Also, the ratio (h/d) of the depth (h) of the implantation hole to the implantation hole (3) is set within the range of 1.7 to 2.5. In addition, the shortest distance between the implantation holes adjacent to each other is set to 0.1 to 0.4 mm.
Inventors:
Nakayama, Sachiko c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kobayashi, Hiroyuki c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kato, Takao c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kobayashi, Hiroyuki c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kato, Takao c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Application Number:
PCT/JP2005/011141
Publication Date:
February 23, 2006
Filing Date:
June 17, 2005
Export Citation:
Assignee:
LION CORPORATION (3-7 Honjo 1-chome, Sumida-ku Tokyo, 44, 13086, JP)
Nakayama, Sachiko c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kobayashi, Hiroyuki c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kato, Takao c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Nakayama, Sachiko c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kobayashi, Hiroyuki c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
Kato, Takao c/o LION CORPORATION (3-7 Honjo 1-chome, Sumida-k, Tokyo 44, 13086, JP)
International Classes:
A46B9/04; A61C17/00; (IPC1-7): A46B9/04; A61C17/00
Attorney, Agent or Firm:
Fujii, Koichi (4th Floor, Kawamura Building 4-4, Toranomon 1-chome, Minato-k, Tokyo 01, 10500, JP)
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