Title:
ION INJECTION TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2006/087927
Kind Code:
A1
Abstract:
An ion injection toothbrush exhibiting significant injection effect of fluorine ions on the surface of the teeth. The toothbrush comprises a handle provided with a grip electrode touching the hand of a user, and a brush head having an electrically conductive portion. A power supply supplying a current is provided between the grip electrode and the brush head and charges them with reverse polarities. The power supply is arranged to generate a pulse current. Since the teeth of the user are charged periodically and unwanted polarization in the teeth is reduced, quantity of fluorine ions being introduced onto the surface of the teeth is increased and prevention effect of caries is enhanced.
Inventors:
Sato, Yasuhiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kunita, Tomohiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Okamoto, Toyokatsu c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kishigami, Yasuhiro c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Haga, Makoto c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Kunita, Tomohiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Okamoto, Toyokatsu c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kishigami, Yasuhiro c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Haga, Makoto c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Application Number:
PCT/JP2006/301890
Publication Date:
August 24, 2006
Filing Date:
February 03, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS, LTD. (1048, Oaza-Kadoma Kadoma-sh, Osaka 86, 57186, JP)
TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION (3 Kagurazaka 1-chome, Shinjuku-ku Tokyo, 01, 16286, JP)
Sato, Yasuhiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kunita, Tomohiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Okamoto, Toyokatsu c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kishigami, Yasuhiro c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Haga, Makoto c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION (3 Kagurazaka 1-chome, Shinjuku-ku Tokyo, 01, 16286, JP)
Sato, Yasuhiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kunita, Tomohiro c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Okamoto, Toyokatsu c/o Matsushita Electric Works Ltd. (1048, Oaza-Kadoma, Kadoma-sh, Osaka 86, 57186, JP)
Kishigami, Yasuhiro c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
Haga, Makoto c/o Tokyo University of Science Educational Foundation Administrative Organization (3 Kagurazaka 1-chome Shinjuku-k, Tokyo 01, 16286, JP)
International Classes:
A46B15/00; A61C17/00; A61C19/06; A61N1/32; A46B15/00; A61C17/00; A61C19/00; A61N1/32
Attorney, Agent or Firm:
Nishikawa, Yoshikiyo (Hokuto Patent Attorneys Office, Umeda-Daiichiseimei Bldg. 5F 12-17, Umeda
1-chome, Kita-k, Osaka-shi Osaka 01, 53000, JP)
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