(19)
(11) EP 3 620 132 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
19.08.2020 Bulletin 2020/34

(43) Date of publication:
11.03.2020 Bulletin 2020/11

(21) Application number: 19808670.4

(22) Date of filing: 28.05.2019
(51) International Patent Classification (IPC): 
A61C 17/22(2006.01)
 A61C 17/34(2006.01)
(86) International application number:
PCT/JP2019/021043
(87) International publication number:
WO 2019/230704 (05.12.2019 Gazette 2019/49)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 01.06.2018 JP 2018105865

(71) Applicants:
  • Sanfat Electric Manufacturing Company Limited
    Kowloon, Hong Kong (CN)
  • Shiken Co., Ltd.
    Osaka-shi Osaka 543-0045 (JP)

(72) Inventors:
  • IKEJIRI, Takahiro
    Osaka-shi Osaka 5430045 (JP)
  • ENDO, Yoshikazu
    Osaka-shi Osaka 5430045 (JP)
  • TERAMOTO, Masanori
    Tokyo 1118682 (JP)
  • KASAHARA, Eiji
    Tokyo 1118682 (JP)
  • UMEDA, Yu
    Tokyo 1118682 (JP)
  • MORITA, Keitoku
    523710 (CN)
  • ISHITA, Toshiya
    523710 (CN)
  • LI, Huiqun
    523710 (CN)
  • BI, Huadong
    523710 (CN)
  • HE, Feigang
    523710 (CN)

(74) Representative: Ter Meer Steinmeister & Partner 
Patentanwälte mbB Artur-Ladebeck-Strasse 51
33617 Bielefeld
33617 Bielefeld (DE)


(56) References cited: : 
   
       


    (54) ELECTRIC TOOTHBRUSH


    (57) An electric toothbrush comprises: a main body part (12) provided with a first electrode (11); a second electrode (17) provided at an end in the longitudinal direction of the main body part and connected to one end of the main body part; a brush part (16) including a brush base (15) in which brush bristles (14) are embedded, and connected to the second electrode; a power supply part (30); a current detecting part (36) for detecting a weak current generated by the user holding the brush part in the oral cavity of the user while touching the first electrode; and a vibration generating unit (38). The vibration generating unit is driven when the weak current is detected by the current detecting part.