(19)
(11) EP 2 522 460 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.11.2014 Bulletin 2014/45

(43) Date of publication A2:
14.11.2012 Bulletin 2012/46

(21) Application number: 12164808.3

(22) Date of filing: 19.04.2012
(51) International Patent Classification (IPC): 
B08B 7/02(2006.01)
B24C 7/00(2006.01)
 B24C 11/00(2006.01)
B24C 9/00(2006.01)
(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

(30) Priority: 11.05.2011 JP 2011106438
19.01.2012 JP 2012009262

(71) Applicant: Ricoh Company Ltd.
Tokyo 143-8555 (JP)

(72) Inventors:
  • Okamoto, Yoichi
    Tokyo 143-8555 (JP)
  • Fuchigami, Akihiro
    Tokyo 143-8555 (JP)
  • Tsukahara, Kohji
    Tokyo 143-8555 (JP)
  • Murata, Shozo
    Tokyo 143-8555 (JP)
  • Taneda, Yusuke
    Tokyo 143-8555 (JP)

(74) Representative: Leeming, John Gerard 
J A Kemp 14 South Square Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) Cleaning media, method of manufacturing cleaning media, and dry-type cleaning device


(57) Cleaning media (PC) having a thin shape and used in a dry-type cleaning device for cleaning a cleaning target by being blown by an air flow and collided with the cleaning target includes a fracture induction part (LY) inducing fracture and being formed so that, upon being fractured along the fracture induction part into pieces, at least one acute-angle part is formed in at least one of the pieces.







Search report









Search report