简单同族:
CN100557800C | CN101789425A | CN101789425B | CN1427479A | JP2003152185A | JP2003152185A5 | JP4202012B2 | KR100950031B1 | KR100950036B1 | KR1020030039309A | KR1020090096381A | TW200408132A | TWI260784B | US20030089910A1 | US20100073352A1 | US7629611 | US9117913