US20170292000A1 - POLYMER FILM, WATERPROOF SOUND-PERMEABLE MEMBRANE, WATERPROOF SOUND-PERMEABLE MEMBER, ELECTRONIC DEVICE, ELECTRONIC DEVICE CASE, WATERPROOF SOUND TRANSMISSION STRUCTURE, WATERPROOF GAS-PERMEABLE MEMBRANE, WATERPROOF GAS-PERMEABLE MEMBER, WATERPROOF VENTILATION STRUCTURE, SUCTION SHEET, METHOD FOR HOLDING WORKPIECE BY SUCTION ON SUCTION UNIT, METHOD FOR PRODUCING CERAMIC CAPACITOR, OPTICAL FILM, OPTICAL MEMBER, AND COMPOSITION | Patent Bear