国家/地区 韩国（6）
IPC部 C（6）
IPC大类 C04（6）
IPC小类 C04B（6）
IPC C04B014/02（3）
发明人
公开年 2023（6）
申请年 2022（6）
专利权人

Inter-floor noise prevention system of house useful for preventing noise generated in upper floor from being transmitted to the lower floor, comprises sound absorbing plate installed on concrete slab, and sound wave vibration blocking plate.

HO S J

Ceramic heater used in semiconductor manufacturing equipment, comprises ceramic substrate comprising aluminum nitride, magnesium oxide/alumina/spinel, calcium oxide and titanium dioxide, and resistance heating element.

KIM Y H, KIM J H, PARK H Y, KIM B S, HWAN K J, SUNG K

Heat-resistant concrete structure used in road icing prevention system, has embedded heater inserted into side of concrete body i.e. formed with heater embedded groove in which heater is seated to have predetermined embedded depth.

TAEHUN K, SAGONGMYUNG, PARK J W, YOO H J, LEE D K, KANG S J, KIMCHANGJOO

Production of carbon composite fiber used for e.g. aviation application, involves preparing spinning dope by dispersing carbon nanomaterial and polyamic acid in super acid, and imidizing preliminary fiber to obtain polyimide composite fiber.

KU B, KIM S Y, KIM S G, YOU N H, KIM J, HWANG J Y, KIM N D, KIM D, KOO B C, KIMRYAN, KIMSEOGYUN, KIM J W, DONG K, KIM D Y

Ultra-fine powder ultra-fast-setting cement concrete composition used for paving road, comprises specified amount of slag cement, Portland cement, fine-grained silica sand, alumina cement, calcium sulfo-aluminate, gypsum, calcium oxide and calcium sulfate.

JUNG S Y

Impregnating and coating highly purified graphite processed product using high temperature curing, comprises pre-treating graphite treated product, impregnating pretreated product into impregnation liquid, and carbonizing cured product.

YICHANGKYU