Other

Samsung Electronics Co., Ltd.

Dsrv Labs Co., Ltd.

Hyung Kyu Choi

Jae Hoon Kim

Young Jin Noh

Sung Moon Park

Jong Kwang Kim

Kyeong Seok Jeong

Ji Yun Kim

Jeong Ho Jeon

Zhong C Xin

Hyug Bin Kwon

Jun Soo Lee

Yoshihisa Hirano

Seung Kyu Lim

A system and method for preventing hacking of blockchain is proposed. The system includes a cryptocurrency owner configured to own a cryptocurrency wallet storing a cryptocurrency, a public key, and a private key, and capable of setting monitoring-subjected data and monitoring-excluded data, a hacking countermeasure system configured to check status of the cryptocurrency wallet by being connected to the cryptocurrency owner to receive the cryptocurrency and the public key, invalidate a hacking transaction when the hacking transaction matching the monitoring-subjected data is received, and allow the cryptocurrency to be traded by opening the cryptocurrency wallet with the private key and process transaction details into a block file when a monitoring-excluded transaction matching the monitoring-excluded data is received, and a blockchain network configured to receive the block file from the hacking countermeasure system and duplicate the block file into a plurality of block files to distribute and store each block file.

System and method for preventing suspicious transactions in distributed ledger

A plasma processing apparatus may include a lower electrode supporting a wafer; a focus ring surrounding an edge of the lower electrode and having a ring shape; and an edge ring disposed in a position lower than a position of the focus ring. The focus ring may include a lower region and an upper region disposed on the lower region, and the upper region increases in electrical conductivity as the upper region is closer to the lower region.

Plasma processing apparatus

The present invention relates to an ointment composition for prophylaxis and treatment of premature ejaculation in a male patient and more particularly to a composition for applying to the glans penis, which contains the alcohol and/or aqueous extracts of ginseng radix, angelicae gigantis radix, broomrape, cassiae cortex, asiasari radix and bufonis venenum as the essential galenic components and, if necessary, one or more additional components selected from the extracts of xanthoxyli fructus, cnidium fructus, caryophylli flos and moschus.

Pharmaceutical composition for prophylaxis and treatment of premature

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Seoul, South Korea

Hyung Kyu Choi