Samsung Electro-Mechanics Co., Ltd.

Sg Medical Inc.

Sung-Won Min

Burhanettin Koc

Dong-Kyun Lee

Jung-Ho Ryu

Ji Chul Lee

Hyeong Sun Kwon

The present invention relates to a monoclonal antibody or fragment thereof that recognizes and binds specifically to beta 1 integrin as an antigen. The present invention also relates to a pharmaceutical composition for preventing or treating cancer including the monoclonal antibody or fragment thereof. The monoclonal antibody of the present invention is useful in preventing or treating cancer due to its ability to inhibit the proliferation and angiogenesis of cancer cells and effectively induce apoptosis.

Anti-beta 1 integrin humanized antibody, and pharmaceutical composition for treating cancer, comprising same

A piezoelectric vibrator including a pair of first piezoelectric elements having the same rectangular parallelepiped shape and polarized in opposite directions; and a pair of second piezoelectric elements, having the same rectangular parallelepiped shape and respectively attached to a face of the first piezoelectric element, and polarized in the same direction. In the piezoelectric vibrator the first piezoelectric elements are longer than the second piezoelectric elements, and the first piezoelectric elements vibrate in a longitudinal direction and the second piezoelectric elements vibrate in a bending direction when electrical signals are inputted.

Piezoelectric vibrator

A piezoelectric vibrator and an ultrasonic motor having the piezoelectric vibrator. A piezoelectric vibrator has a multilayered piezoelectric actuator, with special internal and surface electrodes making the body vibrate in a longitudinal and bending direction when an electrical signal is inputted. It can be manufactured using conventional multilayer piezoelectric actuator manufacturing techniques, therefore, it has reduced manufacturing time and cost, as it is not necessary to go through two polarization processes, and may simplify and decrease the volume, while improving the vibration performance.

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Seoul, South Korea

Sung-Won Min