Dong Woohn
Dong Woohn Kim, Gyunggi-Do KR
Patent application number | Description | Published |
---|---|---|
20130082549 | SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor including: a stator including a plurality of magnets and stator salient poles disposed between the plurality of magnets; and a rotor including salient poles formed at an inner diameter thereof so as to face the stator salient poles, wherein three stator salient poles are disposed between the magnets, the number of stator salient poles is 6*N and the number of salient poles of the rotor facing the stator salient poles is 3*N, where N indicates a natural number of 2 or more. | 04-04-2013 |
20130093269 | SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor in which a shaft of the motor and a shaft of a load are aligned with each other so that maximum torques of the motor and the shaft coincide with each other. | 04-18-2013 |
Dong Woohn Kim, Gyeonggi-Do KR
Patent application number | Description | Published |
---|---|---|
20150194593 | PIEZOELECTRIC VIBRATION MODULE - Embodiments of the invention provide a piezoelectric vibration module, including a vibration plate mounted with a piezoelectric element, which generates a vibration force in a vertical direction by being repeatedly expanded and contracted depending on external power applied thereto, and a lower case coupled with both ends of the vibration plate so as to be spaced apart from the vibration plate. The piezoelectric vibration module further includes a bar-shaped weight body increasing the vibration force of the piezoelectric element, and an elastic member interposed between the vibration plate and the weight body. | 07-09-2015 |
Dong Woohn Kim, Suwon-Si KR
Patent application number | Description | Published |
---|---|---|
20150214466 | VIBRATION GENERATING APPARATUS FOR PORTABLE TERMINAL - The vibration generating apparatus includes: a diaphragm formed of a metal; a piezoelectric plate mounted on at least one surface of the diaphragm; a fixed member coupled to the diaphragm along an outer circumference of the diaphragm to fix the diaphragm; and wherein the fixed member is formed of a material having a Young's modulus lower than that of steel. | 07-30-2015 |