Man Sung Kim

US Patent:

55307701, Jun 25, 1996

Filed:

Apr 11, 1994

Appl. No.:

8/225838

Inventors:

Man H. Kim - Torrance CA

International Classification:

H03F 2100
H03G 500

US Classification:

381120

Abstract:

A multiple output transformer network for a high-fidelity sound reproducing system which includes a high-frequency speaker and a low-frequency speaker, first and second output transformers, a high-frequency bandpass filter coupling the secondary of the first output transformer to the high-frequency speaker, and a low-frequency bandpass filter coupling the secondary of the second transformer to the second speaker, all mounted in a remote speaker unit. The primary windings of the transformers are connected to the output amplifier of the sound reproducing equipment by first and second extension leads. The output amplifier includes first and second triodes series connected across a source of unidirectional potential, and first and second capacitors coupling the extension leads to the common connection of the triodes.

US Patent:

55984800, Jan 28, 1997

Filed:

Apr 27, 1995

Appl. No.:

8/429585

Inventors:

Man H. Kim - Torrance CA

International Classification:

H03G 500

US Classification:

381 99

Abstract:

A multiple output transformer network for a high-fidelity sound reproducing system which includes a high-frequency speaker and a low-frequency speaker, first and second audio output autotransformers, a high-frequency bandpass filter coupling the first autotransformer to the high-frequency speaker, and a low-frequency bandpass filter coupling the second autotransformer to the second speaker, all of the foregoing components being mounted in a remote speaker unit. The winding of the first autotransformer is connected to the output amplifier of the sound reproducing equipment by a first extension lead, and to ground; and the winding of the second autotransformer is connected to the output amplifier of the sound reproducing equipment by a second extension lead and to ground; and the high-frequency and low-frequency bandpass filters are respectively connected to center taps on the windings of the first and second autotransformers.

US Patent:

20140293591, Oct 2, 2014

Filed:

Apr 1, 2013

Appl. No.:

13/854851

Inventors:

Ji Yong KIM - Hawaiian Gardens CA, US
Man Duck Kim - Hawaiian Gardens CA, US
Chung Han Kim - Corona CA, US

International Classification:

F21V 21/32
F21V 21/096

US Classification:

362183, 362191

Abstract:

A flexible solar light includes a lamp portion, a main body portion, and a goose neck portion. The goose neck portion connects the lamp portion and the main body portion, which is flexible and configured to be bent in a shape and maintains the bent shape. The lamp portion and the main body portion are configured to form a portable flashlight, a light stand, a wall lamp, or a ceiling lamp by engaging or separating each other.