Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8131153 | Power line communication system using hybrid-fiber coaxial and communication device used in the system A communication equipment which is utilized in a power line communication (PLC) system utilizing a hybrid fiber coax (HFC) which includes a PLC optical network unit, a PLC trunk bridge amplifier, a PLC distribution amplifier, and a PLC coupling device. In this insta... | 03/06/2012 |
| 7954450 | Optical fiber coating apparatus for preventing generation of bubble in coating layer of optical fiber and method of coating optical fiber using the same Disclosed is an optical fiber coating apparatus for preventing generation of bubble in a coating layer of an optical fiber when the optical fiber is coated, which includes a coating unit for allowing an optical fiber to pass through and forming a coating layer on th... | 06/07/2011 |
| 7903974 | Optical transmission system for transmitting signal of E-band with other bands Disclosed is an optical transmission system capable of transmitting optical signals of E-band and other bands through one optical fiber. The system includes a first thin film filter for receiving optical signals of E-band and other bands at both sides thereof respec... | 03/08/2011 |
| 7656289 | Apparatus for monitoring an inside of a manhole An apparatus for monitoring an inside of a manhole in which the inside of the manhole is monitored using a simple communication and power supply unit is closed. The apparatus comprises power cables installed inside a manhole, a connecting unit connecting the corresp... | 02/02/2010 |
| 7619167 | Fiber reinforced plastic wire for strength member of overhead transmission cable, method for manufacturing the same, and overhead transmission cable using the same Disclosed is a fiber reinforced plastic wire used as the overhead transmission cable. The fiber reinforced plastic wire for a strength member of an overhead transmission cable according to the present invention includes a wire having a predetermined diameter and com... | 11/17/2009 |
| 7454109 | Optical fiber with zero dispersion wavelength shifted to short wavelength region, and optical transmission line and optical transmission system using the same Disclosed is an optical fiber suitable for WDM system, particularly whose zero-dispersion wavelength is positioned in a short wavelength band less than 1,300 mm. In the optical fiber, dispersion has a positive value, not zero, at 1,310 nm, and a dispersion slope is ... | 11/18/2008 |
| 7453043 | Composition for manufacturing insulation materials of electrical wire and electrical wire manufactured using the same A composition for manufacturing insulation materials of an electrical wire having a multilayer structure, which is used for manufacturing a first insulation coating layer made of a composition including a predetermined base resin, an antioxidant and a co-crosslinkin... | 11/18/2008 |
| 7450805 | Optical fiber unit for air blown installation and manufacturing method thereof An optical fiber unit for air blown installation includes at least one optical fiber having a core layer and a clad layer, a protective layer coated on the surface of the optical fiber; and protrusions made of polymer resin and formed on the outer circumference of t... | 11/11/2008 |
| 7441417 | Outside vapor deposition apparatus for making optical fiber preform An Outside Vapor Deposition (OVD) apparatus for making an optical fiber preform with uniform deposition of silica particles through uniform heating to the overall length of the preform includes a mandrel having a predetermined length and driven to rotate and a burne... | 10/28/2008 |
| 7414202 | Insulated electric wire with partial discharge resistance and composition for manufacturing the same Disclosed are an insulated electric wire with partial discharge resistance and a composition for manufacturing the same. The insulated electric wire with partial discharge resistance according to the present invention includes an insulating base resin constituting a... | 08/19/2008 |
| 7412140 | Apparatus for acquiring image information using array of image acquisition units having optical device The present invention relates to an apparatus for acquiring image information using array of image acquisition units, each having an optical device. The apparatus for acquiring image information includes a geometric array of image acquisition units, each having opti... | 08/12/2008 |
| 7407995 | Synthesis of MDH-polymer hybrid particles Disclosed is the preparation of organic/inorganic hybrid particles comprising magnesium hydroxide cores and tethered copolymer chains whose composition can be selected to allow dispersion in targeted plastic materials, thereby providing improved mechanical, electric... | 08/05/2008 |
| 7402037 | Mold clamping unit The mold clamping unit comprises a column mounted in a transfer means and moving in forward and backward direction; a mold clamping piston in which clamping operation and clamping-releasing operation are performed; plurality of column teeth disposed on a surface of ... | 07/22/2008 |
| 7399926 | Communication cable having outside spacer and method for producing the same A communication cable includes at least one twisted wire pair formed by twisting a plurality of insulation-coated wires; a sheath surrounding the twisted wire pair; and a protrusion formed on an outer surface of the sheath. This communication cable may prevent alien... | 07/15/2008 |
| 7391946 | Low attenuation optical fiber and its producing method in MCVD Disclosed is a low-attenuation single-mode optical fiber having a photoconductive core and a clad, which shows very low OH concentration in MFD (Mode Field Diameter) region. The optical fiber includes a core positioned at its center for photoconduction, and a dehydr... | 06/24/2008 |
| 7364134 | Optical fiber unit installation apparatus including a unit for preventing backward flowing of fluid An optical fiber unit installation apparatus having a unit for preventing a fluid from flowing backward toward entrance of the optical unit to prevent fluid leakage while the optical fiber unit is installed using air pressure is disclosed. The apparatus includes an ... | 04/29/2008 |
| 7359600 | Loose tube optical cable having straight aggregation structure Disclosed is a loose tube optical cable having an unstranded structure, which includes a tensile strength member longitudinally elongated and having a central axis deviated from the center of the optical cable, a loose tube optical fiber unit longitudinally elongate... | 04/15/2008 |
| 7340141 | Optical fiber, and optical transmission line and optical transmission system using the same Disclosed is an optical fiber suitable for an optical transmission line used in WDM system, particularly a single-mode optical fiber whose zero-dispersion wavelength is positioned in a short wavelength band (less than 1,370 mm) so as to enable high-speed mass-storag... | 03/04/2008 |
| 7322220 | Apparatus for manufacturing trapezoidal wire using two-set shaping rollers An apparatus for manufacturing a trapezoidal wire using two-set shaping rollers has a body rotating about a central axis at a predetermined speed, a plurality of first shaping roller sets installed along an outer circumference of the body, each first shaping roller ... | 01/29/2008 |
| 7289710 | Optical fiber suitable for high-speed large-scale wdm system, optical transmission line and optical transmission system using the same Disclosed is a single-mode optical fiber suitable for and optical transmission line used in WDM (Wavelength Division Multiplexing) system, which has low dispersion slope, sufficient dispersion value and large effective section area over S-, C- and L-band (1460˜1625... | 10/30/2007 |
| 7227641 | Method and apparatus for measuring a pitch of stranded cable Disclosed is a method for measuring a pitch of a stranded cable which includes the steps of (A) manufacturing a stranded cable by stranding at least two wires; (B) irradiating a parallel ray on one side of the stranded cable moving at a regular velocity, and receivi... | 06/05/2007 |
| 7141751 | Breaker for providing successive trip mechanism based on PTC current-limiting device Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in par... | 11/28/2006 |
