Patents by Inventor Yuri Yakub

Yuri Yakub has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High frequency electronic ballast for high intensity discharge lamps and improved drive method therefor
    Patent number: 7911152
    Abstract: A ballast for operating a high intensity discharge (HID) lamp includes a mechanism which provides electrical power to the HID lamp and a frequency-selecting mechanism which selects a frequency of the electrical power based on an atomic component present in the HID lamp. Preferably, the frequency is selected within a range between two hundred kilohertz and nine hundred kilohertz. Preferably, the frequency is near two hundred kilohertz and the operation enhances radiant efficiency at blue-green wavelengths due to excitation states of: scandium, indium, thallium and rare earth elements. Preferably, when the operation frequency is near seven hundred kilohertz, the operation enhances radiant efficiency at red wavelengths due to excitation states of atomic components selected from alkali metals.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: March 22, 2011
    Assignee: Metrolight Ltd.
    Inventors: Yigal Yanai, Yuri Yakub
  • High Frequency Electronic Ballast For High Intensity Discharge Lamps And Improved Drive Method Therefor
    Publication number: 20080111497
    Abstract: A ballast for operating a high intensity discharge (HID) lamp includes a mechanism which provides electrical power to the HID lamp and a frequency-selecting mechanism which selects a frequency of the electrical power based on an atomic component present in the HID lamp. Preferably, the frequency is selected within a range between two hundred kilohertz and nine hundred kilohertz. Preferably, the frequency is near two hundred kilohertz and the operation enhances radiant efficiency at blue-green wavelengths due to excitation states of: scandium, indium, thallium and rare earth elements. Preferably, when the operation frequency is near seven hundred kilohertz, the operation enhances radiant efficiency at red wavelengths due to excitation states of atomic components selected from alkali metals.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Applicant: METROLIGHT LTD.
    Inventors: Yigal Yanai, Yuri Yakub
  • Metal halide lamp including iron and molybdenum
    Patent number: 5594302
    Abstract: A metal halide lamp for producing high-intensity ultraviolet radiation contains an inert gas and a filler. The filler includes iodine and/or bromine in an overall concentration of from about 0.030-1.110 mg/cm.sup.3, mercury in a concentration of from about 0.318-5.250 mg/cm.sup.3, iron in a concentration of from about 0.005-0.036 mg/cm.sup.3, molybdenum in a concentration of from about 0.006-0.120 mg/cm.sup.3, and optionally, cobalt in a concentration of from about 0.0045-0.036 mg/cm.sup.3. The molybdenum is preferably introduced in the form of metal powder. The iodine and/or bromine is preferably introduced in the form of the corresponding mercury halides.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: January 14, 1997
    Assignee: Lamptech Ltd.
    Inventors: Yuri Yakub, Yitzhak Azran