1
Shankar M V
Gopi Chandran Ramachandran, Mukunda Srinivas Adyam, Shankar Madras Venugopal, Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo, Venkatesan Manivannan, William Winder Beers: Phosphors containing oxides of alkaline-earth and group-13 metals, and light sources incorporating the same. General Electric Company, Fletcher Yoder, July 18, 2006: US07077980 (8 worldwide citation)

A phosphor comprises europium, at least two alkaline-earth metals, and at least a Group-13 metal. In one embodiment, the phosphor has a formula selected from the group consisting of Sr4-a-zAaEuzD12O22 and Sr4-a-zAaEuzD14O25; wherein A is at least an alkaline-earth metal other than strontium; D is an ...


2
Shankar M V
Shankar Madras Venugopal, Alok M Srivastava, Holly Ann Comanzo, Vikas Midha, William Winder Beers, Gopi Chandran Ramachandran, Mukunda Srinivas Adyam: Composite electrode materials for electric lamps and methods of manufacture thereof. General Electric Company, Fletcher Yoder, April 12, 2005: US06879091 (6 worldwide citation)

An electron emissive composition comprises a barium tantalate composition in an amount of about 50 to about 95 wt %; and a ferroelectric oxide composition in an amount of about 5 to about 50 wt %, wherein the weight percents are based on the total weight of the barium tantalate composition and the f ...


3
Shankar M V
Shankar Madras Venugopal, Alok M Srivastava, Holly Ann Comanzo, Vikas Midha, William Winder Beers, Gopi Chandran Ramachandran, Mukunda Srinivas Adyam: Electrode materials for electric lamps and methods of manufacture thereof. General Electric Company, Fletcher Yoder, February 1, 2005: US06849996 (2 worldwide citation)

An electron emissive composition comprises a barium tantalate composition of the formula (Ba1−x, Cax, Srp, Dq)6(Ta1−y, Wy, Et, Fu, Gv, Caw)2O(11±δ) where δ is an amount of about 0 to about −3; and wherein D is either an alkali earth metal ion or an alkaline earth ion; E, F, and G, are alkaline earth ...


4
Shankar M V
Gopi Chandran Ramachandran, Alok Mani Srivastava, Timothy John Sommerer, Suchismita Sanyal, Prasanth Kumar Nammalwar, Holly Ann Comanzo, William Winder Beers, Madras Venugopal Shankar: Electrode materials for electric lamps and methods of manufacture thereof. General Electric Company, Mary Louise Gioeni, January 26, 2010: US07652415

An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, is also disclosed.


5
Shankar M V
Shankar Madras Venugopal, Alok M Srivastava, Holly Ann Comanzo, Vikas Midha, William Winder Beers, Gopi Chandran Ramachandran, Mukunda Srinivas Adyam: Composite electrode materials for electric lamps and methods of manufacture thereof. General Electric Company, Global Research, December 2, 2004: US20040239225-A1

An electron emissive composition comprises a barium tantalate composition in an amount of about 50 to about 95 wt %; and a ferroelectric oxide composition in an amount of about 5 to about 50 wt %, wherein the weight percents are based on the total weight of the barium tantalate composition and the f ...


6
Thomas Frederick Soules, William Winder Beers, Alok Mani Srivastava, Lionel Monty Levinson, Anil Raj Duggal: Light emitting device with phosphor composition. General Electric Company, Toan B Vo, Noreen C Johnson, June 26, 2001: US06252254 (363 worldwide citation)

The invention relates to a light source comprising a phosphor composition and a light emitting device such as an LED or a laser diode. The phosphor composition absorbs radiation having a first spectrum and emits radiation having a second spectrum and comprises at least one of: YBO


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Emil Vergilov Radkov, Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo, Ljudmil Slavchev Grigorov, Thomas Francis McNulty, Daniel Darcy Doxsee, William Winder Beers: Red emitting phosphor materials for use in LED and LCD applications. Lumination, Fay Sharpe, April 15, 2008: US07358542 (162 worldwide citation)

Phosphor compositions including those having the formulas A2-xEuxW1-yMoyO6, where A is selected from Y, Gd, Lu, La, and combinations thereof; and where 0.5≦x≦1.0, 0.01≦y≦1.0; MmOnX, wherein M is selected from the group of Sc, Y, a lanthanide, an alkali earth metal and mixtures thereof; X is a haloge ...


9
Alok Mani Srivastava, Anil Raj Duggal, Holly Ann Comanzo, William Winder Beers: Single phosphor for creating white light with high luminosity and high CRI in a UV led device. General Electric Company, Foley & Lardner, February 18, 2003: US06522065 (130 worldwide citation)

There is provided a white light illumination system. The illumination system includes a radiation source which emits either ultra-violet (UV) or x-ray radiation. The illumination system also includes a luminescent material which absorbs the UV or x-ray radiation and emits the white light. The lumine ...


10
Alok Mani Srivastava, William Winder Beers: Green-light emitting phosphors and light sources using the same. General Electric Company, Toan P Vo, Noreen C Johnson, August 21, 2001: US06278135 (92 worldwide citation)

A phosphor composition absorbs ultraviolet radiation and emits a green visible light. The phosphor composition comprises at least one of: Ba