Inventor
NAGATOMI AKIRA
JP38 patents
⚠️ This page may combine multiple inventors who share the name “NAGATOMI AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOWA ELECTRONICS MATERIALS CO LTD
16 patentsUS7887718B2Feb 15, 2011
Phosphor and manufacturing method therefore, and light emission device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD25 citations92
US7524437B2Apr 28, 2009
Phosphor and manufacturing method of the same, and light emitting device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD38 citations92
US7476338B2Jan 13, 2009
Phosphor and manufacturing method for the same, and light source
DOWA ELECTRONICS MATERIALS CO LTD33 citations92
US7476337B2Jan 13, 2009
Phosphor and manufacturing method for the same, and light source
DOWA ELECTRONICS MATERIALS CO LTD40 citations92
US7443094B2Oct 28, 2008
Phosphor and manufacturing method of the same, and light emitting device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD22 citations92
US7432647B2Oct 7, 2008
Light source having phosphor including divalent trivalent and tetravalent elements
DOWA ELECTRONICS MATERIALS CO LTD35 citations92
US7514860B2Apr 7, 2009
Phosphor mixture and light emitting device
DOWA ELECTRONICS MATERIALS CO LTD18 citations84
US7477009B2Jan 13, 2009
Phosphor mixture and light emitting device
DOWA ELECTRONICS MATERIALS CO LTD11 citations84
US7445730B2Nov 4, 2008
Phosphor and manufacturing method of the same, and light emitting device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD16 citations84
US7291289B2Nov 6, 2007
Phosphor and production method of the same and light source and LED using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD12 citations84
US7476335B2Jan 13, 2009
Phosphor and manufacturing method therefore, and light source using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD7 citations74
US8048338B2Nov 1, 2011
Phosphor, phosphor sheet, and manufacturing method therefore, and light emission device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD6 citations63
US7803286B2Sep 28, 2010
Phosphor and manufacturing method for the same, and light source
DOWA ELECTRONICS MATERIALS CO LTD2 citations63
US7476336B2Jan 13, 2009
Phosphor and manufacturing method for the same, and light emitting device using the phosphor
DOWA ELECTRONICS MATERIALS CO LTD3 citations63
US7884539B2Feb 8, 2011
Light source having phosphor including divalent, trivalent and tetravalent elements
DOWA ELECTRONICS MATERIALS CO LTD0 citations52
US7527748B2May 5, 2009
Phosphor and phosphor film for electron beam excitation and color display apparatus using the same
DOWA ELECTRONICS MATERIALS CO LTD0 citations52
DOWA MINING CO
7 patentsUS7252788B2Aug 7, 2007
Phosphor, light source and LED
DOWA MINING CO65 citations98
US7138756B2Nov 21, 2006
Phosphor for electron beam excitation and color display device using the same
DOWA MINING CO88 citations98
US7273568B2Sep 25, 2007
Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED
DOWA MINING CO47 citations96
US7345418B2Mar 18, 2008
Phosphor mixture and light emitting device using the same
DOWA MINING CO52 citations92
US6319485B1Nov 20, 2001
Magnetic material and production method thereof
DOWA MINING CO42 citations88
US7332220B2Feb 19, 2008
Iron nitride magnetic powder and method of producing the powder
DOWA MINING CO0 citations49
US7241501B2Jul 10, 2007
Iron nitride magnetic powder and method of producing the powder
DOWA MINING CO1 citations49
NAGATOMI AKIRA
7 patentsUS8062549B2Nov 22, 2011
Phosphor and manufacturing method therefore, and light emission device using the phosphor
NAGATOMI AKIRA15 citations92
US9761868B2Sep 12, 2017
Lithium—transition metal oxide powder and method of producing the same, positive electrode active material for lithium ion battery, and lithium ion secondary battery
NAGATOMI AKIRA3 citations72
US8475682B2Jul 2, 2013
Phosphor and manufacturing method therefore, and light emission device using the phosphor
NAGATOMI AKIRA2 citations62
USRE44996EJul 8, 2014
Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED
NAGATOMI AKIRA0 citations51
US8441180B2May 14, 2013
Light source having phosphor including divalent, trivalent and tetravalent elements
NAGATOMI AKIRA0 citations51
US8308981B2Nov 13, 2012
Phosphor and manufacturing method for the same, and light source
NAGATOMI AKIRA0 citations51
US8512602B2Aug 20, 2013
ITO powder and method of producing the same, coating material for transparent conductive material, and transparent conductive film
NAGATOMI AKIRA0 citations39