Sumita Optical Glass, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS1644
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 8354
 
  
 
C03B MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL 641
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR392
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 3202
 
  
 
2602 TORCHES AND HAND LAMPS AND LANTERNS322
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9405123 Optical systemJun 11, 15Aug 02, 16[G02B, H01S]
9376339 Optical glass, preform for precision press molding, and optical elementMar 10, 15Jun 28, 16[C03C]
9376340 Optical glass, preform for precision press molding, and optical elementApr 15, 15Jun 28, 16[C03C]
9315416 Method of manufacturing light-emitting deviceJul 22, 11Apr 19, 16[C03C, H01L]
D753857 Helmet-mounted lightOct 20, 14Apr 12, 16[2602]
D753858 Helmet-mounted lightOct 20, 14Apr 12, 16[2602]
D753859 Helmet-mounted lightOct 20, 14Apr 12, 16[2602]
8685766 Solid element device and method for manufacturing the sameMar 13, 12Apr 01, 14[H01L]
8545083 Light-emitting device, light source and method of manufacturing the sameDec 20, 10Oct 01, 13[F21V]
8490431 Optical device and method for making the sameAug 02, 07Jul 23, 13[C03B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0121,684 MULTIPLE WAVELENGTH LASER LIGHT SOURCE USING FLUORESCENT FIBERAbandonedJul 07, 06May 31, 07[H01S]
2006/0066,260 Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unitAbandonedSep 30, 04Mar 30, 06[H05B]
6815911 Filament lamp light source unit and filament lamp light quantity control methodExpiredMay 23, 03Nov 09, 04[G05F]
6372155 Oxide glass showing long afterglow and accelerated phosphorescenceExpiredNov 30, 99Apr 16, 02[C09K, C03C]
5439616 Infrared light-excited light-emitting substanceExpiredAug 03, 94Aug 08, 95[C09K, G02B]
5087279 Method of producing optical glass element and production apparatus using this methodExpiredJul 06, 90Feb 11, 92[C03B]
5017520 Fluorosphosphate optical glassExpiredNov 22, 89May 21, 91[C03C]
4990468 Fluorophosphate optical glassExpiredSep 29, 89Feb 05, 91[C03C]

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