KOHA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 30332
 
  
 
C30B SINGLE-CRYSTAL GROWTH 1343
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 336
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR392
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 2108
 
  
 
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES 233
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
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 146
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
F21K LIGHT SOURCES NOT OTHERWISE PROVIDED FOR139

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0240,748 SINGLE-CRYSTAL PHOSPHOR AND LIGHT-EMITTING DEVICEOct 20, 14Aug 18, 16[C09K, H01L]
2016/0043,289 SINGLE CRYSTAL PHOSPHOR, PHOSPHOR-CONTAINING MEMBER AND LIGHT-EMITTING DEVICEOct 22, 14Feb 11, 16[C09K, H01L]
2015/0364,646 CRYSTAL LAYERED STRUCTURE AND LIGHT EMITTING ELEMENTDec 25, 13Dec 17, 15[H01L]
2014/0352,604 METHOD FOR GROWING ß-Ga2O3 SINGLE CRYSTALNov 12, 12Dec 04, 14[C30B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9915009 Method for growing beta-Ga2O3-based single crystal, and beta-Ga2O3-based single crystal substrate and method for producing sameMay 02, 14Mar 13, 18[C30B]
9915010 -based single crystal substrate and method for producing sameMay 02, 14Mar 13, 18[C30B]
9903045 -based single crystalOct 09, 13Feb 27, 18[C30B]
9634216 Light emitting deviceAug 08, 14Apr 25, 17[H01L]
9431489 β-Ga2O3-based single crystal substrateFeb 27, 15Aug 30, 16[H01L, C03B, C01G, C30B]
9349915 -based single crystal substrateFeb 26, 15May 24, 16[H01L, C30B, B32B]
9169980 Lighting device and display deviceMar 19, 14Oct 27, 15[F21V, F21Y, F21K, G02F, F21S]
9166127 Light source moduleFeb 25, 10Oct 20, 15[F21V, H01L, F21Y, G09F, G02B]
9153648 Semiconductor stacked body, method for manufacturing same, and semiconductor elementApr 03, 12Oct 06, 15[C23C, H01L, C30B]
9117974 Light emitting element and method of making sameJun 27, 14Aug 25, 15[H01L, C30B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0137,965 GALLIUM OXIDE SUBSTRATEAbandonedJul 01, 15May 18, 17[C30B]
2015/0380,500 Ga2O3-BASED SINGLE CRYSTAL SUBSTRATEAbandonedFeb 27, 15Dec 31, 15[H01L, C01G, C30B]
2015/0249,184 Semiconductor Multilayer Structure And Semiconductor ElementAbandonedFeb 26, 15Sep 03, 15[H01L]
2015/0249,189 Semiconductor Multilayer Structure And Semiconductor ElementAbandonedFeb 26, 15Sep 03, 15[H01L, C30B]
2015/0155,356 SEMICONDUCTOR LAMINATE STRUCTURE AND SEMICONDUCTOR ELEMENTAbandonedMay 27, 13Jun 04, 15[H01L]
2015/0083,967 Phosphor, Method for Manufacturing same, and light-emitting deviceAbandonedApr 18, 13Mar 26, 15[C09K, H01L]
2014/0027,770 SEMICONDUCTOR LAMINATE AND PROCESS FOR PRODUCTION THEREOF, AND SEMICONDUCTOR ELEMENTAbandonedApr 03, 12Jan 30, 14[H01L]
8592289 Epitaxial wafer, method for manufacturing gallium nitride semiconductor device, gallium nitride semiconductor device and gallium oxide waferExpiredFeb 04, 10Nov 26, 13[H01L, C30B]
2010/0270,548 Semiconductor element and method of making sameAbandonedJul 06, 10Oct 28, 10[H01L]
7768029 LED lampExpiredAug 20, 07Aug 03, 10[H01L]
7285803 Light-emitting diode lamp having a terminal portion with a notch portionExpiredAug 05, 04Oct 23, 07[H01L]
7279723 LED lampExpiredMar 19, 04Oct 09, 07[H01L]
2007/0131,951 Light-emitting element and making method thereofAbandonedDec 06, 06Jun 14, 07[H01L]
2007/0134,833 Semiconductor element and method of making sameAbandonedDec 11, 06Jun 14, 07[H01L]
6872585 LED device and manufacturing method thereofExpiredMay 11, 04Mar 29, 05[H01L]
6834977 Light emitting deviceExpiredJun 04, 01Dec 28, 04[F21L]
6812481 LED device and manufacturing method thereofExpiredAug 30, 02Nov 02, 04[H01L]
6496162 Light emitting diode display unitExpiredJan 04, 01Dec 17, 02[G09G]
6445011 Light-emitting diodeExpiredJan 28, 00Sep 03, 02[H01L]
6236382 Light emitting diode display unitExpiredMay 18, 98May 22, 01[G09G]

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