TOMOEGAWA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 18187
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 7126
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM6151
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3122
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255
 
  
 
B31F MECHANICAL WORKING OR DEFORMATION OF PAPER OR CARDBOARD 223
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES277
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 229
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 279
 
  
 
G03H HOLOGRAPHIC PROCESSES OR APPARATUS 230

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0074,267 END-FACE CLEANERMar 17, 16Mar 15, 18[B08B, G02B]
2017/0026,731 POP NOISE REDUCTION TOOL, MICROPHONE EQUIPPED THEREWITH, POP NOISE MEASUREMENT METHOD, AND POP NOISE MEASUREMENT DEVICEFeb 27, 15Jan 26, 17[H04R]
2017/0003,422 ANISOTROPIC OPTICAL FILMJan 16, 15Jan 05, 17[G02B, G02F]
2016/0327,697 PROCESS FOR PRODUCTION OF ANISOTROPIC OPTICAL FILMMar 30, 16Nov 10, 16[B29C, B29D, G02B]
2016/0322,122 RADIATION SHIELDING SHEETAug 18, 14Nov 03, 16[G21F, D21H, D06M, D04H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9581738 Display apparatusDec 06, 13Feb 28, 17[G02B, G02F]
9575281 Lens array fabrication method, and film containing base plate and film attaching instrument employed in sameDec 28, 12Feb 21, 17[G02B, B32B]
9470845 Optical connection component manufacturing apparatus and method of manufacturing optical connection componentMar 20, 14Oct 18, 16[G02B, B32B]
9467760 Microphone device, microphone unit, microphone structure, and electronic equipment using theseMar 15, 13Oct 11, 16[H04R]
D767839 Optical connector cleanerMar 02, 15Sep 27, 16[0899]
9400350 Optical connection component manufacturing apparatus and high polymer material coat forming apparatusMar 20, 14Jul 26, 16[B05B, G02B]
9274365 Display device and anisotropic scattererJan 10, 13Mar 01, 16[G02B, G02F]
9256017 Optical transmission medium bend working device and optical transmission medium bend working methodDec 19, 11Feb 09, 16[G02B]
9218800 Sound transmission material, sound control plane structure including building use using the sound transmission material, windscreen for microphone, protective grille, sound transmission projection screen, and speakerAug 30, 12Dec 22, 15[G10K, H04B, E04B, D04H]
8815369 Adhering jig for adhesive connecting memberOct 27, 09Aug 26, 14[B23Q, B29C, B31F, B65H, G03D, B32B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9372303 Optical connection component manufacturing apparatus and high polymer material coat forming apparatusWithdrawnMar 20, 14Jun 21, 16[B05B, G02B]
2015/0371,743 COMPOSITE MAGNETIC MATERIALAbandonedJun 18, 15Dec 24, 15[H01F, C22C]
2014/0158,277 CLAY FILM COMPOSITEAbandonedJan 13, 14Jun 12, 14[B32B]
2013/0011,782 POLYMER EXPANDED PARTICLE, EXPANDED TONER AND METHOD FOR PRODUCING POLYMER EXPANDED PARTICLE AND EXPANDED TONERAbandonedMar 17, 11Jan 10, 13[C08J, G03G, B32B]
2012/0308,761 CLAY FILM COMPOSITEAbandonedDec 24, 10Dec 06, 12[B32B]
2012/0145,038 CLAY DISPERSION LIQUID, AND METHOD FOR PRODUCING THE SAME, CLAY FILM, AND METHOD FOR PRODUCING THE SAME, AND TRANSPARENT MATERIALAbandonedAug 24, 10Jun 14, 12[B28B, C09D]
2012/0091,668 HEAT-RESISTANT SEAL MEMBERAbandonedJun 04, 10Apr 19, 12[B29C, F16J, B32B]
2012/0003,525 SEPARATOR FOR AN ELECTRICITY STORAGE DEVICE AND METHOD OF MANUFACTURING SAMEAbandonedMar 16, 10Jan 05, 12[B05D, H01M, D21H, H01G, B32B, D04H]
2011/0206,972 POWER STORAGE DEVICE SEPARATORAbandonedOct 14, 09Aug 25, 11[H01M, D21H, C08L, H01G, B32B, D04H]
2011/0198,765 OPTICAL TRANSMISSION MEDIUM SHAPING METHOD, OPTICAL TRANSMISSION MEDIUM SHAPING APPARATUS, AND OPTICAL TRANSMISSION MEDIUM MANUFACTURING METHODAbandonedOct 16, 09Aug 18, 11[B29D, G02B]
2011/0110,630 OPTICAL TRANSMISSION MEDIUM, FERRULE, OPTICAL TERMINAL CONNECTOR, OPTICAL STRUCTURE, AND OPTICAL EQUIPMENTAbandonedJun 08, 09May 12, 11[G02B]
2010/0316,912 SEPARATOR FOR POWER STORAGE DEVICEAbandonedJun 09, 10Dec 16, 10[H01M]
2010/0246,011 OPTICAL FILMAbandonedMar 28, 07Sep 30, 10[G02B]
2010/0209,836 COLOR TONER FOR ELECTROPHOTOGRAPHYAbandonedJul 23, 08Aug 19, 10[G03G]
2010/0143,836 ELECTROPHOTOGRAPHIC TONERAbandonedMar 28, 07Jun 10, 10[G03G]
2010/0098,991 Gas Diffusion Electrode For Polymer Electrolyte Fuel Cell, Membrane-Electrode Assembly For Polymer Electrolyte Fuel Cell, Production Method Therefor, And Polymer Electrolyte Fuel CellAbandonedFeb 22, 08Apr 22, 10[C25B, B05D, H01M]
2010/0055,594 Toner for developing electrostatically charged imagesAbandonedSep 03, 09Mar 04, 10[G03G]
2010/0003,459 Optical laminated filmAbandonedJan 31, 08Jan 07, 10[B32B]
2009/0280,424 Toner for developing electrostatically charged image and process for producing the sameAbandonedMay 05, 09Nov 12, 09[G03G]
2009/0233,048 Anti-glare material and optical layered productAbandonedNov 17, 08Sep 17, 09[B05D, B32B]

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