TOKAI OPTICAL CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02C SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES 1336
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 12193
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 2238
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 264
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
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 MATERIALS159
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 191
 
  
 
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

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0097,521 OPTICAL PRODUCT AND SPECTACLE LENSOct 01, 15Apr 06, 17[G02B, G02C]
2012/0033,175 OPTICAL PRODUCT AND SPECTACLE PLASTIC LENSOct 20, 11Feb 09, 12[G02B, G02C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9651713 Optical product and spectacle plastic lensFeb 20, 15May 16, 17[G02B, G02C]
9360595 Antifog optical article and manufacturing method thereofJul 02, 12Jun 07, 16[C08J, C03C, G02B]
9069125 Optical product and method for manufacturing sameJul 17, 14Jun 30, 15[C23C, C03C, G02B, B32B]
9022561 Plastic optical product and plastic lens for spectaclesOct 25, 12May 05, 15[G02B, G02C]
8985766 Method for designing spectacle lensesSep 23, 09Mar 24, 15[G02C]
8908275 Optical product and spectacle plastic lensJan 23, 13Dec 09, 14[G02B]
8746878 Optical member, plastic lens for eyeglasses, and method for manufacturing the sameSep 22, 11Jun 10, 14[G02B]
8746880 Optical product and eyeglass plastic lensNov 29, 11Jun 10, 14[G02B]
8535114 Method for manufacturing a precursor lens for a rim-shaped lensMay 18, 09Sep 17, 13[B24B]
8182084 Display unitMay 27, 10May 22, 12[G02C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0192,717 OPTICAL ARTICLE FOR RECEIVING AND EMITTING INFRARED RAY AND INFRARED RAY RECEIVING AND EMITTING UNITAbandonedMar 23, 15Jul 09, 15[G02B]
2013/0063,810 INFRARED-TRANSMITTING COVERAbandonedNov 06, 12Mar 14, 13[G02B]
2008/0316,594 Infrared-Transmitting CoverAbandonedOct 07, 05Dec 25, 08[G02B]
2008/0050,601 Hard coating composition and plastic optical productAbandonedAug 28, 07Feb 28, 08[C09D, B32B]

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