HOYA LENS CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
D06P DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM 118
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
G02C SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES 148

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5961889 Process of producing polythiol oligomerApr 25, 97Oct 05, 99[C08G]
5917119 Method for deciding parameters for dyeing lenses and method for producing colored lensesJul 03, 97Jun 29, 99[G01J, G02B, D06P]
5708492 Progressive power multifocal lensSep 19, 96Jan 13, 98[G02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4729651 Progressive power ophthalmic lensExpiredMar 02, 82Mar 08, 88[G02C]
4650843 Soft contact lensExpiredJan 02, 85Mar 17, 87[C08F, G02C]
4573121 Method for determining optimum thickness of ophthalmic lensExpiredJun 06, 83Feb 25, 86[G02C]
4540761 Oxygen-permeable hard contact lensExpiredMar 19, 84Sep 10, 85[C08F, G03B]
4537480 Motor-driven subjective phorometerExpiredJun 01, 83Aug 27, 85[A61B]
4528351 Plastic lensExpiredJul 22, 82Jul 09, 85[C08F, G03B]
4472036 Progressive multi-focal lensesExpiredApr 13, 81Sep 18, 84[G02C]
4393184 Lens having a high refractive index with a low dispersionExpiredOct 26, 81Jul 12, 83[C08F]
4373076 Terpolymer with a high refractive indexExpiredOct 26, 81Feb 08, 83[C08F]
4350877 Calculating rule useful for making eyeglassesExpiredJul 18, 80Sep 21, 82[G06G]
4329378 Method for marking an indication to the lensExpiredDec 11, 79May 11, 82[B05D]
4217736 Method for automatically grinding lensesExpiredSep 30, 77Aug 19, 80[B24B]
4203666 LensmeterExpiredNov 01, 77May 20, 80[G01B]

Top Inventors for This Owner

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