POLYMATECH CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 589
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 127
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION158
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6831031 Thermally conductive sheetAug 12, 02Dec 14, 04[C04B]
6322875 Transparent decoration key top and its manufacturing methodApr 07, 98Nov 27, 01[B32B]
6103346 Sheet-like key top and its manufacturing methodApr 07, 98Aug 15, 00[B28B, H01H, B32B]
5873454 Sheet type key topNov 10, 97Feb 23, 99[H01H]
5820809 Manufacturing method for key topsOct 29, 96Oct 13, 98[B29C]
5720472 Short-stroke dome-shaped disc film springAug 09, 96Feb 24, 98[F16F]
5669486 Illuminated switchMay 16, 96Sep 23, 97[H01H]
5439545 Process for producing finger-touch key for manipulation switchJun 17, 93Aug 08, 95[B32B]
5407721 Illuminated switches and rubber material for the cover piece thereforNov 19, 93Apr 18, 95[B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0137,322 Thermally Conductive SheetAbandonedAug 19, 11May 30, 13[H01B]
8377557 Thermally conductive sheet composite and method for manufacturing the sameExpiredJun 25, 09Feb 19, 13[B32B]
2012/0268,379 ILLUMINATED KEY SHEETAbandonedNov 29, 10Oct 25, 12[G06F]
8221883 Graphite sheet and manufacturing method of the sameExpiredJan 28, 09Jul 17, 12[C01B, B32B]
8106320 Decorative sheet, decorative molded body, decorative key sheet, and decorative sheet manufacturing methodExpiredApr 23, 08Jan 31, 12[B28B, H01H, B32B]
8072425 Key sheet for a pointing device and pointing deviceExpiredMay 26, 06Dec 06, 11[G09G]
2011/0226,595 ILLUMINATION TYPE KEY SHEET AND PUSH BUTTON SWITCHAbandonedNov 25, 09Sep 22, 11[F21V, H01H]
7829810 Pushbutton switch cover sheetExpiredMar 27, 08Nov 09, 10[H01H]
2010/0164,870 KEY SHEETAbandonedJul 11, 08Jul 01, 10[H03M, G06F]
7737375 Key sheetExpiredApr 18, 07Jun 15, 10[H01H]
7727618 Decorative molded body, key top for a pushbutton switch, and key sheet for the pushbutton switchExpiredDec 15, 06Jun 01, 10[H01H, B32B]
2010/0110,712 LIGHT LENS FOR CAR INTERIOR LIGHTING DEVICEAbandonedJul 13, 09May 06, 10[F21V]
7690932 Anisotropic conductive sheet and method of manufacturing the sameExpiredApr 13, 07Apr 06, 10[H01R]
2010/0032,276 KEY SHEETAbandonedJul 29, 09Feb 11, 10[H01H]
7655878 Key sheet and key sheet manufacturing methodExpiredJul 15, 05Feb 02, 10[H01H]
2009/0277,766 Elastic Member for Pushbutton SwitchAbandonedOct 23, 06Nov 12, 09[H01H]
7598466 Key sheetExpiredJul 18, 07Oct 06, 09[H01H]
7563121 Discharge tube connectorExpiredDec 21, 07Jul 21, 09[H01R]
7540991 Ion conductive polymer electrolyte membrane and production method for the sameExpiredJul 01, 05Jun 02, 09[H05B]
7508376 Key sheet for pointing device and pointing deviceExpiredMay 27, 05Mar 24, 09[G09G]

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