Hiraoka & Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E01F ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE119

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7287930 Vehicle impact attenuatorJul 29, 04Oct 30, 07[E01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0106,967 Antifouling waterproof sheetAbandonedJun 10, 04May 19, 05[B32B]
6589633 Ink-receptive fibrous material for advertisementExpiredJun 29, 99Jul 08, 03[B32B]
4749625 Amorphous metal laminate sheetExpiredMar 16, 87Jun 07, 88[B32B]
4714650 Stainproof, flame-resistant composite sheet materialExpiredOct 02, 86Dec 22, 87[B32B]
4696830 Process for preparation of water-proof sheetsExpiredJun 12, 86Sep 29, 87[C05D]
4686135 Composite sheet materialExpiredNov 14, 85Aug 11, 87[C09J, B32B]
4678681 Process for preparation of water-proof sheetsExpiredOct 01, 85Jul 07, 87[B05D]
4538042 Method and apparatus for forming reinforcing cage for prestressed concrete pileExpiredMay 25, 82Aug 27, 85[B23K]
4410575 Lap welding method for textile fabricsExpiredJan 18, 82Oct 18, 83[B65H]
4347284 White cover sheet material capable of reflecting ultraviolet raysExpiredNov 03, 80Aug 31, 82[G01S, B32B]
4324827 Water-proof, fuse-bonding fabricExpiredJan 03, 80Apr 13, 82[B32B]
4312907 Water-impermeable sheet materialExpiredMar 14, 80Jan 26, 82[D06M]
4298645 Tarpaulins having great tearing strengthExpiredJul 14, 80Nov 03, 81[B32B]
4295440 Apparatus for continuously coating a sheet material concurrently with a plurality of stripesExpiredFeb 26, 80Oct 20, 81[B05C]

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