GOHSYU CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21J FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES 218
 
  
 
A61F FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS 1139
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL120
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 122
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
C22C ALLOYS 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9895732 Magnesium base alloy tube and its manufacturing methodOct 20, 15Feb 20, 18[A61F, B22F, B21C, C22C]
9770752 Manufacturing method of gears for a speed change device and its apparatusOct 27, 14Sep 26, 17[B21K, B21D]
9032773 Manufacturing apparatus of plate-like tooth profile memberNov 19, 10May 19, 15[B21K, B21J]
6161415 Cold deep hole forming deviceMar 16, 99Dec 19, 00[B21J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6743311 Forging methodExpiredOct 12, 01Jun 01, 04[C21D]
6536257 Speed-changing gear manufacturing apparatusExpiredApr 19, 01Mar 25, 03[B21K]
6260400 Full enclosed forging apparatusExpiredDec 09, 99Jul 17, 01[B21J]

Top Inventors for This Owner

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