Nakamura Seisakusho Kabushikigaisha

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 452
 
 
 
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
 
 
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128
 
 
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
 
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
 
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151
 
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8702359 Method of forming a recess in a workMay 27, 08Apr 22, 14[B23D]
7969740 Metal-based print board formed with radiatorsMar 10, 10Jun 28, 11[H05K, B32B]
7770633 Plate type heat exchanger and method of manufacturing the sameJun 21, 06Aug 10, 10[F24H, F28F]
7320177 Radiator and method of manufacturing the sameJan 24, 05Jan 22, 08[B21D]
7107808 Shearing method for thin plateOct 13, 04Sep 19, 06[B21D]
6662427 Method of forming a cavity structure with a thin bottom base plateFeb 26, 01Dec 16, 03[B23P, B21D]
6374490 Method of forming a hollow pole projecting on a plate and a method of manufacturing a heat sink using said methodAug 11, 99Apr 23, 02[B12D]
6145365 Method for forming a recess portion on a metal plateSep 28, 98Nov 14, 00[B21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8387247 Method for manufacturing heat radiator having plate-shaped finsExpiredJul 03, 08Mar 05, 13[B23P, B21D]
7900692 Component package having heat exchangerExpiredMar 01, 07Mar 08, 11[H05K]
7464575 Shearing method for thin plateExpiredAug 21, 06Dec 16, 08[B21D]
6915676 Method of forming a protruded shaft for an electronic memory deviceExpiredDec 09, 02Jul 12, 05[B21C]
2005/0081,361 Method for forming protruded shaft of sealed case for memory deviceAbandonedOct 05, 04Apr 21, 05[B23P, E02D]
6571595 Method of forming a package for electronic partsExpiredJul 18, 01Jun 03, 03[B21D]

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