NIPPON LEAKLESS INDUSTRY CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS1139
 
  
 
F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 530
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9284913 Metal gasketApr 17, 12Mar 15, 16[F02F, F16J]
9121489 Metal gasketMar 06, 15Sep 01, 15[F16H, F16J]
8939452 Metal gaskets for cylinder heads, and methods for manufacturing sameFeb 21, 11Jan 27, 15[B21D, F02F, F16J]
7989027 Metal gasket material plate and method for manufacturing the sameDec 28, 07Aug 02, 11[F16J]
7147919 Expansion graphite sheet of high thermal resistance, and exhaust gasket of high thermal resistanceJan 18, 05Dec 12, 06[B32B]
7048278 Compound sheet gasketOct 03, 01May 23, 06[F02F]
6957814 Metal gasketJun 18, 02Oct 25, 05[F02F]
6607830 Composite material for metal gasketOct 23, 01Aug 19, 03[B32B]
5690342 Metal gasket assembly with full beads, half beads, and shimsAug 05, 96Nov 25, 97[F16J]
5664790 Metal gasket assembly with shimsAug 27, 96Sep 09, 97[F16J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0254,235 Metal gasket material plate and method for manufacturing the sameAbandonedJun 10, 11Oct 20, 11[F02F, F16J]
2008/0047,636 Method of Manufacturing Metal GasketAbandonedAug 23, 05Feb 28, 08[C21D]
2006/0232,017 Metal gasket for cylinder headAbandonedMar 17, 04Oct 19, 06[F02F]
2006/0100,374 Gasket materialAbandonedApr 30, 03May 11, 06[C08L, F16J]
2005/0221,052 Metal gasket material sheetAbandonedJun 06, 05Oct 06, 05[B32B]
6889983 Gasket for high-temperature joint and method of fabricating the sameExpiredMar 05, 02May 10, 05[F16J]
6703078 Metal gasket raw material plate and manufacturing method thereforExpiredFeb 19, 02Mar 09, 04[B05D]
6619666 Metal gasket assemblyExpiredJun 11, 96Sep 16, 03[F02F]
6554286 Metal gasket assembly for cylinder headExpiredNov 07, 00Apr 29, 03[F02F, F16J]
6378876 Metal gasket assembly for cylinder headExpiredOct 18, 00Apr 30, 02[F02F]
5749996 Method of producing reclaimed joint sheet and the reclaimed jointsheetExpiredMay 13, 97May 12, 98[B29C]
5658657 Reclaimed joint sheetExpiredMay 26, 95Aug 19, 97[B32B]
5130203 Metal gasket and method of producing the sameExpiredJul 28, 89Jul 14, 92[B32B]
5032430 Method of producing a metal gasketExpiredMar 16, 90Jul 16, 91[B05D]
4968045 Metal gasketExpiredNov 22, 88Nov 06, 90[F16J]
4765634 Metal gasket for a cylinder head on an internal combustion engineExpiredOct 10, 86Aug 23, 88[F16J]

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