TSUBAKI NAKASHIMA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 367
 
  
 
F16H GEARING397
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B24C ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL117
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 124
 
  
 
D06N WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR 113

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9719942 Sintered ceramic and ceramic sphereNov 11, 10Aug 01, 17[C04B, G01N, F16C, D06N, B32B]
9316599 Device for inspecting ceramic sphereAug 13, 14Apr 19, 16[C04B, G01N, F16C]
6755588 Ball for ball-point penAug 11, 03Jun 29, 04[B43K]
6643932 Method for inserting balls and spacers into ball screw deviceMay 23, 02Nov 11, 03[F16H]
6176149 Ball screw having spacersMay 28, 99Jan 23, 01[F16H]
6113274 Linear guideway having spacers and spacer ballApr 15, 99Sep 05, 00[F16C]
6095009 Ball screw having spacersMar 25, 99Aug 01, 00[F16H]
5950469 Method and equipment for surface-hardening treatment of steel balls for a ball bearingApr 03, 98Sep 14, 99[B24C, B21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6499374 Ball screw with alternately disposed steel balls and ceramic ballsExpiredJul 30, 01Dec 31, 02[F16H]
6423111 Ball for ball-point penExpiredApr 11, 01Jul 23, 02[C22C]
6415676 Ball screw device having spacersExpiredOct 24, 00Jul 09, 02[F16H]

Top Inventors for This Owner

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