THE PILOT INK CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 335
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 2468
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM13144
 
  
 
B41M PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING 1237
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR788
 
  
 
A63H TOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS626
 
  
 
C09B ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES 538
 
  
 
B43L ARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR WRITING OR DRAWING 36
 
  
 
D01F CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 332
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 378

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0274,698 THERMOCHROMIC COLOR-MEMORIZING COMPOSITION AND THERMOCHROMIC COLOR-MEMORIZING MICROCAPSULE PIGMENT ENCAPSULATING SAMEAug 04, 15Sep 28, 17[C09K, B43K, C09D, C09B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9855789 Thermochromic color-memorizing composition and thermochromic color-memorizing microcapsule pigment encapsulating sameAug 04, 15Jan 02, 18[B41M, C09K, B43K, C09D, C09B]
9695329 Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating sameJun 12, 14Jul 04, 17[B41M, C09K, B43K, B43L, C09D, C09B]
9682594 Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating sameFeb 04, 15Jun 20, 17[B41M, C09K, B43K, C09D]
9500969 Electrophotographic toner and method for producing the sameJun 05, 15Nov 22, 16[G03G]
9005857 Thermochromic color-memorization toner, cartridge including same housed therein, image formation apparatus, cartridge set, and image formation apparatus setNov 13, 09Apr 14, 15[B43K, C09D, G03G]
8962522 Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating the sameOct 07, 11Feb 24, 15[B41M, C09K, C09D, C09B]
8943694 Accessory making device, accessory making kit, and method for making accessoryDec 16, 10Feb 03, 15[B23P, B25B, A44C, A45D, B44C]
8845799 Reversibly thermochromic aqueous ink composition, and writing instrument and writing instrument set each utilizing sameAug 16, 10Sep 30, 14[B41M, B43K, B43L, C09D, C09B]
8764333 Water based ink compositions for ballpoint penJan 30, 08Jul 01, 14[B43K]
8511926 Water-based ballpoint penMar 17, 09Aug 20, 13[B43K, C09D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9233574 Thermochromic writing instrumentWithdrawnNov 01, 12Jan 12, 16[B43M, B43K, C09D]
2012/0082,928 ELECTROPHOTOGRAPHIC TONER AND METHOD FOR PRODUCING THE SAMEAbandonedOct 03, 11Apr 05, 12[G03G]
2010/0248,585 DRAWING TOY AND DRAWING TOY SET USING THE SAMEAbandonedJan 29, 07Sep 30, 10[A63H]
2010/0098,475 WRITING INSTRUMENT AND WRITING INSTRUMENT SETAbandonedOct 16, 07Apr 22, 10[B43K]
2008/0293,326 HAIR FOR TOYSAbandonedMay 14, 08Nov 27, 08[A63H]
2007/0189,836 Friction body, writing instrument and writing instrument setAbandonedJan 29, 07Aug 16, 07[B43K]
2007/0086,832 Writing instrument for water-metachromatic members with detachable pen point holderAbandonedNov 09, 06Apr 19, 07[B43K]
2007/0082,977 Ink composition for color-memorizing photochromic writing instrument and writing instrument using the sameAbandonedOct 07, 05Apr 12, 07[C09D]
6943772 Magnetic display deviceExpiredFeb 24, 99Sep 13, 05[G09G, B32B]
6498203 Rubber-erasable aqueous ink for writing material composition and writing materials using the sameExpiredDec 02, 99Dec 24, 02[C09D, C08L]
6468088 Solid having reversibly invisible/visible thermochromic construction enclosed thereinExpiredOct 30, 00Oct 22, 02[G09B]
2002/0150,737 Water-discoloring printed matter and water-discoloring toy employing the sameAbandonedApr 10, 02Oct 17, 02[B32B]
6336762 Direct-fluid-supply writing deviceExpiredFeb 15, 00Jan 08, 02[B43K]
5967687 Direct liquid supply writing implementExpiredAug 28, 98Oct 19, 99[B43K]
5932992 Method for energizing energization-operated toy element and energization-operated toyExpiredJun 22, 98Aug 03, 99[H02J]
5928803 Temperature-sensitive reversibly deformable laminateExpiredMar 28, 97Jul 27, 99[B41M]
5919404 Reversible thermochromic compositionsExpiredApr 20, 98Jul 06, 99[C09D, G02F]
5858914 Thermochromic coloring color-memory footwearExpiredJun 24, 96Jan 12, 99[B41M]
5721059 Temperature-dependent color/transparency storing resin composition and laminate member employing the sameExpiredAug 29, 96Feb 24, 98[C08K, B32B]
5716253 Thermally color-changeable toyExpiredJun 14, 96Feb 10, 98[A63H]

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