YAMANAKA, KAZUE

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1906 MATERIALS AND INSTRUMENTS FOR WRITING BY HAND, FOR DRAWING, FOR PAINTING, FOR SCULPTURE, FOR ENGRAVING AND FOR OTHER ARTISTIC TECHNIQUES425
 
  
 
B43K IMPLEMENTS FOR WRITING OR DRAWING 223

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8801314 Conical NIB and writing instrument using the sameSep 01, 11Aug 12, 14[B43K]
D692055 Pen nibFeb 27, 12Oct 22, 13[1906]
D690363 Pen nibFeb 27, 12Sep 24, 13[1906]
D688306 Pen nibFeb 27, 12Aug 20, 13[1906]
D686282 Pen nibFeb 27, 12Jul 16, 13[1906]
8475071 Conical nib and writing instrument incorporating the sameMay 07, 10Jul 02, 13[B43K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6652177 Conical nib, method of manufacture of the same, and ceramic composite conical nibExpiredNov 27, 02Nov 25, 03[B43K]

Top Inventors for This Owner

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