Inventor · disambiguated record
Toru Kitao
Also filed as: KITAO TORU
5 granted patents·47 citations·filing 1994–2003
79Inventor score
Technology areasB43K
Top patents by PatentIndex Score
5 records- 0172US6887008B2Ballpoint pen tip, ballpoint pen utilizing the ballpoint pen tip and method of manufacturing the ballpoint pen tipMITSUBISHI PENCIL KABUSHIKIKAI·Filed 2003·Granted May 3, 2005·12 cites·19 claims
- 0259US5915871ABall-point pen capMITSUBISHI PENCIL CO·Filed 1997·Granted Jun 29, 1999·12 cites·1 claims
- 0357US5678942ABall-point penMITSUBISHI PENCIL CO·Filed 1996·Granted Oct 21, 1997·14 cites·13 claims
- 0441US5711626ABall-point pen with back flow stopMITSUBISHI PENCIL CO·Filed 1994·Granted Jan 27, 1998·7 cites·13 claims
- 0528US5690442AMetal tip for ball-point penMITSUBISHI PENCIL CO·Filed 1995·Granted Nov 25, 1997·2 cites·4 claims
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