Title:
WRITING TOOL
Document Type and Number:
WIPO Patent Application WO/2011/096357
Kind Code:
A1
Abstract:
Provided is a thermochromic writing tool (1) configured so that a writing body (9) storing a thermochromic ink thereinside is housed in a shaft tube (2), the writing body (9) is moved in the forward/backward directions by operating an operation body provided on the shaft tube (2), and a pen tip (91) of the writing body (9) can project/recede from the tip end of the writing tool; wherein the thermochromic writing tool (1) is provided with a friction unit (10) capable of applying friction to an object handwritten by the thermochromic ink and changing the color of the handwritten object by the frictional heat caused thereby, and a clip body (7) functioning as at least an operation body; and wherein the friction unit (10) is arranged at the rear end of the shaft tube (2), and the clip body (7) is arranged at a portion of the shaft tube (2) other than the rear end.
Inventors:
ITO YOSHIHIRO
Application Number:
PCT/JP2011/051905
Publication Date:
August 11, 2011
Filing Date:
January 31, 2011
Export Citation:
Assignee:
PILOT INK CO LTD (JP)
ITO YOSHIHIRO
ITO YOSHIHIRO
International Classes:
B43K24/04; B43K7/12; B43K25/02; B43K29/02
Domestic Patent References:
| WO2008105227A1 | 2008-09-04 |
Foreign References:
| JPS57179986U | 1982-11-15 | |||
| JPH0628311Y2 | 1994-08-03 | |||
| JP2007055156A | 2007-03-08 | |||
| JP2003305990A | 2003-10-28 | |||
| JPS53147941U | 1978-11-21 |
Other References:
None
See also references of EP 2532531A4
See also references of EP 2532531A4
Attorney, Agent or Firm:
TSUKUNI, HAJIME (JP)
Hajime Tsukuni (JP)
Hajime Tsukuni (JP)
Download PDF:
Claims:
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