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Patent Searching and Data


Title:
TAPE CASSETTE
Document Type and Number:
Japanese Patent JP3460386
Kind Code:
B2
Abstract:

PURPOSE: To obtain a tape cartridge capable of finding out the amount of the taken up tape by means of changing the color of specified parts on the surface of the cartridge in accordance with the presence of the tape wound on tape reels.
CONSTITUTION: A color changing part 30, the color of which is changed in accordance with the background, is arranged on at least one part of a tape cartridge casing 10, where a part of the tape wound on the tape reels is visible through. The original reflecting color of the color changing part 30 is observed on the parts A where the background has absorbance. Meanwhile, the color changing part 30 is looked as almost transparent and colorless on the parts B where the background is reflective. Thus, the amount of taken up tape is found out.


Inventors:
Keita Shirakami
Application Number:
JP14091595A
Publication Date:
October 27, 2003
Filing Date:
June 07, 1995
Export Citation:
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Assignee:
ソニー株式会社
International Classes:
C09D11/00; C09D11/02; C09D11/037; G11B23/087; G11B23/38; (IPC1-7): G11B23/38
Domestic Patent References:
JP3167238A
JP6131846A
JP61214190A
JP3124385U
JP1159286U
JP1162183U
JP437336U
JP62194037U
JP375471U
Attorney, Agent or Firm:
Yoshisue Kakuda (2 outside)