Tape-guide made from synthetic resin

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5221061
SERIAL NO

07591734

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A semi-cylindrical tape-guide for a magnetic tape is formed by an injection molding process of a mixture material containing 60 to 89% by weight of an ultra-high-molecular-weight polyorefin base resin, having a molecular weight of 800,000, and 4 to 25% by weight of an inorganic additive.

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Patent Owner(s)

Patent OwnerAddress
SANSHIN INDUSTRY CO LTDYOKOHAMA-SHI

International Classification(s)

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  • 1990 Application Filing Year
  • B65H Class
  • 956 Applications Filed
  • 4 Patents Issued To-Date
  • 0.42 % Issued To-Date

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Tsuneo Yokohama, JP 15 187
Nishioka, Makoto Yokohama, JP 11 43

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Patent Citation Ranking

  • 6 Citation Count
  • B65H Class
  • 3.99 % this patent is cited more than
  • 32 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2844613458253222101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 900255075100125150175200225250275300325350375400425450475

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