Magnetic tape cartridge

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6499685
SERIAL NO

10003300

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A magnetic tape cartridge includes a cartridge casing formed by upper and lower casing halves and a single reel around which a magnetic tape is wound and which is contained in the cartridge casing for rotation. A slide door for opening and closing a tape outlet opening is mounted on the cartridge casing to be linearly slidable along a door passage between a closing position where it closes the tape outlet opening and an opening position where it opens the tape outlet opening. A door spring for urging the slide door toward the closing position and holding the same in the closing position is disposed on the door passage.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATIONTOKYO 106-8620

International Classification(s)

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  • 2001 Application Filing Year
  • G03B Class
  • 1509 Applications Filed
  • 467 Patents Issued To-Date
  • 30.95 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20012002200320042005200620072008200920100255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishihara, Yusuke Kanagawa, JP 102 446
Morita, Kiyoo Kanagawa-ken, JP 149 799
Shiga, Hideaki Kanagawa-ken, JP 127 552
Takahashi, Daisuke Kanagawa-ken, JP 266 1309
Tsuyuki, Seiji Kanagawa, JP 73 350

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Patent Citation Ranking

  • 1 Citation Count
  • G03B Class
  • 5.18 % this patent is cited more than
  • 23 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4552417862241558511101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0255075100125150175200225250275300325350375400425450475500525550575

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