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JPS6132237A Expired / Lapsed JP ⏱️ 0.0 years remaining

Disc-shaped information recording medium

Assignee: Ricoh Co Ltd
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Filing: 1984-07-23
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Granted: —
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Expires: 2004-07-23
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Abstract

Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Inventors

  • 👤 Yutaka Ueda
  • 👤 裕 上田
  • 👤 Tsutomu Sato
  • 👤 勉 佐藤
  • 👤 Masaaki Umehara
  • 👤 正彬 梅原
  • 👤 Michiharu Abe
  • 👤 通治 安倍
  • 👤 Hideaki Oba
  • 👤 大庭 秀章

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-30 10:37
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/26

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Total Claims: 0
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