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특허 상세정보

Process for producing substrate sheet for information recording mediums

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29D-011/00    B29D-017/00   
미국특허분류(USC) 264/133 ; 264/16 ; 425/810
출원번호 US-0217806 (1994-03-28)
우선권정보 JP-0330383 (1989-12-19); JP-0052807 (1990-03-06); JP-0052808 (1990-03-06); JP-0062668 (1990-03-15); JP-0087540 (1990-04-03); JP-0087541 (1990-04-03)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 18  인용 특허 : 0
초록

The present invention provides a process using a roll stamper which molds a substrate sheet for information recording mediums by continuously transferring preformat patterns on a resin sheet. The roll stamper has the feature that the preformat pattern on the roll stamper has a value of b/a of greater than 1 when the length of the preformat pattern in the direction parallel to the direction in which the resin sheet is transported is defined as a and the length in the direction perpendicular thereto as b.

대표
청구항

A process for producing a substrate sheet for an information recording medium, having a preformat pattern with a length A and a width B, which comprise the steps of: melt-extruding a resin sheet; and passing the extruded resin sheet between a roll stamper, having on its periphery a pattern to be transferred corresponding to the preformat pattern, and a roll disposed opposite to the roll stamper, to transfer the pattern to be transferred to the extruded resin sheet, wherein the pattern to be transferred has a length a corresponding to the length A in the ...

이 특허를 인용한 특허 피인용횟수: 18

  1. Morkved,Terry L.; Aspen,Frank E.. Anti-reflection optical data storage disk master. USP2008097427466.
  2. Rudmann, Hartmut; Maciossek, Andreas; Rossi, Markus. Manufacturing a replication tool, sub-master or replica. USP2012078221665.
  3. Yasunaga,Tadashi; Niitsuma,Kazuhiro. Method of magnetic transfer to flexible medium. USP2007037187510.
  4. Daecher Jeffrey Lawrence ; Fields Steven David ; Khanarian Garo ; Stein Alan Daniel. Process and apparatus for forming plastic sheet. USP2001026183829.
  5. Jeffrey Lawrence Daecher ; Steven David Fields ; Garo Khanarian ; Alan Daniel Stein. Process and apparatus for forming plastic sheet. USP2002096451403.
  6. Jeffrey Lawrence Daecher ; Steven David Fields ; Garo Khanarian ; Alan Daniel Stein. Process and apparatus for forming plastic sheet. USP2002106472031.
  7. Edwards, Jathan D.; Kerfeld, Donald J.. Replica disk for data storage. USP2014048705334.
  8. Edwards, Jathan D.; Kerfeld, Donald J.. Replica disk for data storage. USP2013118593931.
  9. Couzin,Dennis I.; Sandler, legal representative,Ronald A.; Heenan,Sidney A.. Retroreflector with controlled divergence made by the method of groove undulation. USP2008097427139.
  10. Edwards, Jathan D.; Kerfeld, Donald J.. Reverse optical mastering for data storage disk replicas. USP2010097801016.
  11. Edwards, Jathan D.; Kerfeld, Donald J.. Reverse optical mastering for data storage disk replicas. USP2013018363534.
  12. Edwards, Jathan D.; Kerfeld, Donald J.. Reverse optical mastering for data storage disk replicas. USP201312RE44633.
  13. Edwards,Jathan D.; Kerfeld,Donald J.. Reverse optical mastering for data storage disk replicas. USP2008047352685.
  14. Edwards, Jathan D.; Kerfeld, Donald J.. Reverse optical mastering for data storage disk stamper. USP2009107600992.
  15. Edwards, Jathan D.. Reverse optical mastering for data storage disks. USP2005056890704.
  16. Edwards, Jathan D.. Reverse optical mastering for data storage disks. USP2004046728196.
  17. Edwards,Jathan D.. Reverse optical mastering for data storage disks. USP2008037349323.
  18. Nakano, Jun; Akiyama, Yuji; Masuhara, Shin. Stamper for optical disc, method for manufacturing optical disc, and optical disc. USP2011067968017.