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Canadian application, no grantCanada

Semiconductor memory apparatus and method for writing data into the flash memory device

CA 2461446 A1 · Owner: Inagaki, Yoshihisa · Inventors: Inagaki, Yoshihisa; Honda, Toshiyuki

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

When rewriting or additionally writing a page in one block of a flash memory data of the previous block is saved in a page buffer (2). Thus it is possible , to eliminate another save buffer other than the page buffer (2) which reduces , the device size than the conventional one. The write object data (DN8 to DN12) to be stored in a page buffer (2) by a host is written in a data area of each page, starting with the first page of the transfer destination block. When completion of transmission of the write object data is notified from the host the data (D13 to D31, D0 to D7) in the transfer origin block is successively and cyclically transferred to pages of the transfer destination block …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 25, 2003
GrantedNo grant recorded
Term endedAugust 25, 2023
Patent numberCA 2461446 A1
Classification (IPC)G06F12/00 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 25, 2003Term endedAug 25, 2023

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.