Quantity corporation is a US enterprise, which produces data memory devices (drive assemblies) and drives data memory media out.

Quantity developed and originally produced non removable disks. Particularly the Atlas series belonged around 1999 to the world-wide fastest SCSI non removable disks. Quantity was at the time the second largest non removable disk manufacturer of the world. Already 1994 bought "disc and tape division", among other things also the DLT Magnetbandtechnik to quantity of the neighbour Digital Equipment corporation (both in Milpitas/California). In October 2000 quantity sold surprisingly its non removable disk section at max gate and kept only the DLT section.

After long searches it comes out that quantity surprisingly holds a only one important patent, but only the world-wide trademark law and/or registered trade mark at the Logos "DLT and "SDLT" at the whole DLT technology not. The entire with quantity is based only on the patent of Fujifilm on their ATOMM volume technology. Quantity and Fujifilm divide the marketing, however Maxell may manufacture this tape material without license costs. All different must pay at quantity. Imation (formerly 3M company) had lost a process against quantity 2002 and itself united with quantity allegedly in a friendly way and produced now as a third company world-wide DLT and S-DLT media.

Quantity came into the criticism to place high demands for license on OEMs and/or licensees. On the other hand and/or stands precise control of many years of the quality of the drive assemblies as well as the tape material stood. Quantity bought toward end of the yearly 2004 the Tape Divison of Seagate (those was separated still briefly before and renamed to Certance), in order to be able to offer also the LTO technology.

Quantity DLT technology enjoys a good reputation in the data processing concerning the reliability.

Related links

• http://www.quantum.com/de - German-language homepage
• http://www.useddlt.com/die-firma-quantum.0.html

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