List of defunct hard disk manufacturers hard disk drives . Most of that industry has vanished through bankruptcy or mergers and acquisitions . None of the first four entrants continue in the industry today. As shown in the graphic surviving manufacturers are Seagate , Toshiba and Western Digital all of whom grew at least in part through mergers and acquisitions.Partial list of defunct manufacturers Some of the defunct manufacturers include:Alps America Amcodyne Ampex Anelex Corp. Areal Technology – acquired by Tomen Corp in 1993 Atashi Technology, Inc. Aura Associates Avatar Systems BASF Brand Technologies Bryant Computer Products Bull Burroughs Corporation – merged with Sperry Corporation to form Unisys in 1986 C. Itoh Electronics Castlewood Systems Caelus Memories, Inc. CalComp Calluna Technologies Cardiff Century Data Cogito Comport Computer Memories Inc. – left industry in 1986 Computer Memory Devices, Inc. Conner Peripherals – merged with Seagate in 1996 Control Data Corporation / Imprimis Technology – sold hard disk drive business to Seagate in 1989 Cornice LLC – bankrupt in 2007 Data General Corporation Data Products Corp. Data Recording Instruments Data Tech Memories Diablo Systems - became Diablo Data Systems in 1972 Digital Equipment Corporation – sold hard disk drive business to Quantum Corporation in 1994 Disc Tech One Disctron DMA DZU – converted from government-owned to private, and sold to Videoton in 1999 Ecol. 2 Emulex Epson Espert ExcelStor Technology – left industry Fuji Electric Fujitsu – HDD division acquired by Toshiba in July 2009 General Electric – Gigastorage GS Magicstor, Inc. – manufacturing 1-inch drives Hewlett-Packard - 1976 to 1996, left industry Hitachi Global Storage Technologies – 2002 merger of Hitachi and IBM disk drive businesses, sold to Western Digital in 2012 with part of 3.5″ manufacturing facilities going to Toshiba Hokushin Electric Works Honeywell Bull Hyosung IBM – hard disk drive business acquired by Hitachi Global Storage Technologies in 2002 Information Storage Systems Acquired by Itel, then Univac and finally CDC Integral Peripherals – first rigid 1.8" drive; bankrupt in 1998 International Memories, Inc. Discontinued manufacturing in early 1985. Iomec Iomega – left industry ISOT/ИЗОТ Josephine County Technology Ceased manufacturing in 1988. JT Storage – bankrupt in 1999 JVC – left industry Kalok – bankrupt in 1994 Kyocera Electronics, Inc. LaPine Technologies Librascope Marshall Laboratories Matsushita - left industry in 2004 Maxtor – acquired by Seagate in 2006 Memorex – acquired by Burroughs 1981 and then merged into Unisys 1986; HDD division shut down in 1988 Microcomputer Memories – Chapter 7 bancrutpcy in 1987 Micropolis Corporation – bankrupt in 1997 Microscience International – bankrupt in 1992 MiniScribe – bankrupt and then acquired by Maxtor in 1990 Ministor Peripherals – first mobile 1.8" drive; bankrupt in 1998 Mitsubishi – left industry Mitsumi Electronics Corporation NCR Corporation NEC – left industry Newberry Data Nippon Electric Industry Co. Ltd. AKA as Densei in Japan was 34.5% owned by NEC . Stopped manufacturing HDDs in December 1986 . Nippon Peripherals Nomaï Okidata Olivetti Orca Technology Corporation Otari 1982-1986 Pertec Computer Philips Plus Development – Subsidiary of Quantum; created Hardcard; absorbed back into Quantum 1992 Potter Instrument PrairieTek – first 2.5" rigid HDD; bankrupt in 1991 Priam Corporation – 1978-1989, became Priam Systems Corporation in 1990 and sold product line to Prima International in 1991 Peripheral Technology, Inc. Quantum Corporation – sold hard disk drive business to Maxtor in 2001 Raymond Engineering Ricoh Rodime – first 3.5" rigid HDD; shut down manufacturing in 1991; licensed its patents until the patent business was sold for $1.5M in July 2003. The company was then the subject of a reverse merger and became Sportech PLC . Rotating Memory Systems, Inc. Acquired by CCT in 1982 Sagem Samsung – HDD business acquired by Seagate for $1.4 billion in 2011 Seiko Epson Sequel Shugart Associates – Acquired by Xerox in 1977 and shut down in 1986. Siemens Sony Storage Technology Corporation – left industry Syquest – bankrupt in 1998; some patents acquired by Iomega . Re-emerged selling cartridges for their previously-discontinued products. Tandon Corporation – acquired by Western Digital in 1988 Teac America, Inc. Texas Instruments Tokico Tulin Corporation – bankrupt Vertex Peripherals – acquired by Priam Corporation in 1985 Xebec YE-Data
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