Oki Electric Industry
Japanese information and communications technology company specializing in telecommunications, enterprise printing, financial equipment, and related systems.
Last updated August 31, 2026
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Overview
Oki Electric Industry Co., Ltd., commonly known as OKI, is a Japanese information and communications technology company with roots in the earliest development of Japan's telephone industry. Founded by engineer Kibataro Oki in 1881, the company produced Japan's first domestically made telephone and subsequently became an important supplier of telephone equipment, switching systems, business communications hardware, and related components. Its long history mirrors the development of Japanese communications infrastructure, from manually operated and battery-based telephone exchanges to automatic switching, facsimile, mobile communications, digital networks, and enterprise information systems. During the late nineteenth and early twentieth centuries, OKI concentrated on telecommunications manufacturing and benefited from the expansion of telephone service in Japan. It supplied equipment for public and private networks, including private branch exchanges, telephone sets, wires, and switching systems. Wartime demand expanded production, while the postwar reconstruction period created a new requirement for telephone sets and exchanges damaged or destroyed during the conflict. The company established the present Oki Electric Industry Co., Ltd. in 1949 and listed its shares on the Tokyo Stock Exchange in 1951. Its Type-4 telephone became associated with Japan's postwar reconstruction, and the company continued developing switching technologies and business communications equipment. From the 1960s through the 1980s, OKI broadened its scope from telecommunications into electronics, computing, office equipment, financial automation, and printers. It developed teletypewriters, general-purpose computers, input-output devices, electronic printers, facsimile machines, and equipment for banks and other financial institutions. OKI's financial-technology portfolio included cash dispensers, automated depositors, and automated teller machines. In 1982, it introduced a cash-recycling ATM capable of using deposited banknotes for subsequent withdrawals, an important development in branch automation. The company also pursued wireless communications, including an automobile telephone system developed with Bell Laboratories in the 1970s. Printing became a major part of the business through Oki Data Corporation, established as a printer and facsimile subsidiary in 1994 after the business had initially been developed through a Japan-U.S. joint venture formed in 1972. OKI-branded products have included dot-matrix, impact, thermal-transfer, laser, color, monochrome, multifunction, and production printers, as well as associated software, applications, services, and consulting. In North America, Oki Data America marketed professional printing products including the proColor line for graphic-arts and production applications. The American subsidiary ceased sales of OKI-branded hardware in the United States in March 2021, with distribution subsequently handled under another brand. In the 1990s and 2000s, OKI presented itself increasingly as a provider of network and communications solutions rather than only a hardware manufacturer. It introduced mobile phones, IP communications servers, carrier-grade communications systems, and technologies related to vehicle communications and electronic toll collection. The company also pursued business selection and concentration: its semiconductor operation was separated and sold to Rohm on October 1, 2008. Today, OKI's activities are centered on information and communications systems, enterprise and professional printing, financial and mechatronic equipment, network-related solutions, and selected infrastructure technologies. The brand is primarily positioned in business-to-business and institutional markets, where reliability, specialized workflows, transaction processing, and long equipment lifecycles are more important than mass-market consumer recognition.
History
Oki Electric Industry traces its origins to Kibataro Oki, an engineer who had participated in early Japanese efforts to reverse-engineer telephone receivers. In January 1881 he established Meikosha, the enterprise that later became OKI. The company manufactured Japan's first domestically made telephone in the same year. It also displayed a lacquer-coated wire that received a silver award at the 1885 International Inventions Exhibition in London, demonstrating an early ambition to compete in communications technology beyond Japan. The company's initial growth was tied to the spread of telephone service and national telephone-expansion programs. OKI supplied telephone instruments, private branch exchanges, wires, and switching equipment, and increasingly worked on automatic exchanges as telephone use expanded. Asano Soichiro, associated with the Asano zaibatsu, became chairman in 1912. During the First World War, demand for telephone infrastructure and private branch exchanges increased, supporting production and overseas business. From approximately 1920, the company made advances in common-battery switchboards. In the late 1930s, its factories were also directed toward military production, which expanded capacity but reshaped the business and its affiliated-company structure. After the Second World War, OKI faced the task of rebuilding telecommunications infrastructure and replacing damaged telephone sets and exchanges. On November 1, 1949, Oki Electric Industry Co., Ltd. was established as the successor to the earlier company. Its shares were listed on the Tokyo Stock Exchange in November 1951. Around the same time, OKI began mass production of the Type-4 telephone, later remembered as a symbol of postwar reconstruction. In 1956, it produced a 100-line Ericsson-type crossbar switching system for commercial use. From the 1960s, OKI developed beyond traditional telecommunications. It introduced business machines including teletypewriters and perforation equipment, and in 1961 launched the OKITYPER-2000 electric teletypewriter. The company also developed computers such as the OKITAC-5090, described in the reference material as Japan's first domestically produced computer using core memory. In 1964, it developed OKISAVER, an online-deposit terminal supplied to financial institutions. During the 1970s, OKI added input-output equipment, electroprinters, dot printers, cash dispensers, automated depositors, and ATMs, establishing a durable connection between its electronics business and banking automation. International telecommunications activity expanded during the 1970s into the Middle East, Central and South America, and other Asian markets. In 1972, a Japan-U.S. joint venture in Philadelphia was formed to develop the DP100 dot printer; this business later became associated with Oki Data. In 1975, OKI and Bell Laboratories developed an automobile telephone system, laying groundwork for later wireless and vehicle-communications work. The company entered the personal-computer market with the IF-800 series in 1980 and expanded into facsimile equipment. In 1982, it introduced a cash-recycling ATM that could immediately reuse deposited banknotes for withdrawals. The economic downturn that followed Japan's asset-price bubble affected OKI in the 1990s. In December 1990, the company marketed the OKI 900 mobile phone. In October 1994, it separated its printer and facsimile activities into Oki Data Corporation. As the Internet spread, OKI increasingly emphasized network solutions. Its later products included IP communications servers, carrier-grade communications platforms, and systems for next-generation networks. The company released the IP CONVERGENCE Server SS9100 in 2004 and the Center Stage NX5000 in 2006. The 2000s also brought portfolio restructuring. OKI spun off and sold its semiconductor business to Rohm on October 1, 2008. Oki Data continued developing professional printing products, including impact, color, monochrome, multifunction, and production systems, while OKI retained broader activities in communications, information systems, mechatronics, and financial equipment. OKI has used sponsorships and naming-rights agreements to build international visibility, including football and rugby partnerships. In the United States, Oki Data America ended sales of OKI-branded hardware in March 2021, although the company’s wider international business and corporate brand continued. The modern OKI identity therefore combines a nineteenth-century telecommunications heritage with specialized enterprise printing, banking automation, communications systems, and industrial information technology.
- 2021
Oki Data America ended U.S. OKI hardware sales
[1]Oki Data America stopped selling OKI-branded hardware in the United States on March 31, with later distribution handled under another brand.
- 2008
Semiconductor business sold to Rohm
[1]OKI transferred its semiconductor business to Rohm Company on October 1 as part of a portfolio-concentration strategy.
- 2006
Center Stage NX5000 released
[1]The company released the Center Stage NX5000 carrier-grade communications server for next-generation networks.
- 2004
IP CONVERGENCE Server SS9100 released
[1]OKI released the SS9100 IP communications server, described in the reference material as the first Microsoft .NET-compliant server in its industry category.
- 1994
Printer and facsimile business separated
[1]OKI spun off its printer and facsimile operations into Oki Data Corporation.
- 1990
OKI 900 mobile phone marketed
[1]The company marketed the OKI 900 mobile phone, which became known for its advanced diagnostic and debugging features.
- 1982
Cash-recycling ATM introduced
[1]OKI introduced a cash-recycling ATM that could make deposited banknotes available for subsequent withdrawals.
- 1980
IF-800 business computer series launched
[1]OKI introduced the IF-800 series as part of its expansion into business-use personal computers.
- 1975
Automobile telephone system developed
[1]OKI and Bell Laboratories developed an automobile telephone system, marking an important step in the company's wireless-communications work.
- 1972
Oki Data joint venture established
[1]OKI formed a Japan-U.S. joint venture in Philadelphia to develop the DP100 dot printer, creating the foundation for its later printer subsidiary.
Products and positioning
A Japanese B2B technology brand focused on dependable communications infrastructure, professional printing, financial automation, and specialized information systems.
Telecommunications equipment · 1881
Telecommunications and switching systems
Telecommunications was OKI's original and foundational business. Its historical range included telephone sets, private branch exchanges, common-battery switchboards, crossbar switching systems, telephone wires, and equipment for public and private networks. Later communications products extended into IP convergence, carrier-grade servers, next-generation network platforms, and related information systems.
Business printing · 1972
OKI professional printers
OKI's printer portfolio has included dot-matrix and other impact printers, monochrome and color laser devices, multifunction products, facsimiles, and professional production systems. Through Oki Data and regional subsidiaries, the brand has served offices, transactional environments, graphic-arts users, and print-service providers with hardware, software, workflow tools, and support services.
Digital production printing
ProColor Series
The proColor Series was marketed by Oki Data America as a line of digital production printers for the North American graphic-arts and production market. It was intended for print-service environments and applications requiring controlled, high-quality color output rather than ordinary home or office printing.
Financial automation · 1982
Cash-recycling ATMs
OKI has developed cash dispensers, automated depositors, and automated teller machines for financial institutions. Its 1982 cash-recycling ATM was notable because deposited banknotes could be reused for withdrawals, reducing the need for separate cash-loading operations and linking the company's electronics expertise with branch automation.
Banking terminal · 1964
OKISAVER
Introduced in 1964, OKISAVER was an online-deposit terminal supplied to financial institutions. It formed part of OKI's early move into electronic banking equipment and helped establish a long-running business in transaction terminals and financial automation.
Business computers · 1980
IF-800 series
The IF-800 series was introduced in 1980 as a business-use personal-computer line. It represented OKI's broader shift from conventional telecommunications manufacturing toward office computing, electronic information processing, and business machines.
IP communications · 2004
IP CONVERGENCE Server SS9100
Released in 2004, the SS9100 was an IP communications server designed for converged voice and data environments. The product reflected OKI's effort to reposition itself as a network-solutions provider as enterprise communications moved from dedicated telephony toward software-supported IP infrastructure.
Carrier communications · 2006
Center Stage NX5000
The Center Stage NX5000 was released in 2006 as a carrier-grade communications server intended for next-generation network environments. It represented the company's continued work in large-scale communications platforms and service-provider infrastructure.
Mobile communications · 1990
OKI 900
Marketed in 1990, the OKI 900 was a mobile phone notable for its extensive diagnostic and debugging menu. Its development reflected OKI's participation in wireless communications during the transition from fixed-line telecommunications toward cellular networks.
Controversies
Continued operations in Russia after the invasion of Ukraine
Reference material states that OKI continued operating in Russia after Russia's invasion of Ukraine and had not publicly announced a withdrawal or suspension plan. The material does not provide a dated corporate response or detailed financial information.
Marketing campaigns
- 2005Portsmouth FC sponsorship
United Kingdom
OKI sponsored English Premier League football club Portsmouth from 2005 to 2009, extending its sports-marketing activity in a major international football market.
Outcome. Completed sponsorship period.
- 2003Jubilee Oval naming-rights partnership
Australia
OKI held the naming rights to Jubilee Oval in Kogarah, Sydney, from 2003 to 2008. The venue was the home ground of the St George Illawarra Dragons rugby league team.
Outcome. Naming-rights agreement ended in 2008.
- 1998HSC Montpellier sponsorship
France
OKI sponsored French Ligue 1 football club HSC Montpellier during the 1998–1999 season.
Outcome. Completed sponsorship period.
- 19901. FC Kaiserslautern sponsorship
Germany
OKI was the major sponsor of German football club 1. FC Kaiserslautern from 1990 to 1996, using sports visibility to support international recognition of the corporate brand.
Outcome. Completed sponsorship period.
Brand decisions
2021
Ended U.S. sales of OKI-branded hardwareStrategyBackground
Oki Data America changed its U.S. route to market for printing hardware.
Action taken
Oki Data America ceased selling all OKI-branded hardware in the United States on March 31, 2021, while allowing printer hardware to continue through a distribution partner under another brand.
Aftermath
The change reduced the direct presence of the OKI hardware brand in the U.S. market, although the company's broader international operations continued.
2008
Transferred semiconductor business to RohmM&ABackground
The transaction formed part of OKI's business-selection and concentration program.
Action taken
OKI spun off and sold its semiconductor business to Rohm Company, with the transfer completed on October 1, 2008.
Aftermath
OKI reduced its exposure to semiconductors and concentrated more heavily on communications, information systems, printing, and mechatronics.
1994
Separated printer and facsimile operationsStrategyBackground
OKI was responding to a difficult Japanese economic environment and sought clearer business focus for its printing and facsimile activities.
Action taken
The company established Oki Data Corporation as a separate business for printers and facsimiles.
Aftermath
Oki Data became the principal vehicle for OKI-branded printing products, applications, services, and related consulting.
Recent events
Sources3 sources
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