| 1944 |
Established Nakayo Communication Equipment Manufacturing Co., Ltd. in Setagaya Ward |
| 1958 |
Received the Deming Prize for Excellence in Small and Medium Enterprise |
| 1963 |
Started operations at Maebashi Factory in Gunma Prefecture |
| 1967 |
Became a comprehensive manufacturer of telephones |
| 1969 |
Established Nakayo Electric Construction Co., Ltd., a related sales and construction company |
| 1971 |
First delivered electronic switching equipment to the Japan Telegraph and Telephone Public Corporation |
| 1974 |
Renamed to Nakayo Communication Equipment Co., Ltd. and listed on the Second Section of the Tokyo Stock Exchange |
| 1975 |
Established Kansai Nakayo Electric Construction Co., Ltd. |
| 1977 |
Merged Nakayo Electric Construction Co., Ltd. and Kansai Nakayo Electric Construction Co., Ltd. to form Nakayo Electronic Service Co., Ltd. |
| 1980 |
Microcomputer-controlled electronic exchange system received Japan's first certification from the Japan Telegraph and Telephone Public Corporation |
| 1980 |
Microcomputer-controlled electronic internal exchange received the first certification in Japan from the Telecommunications Public Corporation. |
| 1982 |
Opened Shibuya Operations Headquarters |
| 1983 |
Increased capital to 1,513,070,000 yen |
| 1984 |
Started operations at Gunma Factory and increased capital to 4,990,750,000 yen |
| 1985 |
Relocated headquarters to Shibuya Ward |
| 1991 |
Opened North Japan Business Office |
| 1995 |
Certified with the ISO 9001 Quality Management System by the Japan Quality Assurance Organization (JQA) |
| 1998 |
Certified with the ISO 14001 Environmental Management System by the Japan Environmental Certification Organization (JECO) |
| 1999 |
Established the West Japan Branch |
| 2000 |
Established Zhongyu Hong Kong Limited (Hong Kong) |
| 2004 |
Celebrated 60th anniversary of founding |
| 2005 |
Listed on the First Section of the Tokyo Stock Exchange |
| 2006 |
Founded NYC Solutions Inc. as a designated dealer for NTT East Japan and NTT West Japan information equipment |
| 2006 |
Established NYC Solutions Inc. as an authorized dealer of NTT East Japan and NTT West Japan information equipment. |
| 2009 |
Relocated headquarters to Maebashi City, Gunma Prefecture |
| 2010 |
Obtained ISO 27001 Information Security Management System certification from JQA (Tokyo Office registered) |
| 2010 |
Obtained ISO27001 information security management system certification from the Japan Quality Assurance Organization (JQA) (registered office: Tokyo Office). |
| 2013 |
Relocated Tokyo Office from Shibuya Ward to Minato Ward. Obtained medical device manufacturing (general) permit for headquarters and business headquarters (Maebashi). NYC-iF series received the 2013 Good Design Award |
| 2013 |
Relocated Tokyo Office from Shibuya Ward to Minato Ward. The headquarters and business headquarters (Maebashi) obtained a general medical device manufacturing license. NYC-iF series received the 2013 Good Design Award. |
| 2014 |
Celebrated 70th anniversary. Started operation of new manufacturing building at Maebashi Factory. Changed company name to Nakayo Corporation |
| 2014-05 |
Our group celebrated its 70th anniversary in May 2014, changed its name from Nakayo Communications Equipment to Nakayo, and established a shared corporate philosophy among all employees to move forward with a firm philosophy and a clear path. We create value ahead of societal needs as good corporate citizens and contribute to social development. |
| 2014-05 |
Our group celebrated its 70th anniversary in May 2014, changed its name from Nakayo Communications Equipment to Nakayo, and established a shared corporate philosophy among all employees to move forward with a firm philosophy and a clear path. |
| 2014-11-07 |
[As a good corporate citizen] Date of establishment: November 7, 2014 |
| 2014-11-07 |
Established the "Corporate Philosophy" on November 7, 2014. |
| 2015 |
Nakayo Electronics Service Inc. launched optical fiber service "Nakayo Hikari" |
| 2015 |
Nakayo Electronics Service Co., Ltd. launched the optical fiber service "Nakayo Hikari". |
| 2015-08-24 |
Revision date: August 24, 2015 |
| 2015-08-24 |
Set the "Revision Date" on August 24, 2015. |
| 2017 |
The "Emergency Call System" received the 2016 Intercom of the Year Special Award. NYC-Si series received the 2017 Japan Packaging Contest Proper Packaging Award |
| 2017 |
The "Emergency Call System" received the 2016 Intercom of the Year Special Award. NYC-Si series received the 2017 Japan Package Contest Proper Packaging Award. |
| 2018 |
Received the 2018 Intercom of the Year System Development Contribution Award. Launched "Wireless Manufacturing/Equipment Data Collection System" using IoT sensing technology. Released "Building NYC" |
| 2018 |
Received the 2018 Intercom of the Year System Development Contribution Award. Launched "Manufacturing/Equipment Data Wireless Collection System" using IoT sensing technology. Released "Building NYC". |
| 2018-05-07 |
Date of establishment: May 7, 2018 |
| 2018-05-07 |
Established the "Employee Action Guidelines and Code of Conduct" on May 7, 2018. |
| 2019 |
Celebrated 75th anniversary. Launched design telephone "Shimoru Neo" |
| 2019 |
Celebrating its 75th anniversary. Launched the design telephone "Shimoru Neo". |
| 2020 |
Renamed Tokyo Office to Tokyo Headquarters |
| 2021 |
Launched ozone generator "Air Clean NYC" |
| 2021 |
Launched the ozone generator "Air Clean NYC". |
| 2022 |
Launched "Micro Server" |
| 2022 |
Launched "Micro Server". |
| 2023 |
Absorbed Nakayo Electronics Service Inc. and received excellence award in the dual support division of Gunma Ikiiki G Company |
| 2023 |
Merged with Nakayo Electronics Service Co., Ltd. and received an excellence award in the "Gumma Prefecture Lively G Company" support division. |
| 2025 |
Delisted from the stock exchange and became a wholly owned subsidiary of Ai Holdings Co., Ltd. |
