| 1946 |
寺崎敏個人経営により三陽電線工業所を創設 |
| 1946 |
Satoshi Terazaki founded Sanyo Densen Kogyosho under private management. |
| 1948 |
三陽電線工業株式会社と改称。法人組織となす |
| 1948 |
Changed the company name to Sanyo Densen Kogyo KK. Became an incorporate organization. |
| 1948-12-22 |
Established : December 22, 1948 |
| 1950 |
電気用品取締規則 第2、121号を持って絶縁電線の製造免許を受ける |
| 1950 |
Acquired a manufacturing license for insulation wires based on Article 2 (121) of the electric equipment regulation. |
| 1961 |
埼玉県戸田市喜沢に戸田工場を新設 |
| 1961 |
Established a new factory, Toda Plant, in Kizawa, Toda City, Saitama Prefecture. |
| 1967 |
戸田工場の増改築とあわせ、営業部門を本社より移転 |
| 1967 |
Relocated the sales department from the main office in accordance with additions and modifications to the Toda Plant. |
| 1970 |
Newly established Urawa Plant with company housing in Bessho, Urawa City. |
| 1973 |
三陽電工株式会社に改称。資本金10,000,000円に増資 |
| 1973 |
Changed the company name to Sanyo Denko Co., Ltd. Increased the capital to 10M yen. |
| 1978 |
Traffic Safety and Nuisance Research Institute, railway vehicle materials. Passed combustion testing and flame-retardant testing. |
| 1980 |
南、北極向耐寒性極地ケーブルの開発に参加 |
| 1980 |
Participated in development of cold-resistant arctic cables for the South and North Poles. |
| 1981 |
深海測定用ケーブルの開発によりシートピア計画に参加 |
| 1981 |
Participated in development of deep sea measuring cables, called the Seatopia Plan. |
| 1983 |
Succeeded in development of high-tension cables for vessels. |
| 1984 |
超高速監視カメラケーブル、米国スペースシャトル「チャレンジャー」号に搭載される |
| 1984 |
Our ultra-high-speed monitoring camera cables were installed in the Space Shuttle “Challenger” in the United States. |
| 1989 |
寺崎博之が社長に就任 |
| 1989 |
Hiroyuki Terazaki assumed the post of President. |
| 1995 |
UL規格取得 ULケーブルの受注生産を開始 |
| 1995 |
Certified by the UL standards and started build-to-order manufacturing of UL cables. |
| 1997 |
ハイブリット自動車用ケーブルの開発に協力 |
| 1997 |
Cooperated for development of hybrid vehicle cables. |
| 2001 |
資本金10,400,000円に増資 |
| 2001 |
Increased the capital to 10.4M yen. |
| 2003 |
窓拭きロボット用ハイテンションケーブルの開発 : 東京国際フォーラムやJR金沢駅新駅舎に採用 |
| 2003 |
Developed high-tension cables for window-cleaning robots. |
| 2003 |
Adopted in buildings of the Tokyo International Forum and the Japan Railway’s new Kanazawa Station. |
| 2005 |
高張力ケーブル、JR東日本などの列車警報装置に採用 |
| 2005 |
Our high-tension cables were adopted by the East Japan Railway Company to be used for warning devices in trains. |
| 2014 |
スピーディな製造管理の実現を目指し、生産・販売・会計管理システムを導入 |
| 2014 |
Introduced production / sales / accounting management systems to implement speedy management for manufacturing. |
| 2015 |
各種照明用ケーブル「サンルミナ」シリーズの開発・販売 |
| 2015 |
Developed and released a series of light fixture cables, “SAN-Lumina.” |
| 2016 |
耐高張力電線コードに関する特許2件を取得 |
| 2016 |
戸田工場 一部建屋に耐震補強工事を実施 |
| 2016 |
小林 潤が社長に就任 |
| 2016 |
Obtained two patents on high-tension resistant wire cord. |
| 2016 |
Jun Kobayashi assumed the post of President. |
| 2017 |
ケーブル一体型多点温度センサ「サンサーモ」の開発・販売 : 編組線を用いた識別技術に関する特許2件を取得 |
| 2017 |
Developed and released of cable-integrated multi-point temperature sensor “SAN-Thermo”. |
| 2017 |
Obtained two patents on identification technology using braided wires. |
| 2021 |
井川径成が社長に就任 |
| 2021 |
Michinari Ikawa assumed the post of President. |
| 2024 |
12月に減資を実施（ 資本金1,000万円） |
