DID Co., Ltd.

1946: Established Daishin Chemical Engineering Co., Ltd. and began production of tabletop spot welding machines.

Founded: 1966-06-01

1952: Converted to a corporation.

1962: Renamed to Daishin Electric Industrial Co., Ltd. and began contract development and production of tabletop exchange machines and telephone equipment for the Electric Power Public Corporation.

1976: Obtained approval from the Ministry of Health, Labour and Welfare to manufacture medical equipment.

1978: Began contract development and production of ECG and heart sound ECG for Tokyo Shibaura Electric.

1979: Opened the Nasu facility in Kamimachi, Yaita City, Tochigi Prefecture, following expansion of medical device production.

1981: Opened a new factory in Kataoka, Yaita City, and relocated the Nasu facility.

1984: Developed and began production of a commercial facial beauty device.

1989: Began production of a sector-electronic scanning ultrasonic diagnostic device for Toshiba.

1994: Obtained ISO 9002 certification for the quality management system at the Nasu facility.

1997: Established the Ota-Hara factory in Haba, Ota-Hara City, expanding the scope of the quality management system from ISO 9002 to ISO 9001.

2001: Renamed to Deed Corporation (DEED CORPORATION) and obtained permits for medical device repair and import-sales operations.

2002: Presented the opposing QD array coil for MR devices at the Japanese Society of Radiological Technology conference.

2004: Developed and began production of an embedded gel warmer for ultrasonic diagnostic devices.

2005: Obtained a permit for Class II medical device manufacturing and sales.

2006: Obtained a permit for advanced medical device sales and certification of the ISO 13485 medical device quality management system.

2007: Developed and began production of the cooling therapy device 'CureCool'.

2008: Established the Green Procurement Guidelines.

2009: Developed and began production and sales of the gate-type magnetic sensor 'MagFie'.

2010: Obtained a patent for the 'Medical Warm Bottle Holder' (No. 4651304) and developed and began production and sales of an embedded temperature-adjustable gel warmer.

2012: Obtained a U.S. patent (US 8115480 B2) for the magnetic detector.

2013: Developed and began production of the strong magnetic field alarm 'MagWatcher' and 'MagWatcher Plus'.

2014: Obtained a patent (No. 5658106) for the magnetic radiation measurement device.

2015: Exhibited the pole-type magnetic sensor 'MagFie 2' at the International Medical Imaging Expo, developed and began production and sales of the pole-type magnetic sensor 'MagFie 2'.

2017: Obtained patents (No. 6152008) for the magnetic detector vector detection and (No. 6259981) for the magnetic detector four-post detection method.

2018: Obtained ISO 14001:2015 certification for the environmental management system and established and began operating information security management policies.

2021: The technology for reducing metal (magnetic) adsorption accidents in MRI diagnostic devices was recognized as a Frontier Company by Tochigi Prefecture.

2022: Started contracting repair services for Company S, including digital appliances and solar-related products.

2024: Developed the pole-type magnetic sensor "Magfee AXIA" and began production/sales; started contract inspection for Company V.

2025: Registered as a company promoting Tochigi SDGs.

2026: Implemented an environmental management system based on ISO14001:2015 requirements, transitioning to a self-declaration system.