UEDA Japan Radio Co., Ltd.

UEDA Japan Radio Co., Ltd. (UJRC) is a Japanese manufacturing company based in Ueda, Nagano Prefecture. Its origins lie in the radio equipment business: in December 1942, ahead of building a Japan Radio Co., Ltd. plant in Ueda, an industrial training institute was opened in Shinzanmachi, Ueda, where skills training and production of radio components began. A factory was completed at the present site in April 1943, initially making aircraft radio components, and later aircraft direction finders and airborne radio transceivers. The plant was temporarily closed at the end of the war in August 1945 and reopened in April 1946 after permission to convert to civilian production. In October 1949, under the Enterprise Reconstruction and Reorganization Act and the Excessive Economic Power Deconcentration Act, Ueda Japan Radio Co., Ltd. was newly established as the second company of the former Japan Radio Co., Ltd., with capital of 7 million yen and 190 employees, making shipboard radio, communications equipment, measuring instruments and radio transmitters. Over the following decades UJRC expanded its Ueda manufacturing base with successive plant buildings, a company cafeteria, a welfare hall, and additional sites such as the Tokura plant (1980), the Oya plant (1980), the Nagase plant (1988) and the Komaki plant (1988), along with affiliated companies including Nichimu Kogei (1980), Asashina Nichimu (1988) and Ueda Nichimu General Business Service (2001). It opened a Tokyo branch office in 1983 and reorganized its Tokyo liaison office into a Tokyo sales office in 1992, later strengthening sales from Tokyo while also establishing a Ueda sales office in 1996. The company marked its 30th anniversary in 1979 and its 50th anniversary in 1999. Today UJRC positions itself around "Medical & Wireless Solutions." Its business fields include a medical business, ODM/OEM services and production operations. Its product lineup covers medical products such as piezoelectric ceramics and ultrasonic medical transducers and probes, as well as wireless solutions for medical products. It also offers a care-monitoring system ("Mamottene") for hospitals and nursing facilities and a sniffer-type portable gas leak detector. The company holds medical device manufacturing licenses and ISO certifications, including ISO 9001, ISO 14001 and ISO 13485, and in 2012 moved its ISO 9001 and ISO 13485 certification bodies from JQA to TUV Rheinland Japan to support growing overseas customers. Its support documentation lists EU declarations of conformity for wireless medical components such as telemetry transmitters, wireless foot switches, wireless base units, UWB transceivers and wireless printer adapters, and instructions for use for a continuous patient monitoring system.

UEDA Japan Radio Co., Ltd. traces its roots to the radio equipment operations of Japan Radio Co., Ltd. in Ueda, Nagano. In December 1942, before the construction of a Japan Radio Co., Ltd. Ueda plant, an industrial training institute was opened in Shinzanmachi, Ueda, where skills training and production of radio components began. In April 1943, two factory buildings were completed at the present site, and production focused mainly on aircraft radio components; further new plants were built in 1944 and 1945, adding aircraft direction finders and airborne radio transceivers, with output gradually increasing. In August 1945 the plant was temporarily closed at the end of the war, and in April 1946 it reopened after obtaining permission to convert to civilian production. In October 1949, under the Enterprise Reconstruction and Reorganization Act and the Excessive Economic Power Deconcentration Act, Ueda Japan Radio Co., Ltd. was newly established as the second company of the former Japan Radio Co., Ltd., with capital of 7 million yen and 190 employees. It manufactured shipboard radio, communications equipment, measuring instruments and radio transmitters. As production expanded, the company completed the 101 plant (two stories) and a new cafeteria seating 250 people in January 1967, and a welfare hall (two stories, total 662 m²) in June 1971. In May 1974 it completed the 105 plant (three stories, total 3,088 m²) to introduce advanced machine tools and labor-saving equipment. In September 1979, marking its 30th anniversary, it completed the 103 plant (three stories, total 3,088 m²), establishing a mass-production system. In May 1980 it opened the Tokura plant (469.28 m²; closed in January 2025) and in June 1980 moved part of its development division to Oya in Ueda as the Oya plant, and established Nichimu Kogei Co., Ltd. (476.28 m²). In September 1981 it completed the 102 plant (four stories, total 4,167 m²) and introduced a large computer. In February 1983 it opened a Tokyo branch office within Japan Radio's Mitaka Works as a sales and engineering base. In February 1985 it completed phase one of the 106 plant (four stories, total 4,700 m²), and in August 1985 the administration building (two stories, total 798 m²). In November 1986 it opened a Tokyo liaison office as a base for sales engineering and materials procurement. In February 1988 it opened the Nagase plant (282.87 m²; closed in October 2023) and established Asashina Nichimu Co., Ltd. (3,160.25 m²); in August 1988 it opened the Komaki plant (two stories, total 1,297.86 m²). In May 1989 it completed phase two of the 106 plant (five stories, total 9,327 m²). In September 1992 the Tokyo liaison office was reorganized into the Tokyo sales office; in November 1992 the roadside green belt received the first Ueda City Urban Landscape Award; and in December 1992 the Komaki plant was expanded (three stories, total 3,099.48 m²). On the quality and environmental front, the company obtained ISO 9002 certification in October 1993 and ISO 9001 certification in December 1995. In July 1996 it moved the core of its sales headquarters to the Tokyo sales office, strengthening it, and simultaneously opened a Ueda sales office. In October 1999 it marked its 50th anniversary and obtained ISO 14001 certification. In April 2001 it established Ueda Nichimu General Business Service Co., Ltd. In August 2006 it obtained ISO 13485 certification. In December 2009 it obtained a medical device manufacturing license and a Class 2 medical device manufacturing and sales license. In February 2010 it obtained a medical device repair license. In September 2012, to expand its overseas customer base, it transferred its ISO 9001 and ISO 13485 certification bodies from JQA (Japan Quality Assurance Organization) to TUV (TUV Rheinland Japan). In the present day, UJRC organizes its business around "Medical & Wireless Solutions," with a medical business, ODM/OEM services and production operations. Its product range includes piezoelectric ceramics, ultrasonic medical transducers and probes, wireless solutions for medical products, a care-monitoring system for hospitals and nursing facilities, and a sniffer-type portable gas leak detector. Its support documentation includes EU declarations of conformity for wireless medical components and instructions for use for a continuous patient monitoring system.

• Opened Ueda Industrial Training Institute in Shinzanmachi, Ueda, ahead of building the Japan Radio Co., Ltd. Ueda plant; began skills training and production of radio components.

• Completed two factory buildings at the present site; began mainly producing aircraft radio components.

• Plant temporarily closed at the end of the war.

• Reopened the plant after obtaining permission to convert to civilian production.

• Ueda Japan Radio Co., Ltd. established as the second company of the former Japan Radio Co., Ltd., with capital of 7 million yen and 190 employees.

• Completed the 101 plant (two stories) and a new cafeteria seating 250 people.

• Completed the welfare hall (two stories, total 662 m²).

• Completed the 105 plant (three stories, total 3,088 m²) to introduce advanced machine tools and labor-saving equipment.

• On its 30th anniversary, completed the 103 plant (three stories, total 3,088 m²), establishing a mass-production system.

• Opened the Tokura plant (469.28 m²; closed January 2025).

• Moved part of the development division to Oya, Ueda, as the Oya plant; established Nichimu Kogei Co., Ltd. (476.28 m²).

• Completed the 102 plant (four stories, total 4,167 m²) and introduced a large computer.

• Opened a Tokyo branch office within Japan Radio's Mitaka Works as a sales and engineering base.

• Completed phase one of the 106 plant (four stories, total 4,700 m²).

• Completed the administration building (two stories, total 798 m²).

• Opened a Tokyo liaison office as a base for sales engineering and materials procurement.

• Opened the Nagase plant (282.87 m²; closed October 2023) and established Asashina Nichimu Co., Ltd. (3,160.25 m²).

• Opened the Komaki plant (two stories, total 1,297.86 m²).

• Completed phase two of the 106 plant (five stories, total 9,327 m²).

• Reorganized the Tokyo liaison office into the Tokyo sales office.

• The roadside green belt received the first Ueda City Urban Landscape Award.

• Expanded the Komaki plant (three stories, total 3,099.48 m²).

• Obtained ISO 9002 certification.

• Obtained ISO 9001 certification.

A Nagano-based engineering manufacturer positioning itself around "Medical & Wireless Solutions," combining piezoelectric ceramics and ultrasonic transducer technology with wireless medical device modules and ODM/OEM services.

• Piezoelectric ceramics

• Ultrasonic medical transducers and probes

• Wireless solutions for medical products

• DTF-251 Telemetry Transmitter

• DTF-253 Wireless Foot Switch

• DTF-255 Wireless Base Unit

• DTG-108 UWB Transceiver

• DTG-114 Wireless Printer Adapter

• FSY-237 Continuous Patient Monitoring System

• Care-monitoring system "Mamottene"

• Sniffer-type portable gas leak detector

1. 1UJRC上田日本無線 official websiteujrc.co.jp
2. 2沿 革 | 会社概要 | UJRC上田日本無線ujrc.co.jp
3. 3メディカル | UJRC上田日本無線ujrc.co.jp
4. 4サポートドキュメント | UJRC上田日本無線ujrc.co.jp
5. 5UEDA Japan Radio Co., Ltd. (Japan) — Wikidatawikidata.org