TOA History

  • From 1934
  • From 1960
  • From 1960
  • From 1970
  • From 1980
  • From 1990
  • From 2000
  • From 2010

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Product history

Company history

Historic events

1959

CA-106

ER-301

CA-106 and CA-112 transistor amplifiers for automobiles developed.

TOA headquarters move to a new three-story ferro-concrete building equipped with a complete anechoic chamber.

Isewan Typhoon hits Central Japan, resulting in over 5,200 casualties.

Bell Laboratories of the United States announces PN-junction type transistors.

1958

TOA is recognized by MITI (Japan's Ministry of International Trade and Industry) as a model rationalized factory for small and medium enterprises.

TOA receives the Director-General of Small and Medium Enterprises Agency prize.

The second-generation ER-58 transistorized megaphone is released and well received.

History Topics

Transistor Megaphone Development Backstory

ER-58 transistorized megaphone

Third Asian Games held in Tokyo.

First domestic stereo record put on the market.

1957

ER-57

RA-7

Japan's first transistorized megaphone, the ER-57, is developed.

History Topics

First in the World, First in Japan

ER-57 transistorized megaphone catalog

TOA NEWS, a company bulletin intended for overseas customers, debuts

NHK commences FM radio broadcasting.

NHK and Nippon Television Network Corporation begin experimental color television broadcasting.

Sputnik 1, Earth's first artificial satellite, launched into orbit by the Soviet Union.

1956

HW-7

The EM-202 electric megaphone begins volume exports to the United States.

First floor of the ferroconcrete head office building under construction.

Former headquarters building in Kobe

Entire Tokaido Line electrified.

Melbourne Olympics.

Japan's entry into the United Nations approved by the U.N. general assembly.

1955

PA-1 and VA-5 portable amplifiers, CM-10 microphone and TS-5A speaker sold in a complete package.

First domestically produced transistor radios put on the market.

First Asian-African Conference held in Bandung, Indonesia.

1954

EM-202

Tokyo Office established.

EM-202, the world's first electric megaphone, developed.

EM-202 electric megaphone catalog

"Three Guarantees" basic management policy established.

History Topics

Progress toward independent management

Toyamaru train ferry sunk by Typhoon No. 15 in the Tsugaru Straight between Aomori and Hakodate with 1,698 casualties.

First domestically produced transistors sold.

1953

PA-1

DM-60

Commencement of trade with India.

Exports to India begin

NHK television broadcasting commences in Tokyo.

1952

Helsinki Olympics.

1951

TS-30L U

First TOA horn speaker catalog

Commercial radio broadcasting begins in Japan.

Treaty of San Francisco and Security Treaty signed by Japan and the U.S.

1950

TS-25L H

DM-52

Korean War breaks out.

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About TOA

TOA is a company established in 1934, in Kobe, Japan. We provide innovative solutions and products centering those which provide sound. What TOA values is people’s smile. With more than 30 locations, we contribute to create a safe and reliable society globally with excitement, supporting the needs of local community.