1900
Annaka Electric Company was established.

1903
Annaka Electric exhibited a wireless transmitter and a 30cm fireworks coil at the 5th Japan Industry Promotion Exposition.

1908
Kyoritsu Electric Company was established by the merger of Sekisan-sha and Abe Electric Wire Company Kyoritsu began mass production of wall and desktop telephones (public phones from 1925 onward)

1912
Annaka succeeded in producing the TYK wireless telephone

1916
Annaka began telegraph service between Toba, Toshijima and Kamijima in Mie Prefecture, using the TYK wireless phone. This was the world's first wireless phone service

1924
Annaka began production of radio receivers, speakers and headphones, following the introduction of radio broadcasting.

1925
Annaka produced Japan's first 500-watt transmitter for Tokyo Central Radio Station

1928
Annaka installed its first 2kW remote-control wireless transmitter for Asama-Maru and other U.S./Europe-bound ships

1931
Anritsu Electric Corporation was established by the merger of Kyoritsu Electric and Annaka Electric

1933
Anritsu delivered Japan's first TV broadcast transmitter to Hamamatsu Advanced Technical School (now Shizuoka University)

1939
Anritsu developed Japan's first automatic public telephone
Anritsu developed Japan's first AC-bias magnetic recorder, the prototype of today's tape recorders

1943
Anritsu began production of repeaters for transmission by coaxial cable

1950
Anritsu developed the ARM-6074 field strength meter with doublet antenna for ultra-short wave electric fields

1953
Anritsu began production of No.4 automatic public telephones with the"phone now, pay later" billing system

1961
Anritsu established Atsugi Factory

1962
Anritsu began production of electronic micrometers (start of industrial automation instruments)

1964
Anritsu began production of automatic weighers

1967
Anritsu succeeded in producing hybrid ICs
Anritsu began production of traffic control information systems

1968
Anritsu was registered in First Section of Tokyo Stock Exchange

1970
Anritsu began exporting public telephones to Australia

1977
Anritsu developed 2Gb/s ultra-high-speed error detectors
Anritsu began marketing of optical communications measuring instruments

1979
The new head office building was completed
Anritsu received a massive order from AT&T for microwave circuit measuring instruments

1982
Anritsu released the world's first INMARSAT-ship terminal approved by INMARSAT

1985
Anritsu changed its name to Anritsu Corporation on October 1
Anritsu established Tohoku Anritsu Corporation

1986
Anritsu developed a 5GHz pulse pattern generator for use in development and researched of optical fiber communications systems and ultra-high-speed logic elements

1990
Anritsu acquired Wiltron Company of the U.S.A.

1993
Anritsu released various measuring instruments for digital mobile communications

1994
Developed 12.5GHz ultra high-speed error detector

2000
Developed SONET/SDH/PDH/ATM analyzer, capable of measuring up to 10Gb/s

2001
Developed world's first 43.5GHz 4-channel ultra high-speed Error Detector
Developed the Signaling Tester conformed with testing the 3GPP mobile phones

2002
Developed the world-class optical power (1W) 1400nm pump laser diode

2003
Anritsu's Conformance Test System gains GCF approval in Europe for 3G mobile terminals conforming to 3GPP specifications