| 1951 |
Developed an optical display system for announcing the departure of trains at Tobu Asakusa Station |
| 1951 |
Developed an automatic voltage regulator for troops stationed in Japan |
| 1951 |
駅光学式発車案内表示装置（東武浅草駅） |
| 1951 |
自動電圧調整器（在日駐留軍） |
| 1951-11-26 |
Founded at 4 Sakuragawa-cho, Shiba-Nishikubo, Minato-ku, Tokyo on November 26 |
| 1951-11-26 |
東京都港区芝西久保桜川町4番地にて創立（11月26日） |
| 1952 |
Applied for a patent for the A distributed system, the basis for our in-train public-address system |
| 1952 |
車内放送装置の基本となるA分散式の特許出願 |
| 1953 |
Began supplying in-train public-address system for Odakyu Electric Railway, Keihin Electric Express Railway, Tobu Railway, Seibu Railway and Kintetsu Corporation |
| 1953 |
車内放送装置の納入開始（小田急、京急、東武、西武、近鉄等） |
| 1954 |
Launch of the reel-to-reel playback equipment |
| 1954 |
オープンリール式再生器の開発 |
| 1955 |
Japan's first launch of transistor borne PA equipment, replacing evacuated tube (Odakyu Gotemba line, new diesel trains) |
| 1955 |
日本初、真空管からトランジスター式放送装置開発（小田急・御殿場線新造気動車） |
| 1956 |
Launch of automatic PA equipment system (Tobu Akagi cable car, Odakyu Romance Car, Tobu Romance Car, Kintetsu, Enoden) |
| 1956 |
自動放送装置の開発（東武赤城ケーブルカー、小田急ロマンスカー、東武ロマンスカー、近鉄、江ノ電） |
| 1957 |
Japanese National Railways (JNR) certifies our product as an in-train public-address system standard |
| 1957 |
Developed a vacuum-tube-based in-train public-address system for the Japanese National Railways Moha 90 Series |
| 1957 |
Developed a melody-type electronic warning system for Odakyu Electric Railway SE trains |
| 1957 |
国鉄が当社製品を電車用放送装置として規格承認 |
| 1957 |
真空管式放送装置（国鉄モハ90系） |
| 1957 |
小田急3000形（SE車）にメロディー式電子警報器を納入 |
| 1958 |
Developed an in-train public-address system for the Japanese National Railways Kodama Express |
| 1958 |
Developed a radio receiver for new Nishitetsu trains |
| 1958 |
Developed a vending machine with a sightseeing telescope for Morinaga & Co. |
| 1959 |
Applied for a patent for the B distributed the basis for our in-train public-address system for 103 Series commuter railcars |
| 1959 |
Developed a special earthquake proofing tape player for Japanese National Railways school-excursion trains |
| 1959 |
Developed a magnetic non-amplifying loudspeaker system for Bus on a Regular Route |
| 1959 |
Launch of music box amplifier |
| 1960 |
Developed a carrier-type in-train public-address system for Japanese National Railways |
| 1960 |
Developed an inductive radio-type emergency warning system for Marunouchi line |
| 1961 |
Applied for a patent for a distributed in-train public-address system for Diesel railcar |
| 1961 |
Developed a train radio system (inductive) for Hibiya line |
| 1963 |
Headquarters factory open |
| 1964 |
Developed an in-train public-address system and automatic announcement system for Series 0 the Tokaido shinkansen |
| 1966 |
Developed a train radio systems (inductive) for Ginza line and the Transportation Bureau City of Nagoya Meijo Line |
| 1966 |
Developed the somascope for medical care system for use in hospitals |
| 1968 |
Supersonic type obstacle detector for railroad (gated) crossing (Keikyu, Keihan, Hankyu) |
| 1969 |
Developed a multi-level, tape-based automatic announcement system for stations on the Teito Rapid Transit Authority and Odakyu Electric Railway |
| 1969 |
Developed an electro-optical system for determining and displaying the winners of bicycle races for the Japan Keirin Association |
| 1969 |
Developed a train destination indicator and train number indicator for Keisei Electric Railway |
| 1977 |
Developed a unit voting ticket issuing machine for public bicycle and powerboat racing |
| 1977 |
Developed an in-train public-address system with an automatic volume adjustment function for Japanese National Railways 201 Series commuter railcars |
| 1977 |
Developed a system for analyzing, recording, and playing back the causes of electrical control failures for Japanese National Railways |
| 1980 |
Developed an inductive radio and data transmission system for trains on the Fukuoka City Subway and Kyoto Municipal Transportation Bureau |
| 1980 |
Developed an microwave system for detecting obstacles at railway crossings for Keihin Electric Express Railway |
| 1982 |
Developed a tape-based automatic announcement system for 200 Series Shinkansen trains Tohoku and Joetsu shinkansens |
| 1982 |
Developed an inductive radio security system for the Nankai cable car Line for KOYASAN |
| 1982 |
Developed an IC-type automatic announcement system for Sanyo Electric Railway |
| 1985 |
Developed an in-train public-address and communication system for Series 100 the Tokaido shinkansen |
| 1985 |
Developed an IC-type automatic announcement system for Tokyu Corporation and Nagoya Railroad |
| 1987 |
Developed an in-train radio relay system for Odakyu Electric Railway |
| 1996 |
Developed a train radio system (inductive) featuring continuous surveillance and remote control for Ginza line |
| 1998 |
Developed the Papala Vision in-train system for receiving text data for Odakyu Electric Railway and FM Tokyo |
| 1999 |
Developed a digital-transmission public-address system for JR East E231 trains railcars |
| 1999 |
Obtained ISO9001:1994 certification |
| 2001 |
Developed a Japan-first visual information transmission system for Seibu Railway |
| 2001-03-27 |
Completed construction of a new office and factory at 1-17-1 Ohmorihigashi, Ohta-ku, Tokyo on March 27 |
| 2002 |
Obtained ISO9001:2000 certification |
| 2004 |
Developed an inductive radio systems for trains and optical transmission system for Keihin Electric Express Railway |
| 2005 |
Developed an ATO (Automatic Train Operation) data transmission system for Aichi Rapid Transit Linimo |
| 2007 |
Developed an in-train public-address and communication system by PHS for JR Tokai Series N700 |
| 2007 |
Obtained ISO14001:2004 certification |
| 2008 |
Relocation of head office to 4F No.2 Keikyu Bldg., 3-25-23 Takanawa Minato-ku, Tokyo |
| 2008 |
Obtained ISO9001:2008 certification |
| 2009 |
Tokyo based TV Asahi Corporation group TV program "Tamori Club" on air with the title of "Pioneer of in train PA system, Yawata Electric Industrial BEST10" |
| 2010 |
Exhibited in the 1st Mass-Trans Innovation Japan |
| 2012 |
Overseas project team organized |
| 2012 |
Supplied PA products to Linear Chuo Shinkansen L0 series |
| 2012 |
Forward Surveillance Camera System For JR East |
| 2012 |
Entertainment contents delivery system (Shimakaze 50000 series Kintetsu) |
| 2013 |
Audio Visual System for JR Kyushu "Seven Stars in Kyushu" |
| 2014 |
In-train public-address systems complying with International Standards for Hitachi IEP |
| 2015 |
Exhibited in the 9th UIC World Congress on High Speed Rail |
| 2016 |
London UK office established |
| 2016 |
Japan’s first high sound quality in train PA system launched (Tokyo Metro Hibiya line 13000 series) |
| 2016 |
Contents delivery system (Shikishima E001 type JR East, Mizukaze 87 type JR West) |
| 2016 |
Overseas standard compliant PA equipment (Singapore MRT Thomson line) |
| 2018 |
Factory annex completion |
| 2018 |
Japan's first Wi-Fi network camera launched (E235 series Yamanote line JR East) |
| 2019 |
Side view camera (JR Kyushu) |
| 2019 |
PA equipment delivered to E956 series ALFA-X. (JR East) |
| 2020 |
In train communications system (N700S JR Central) |
| 2020 |
In train shopping system (Kazu E655 type JR East) |
| 2021 |
Transportation Bureau, City of Nagoya Inductive Train Radio construction, for train operation with no conductor train system |
| 2021 |
Start SDG's-led corporate activities |
| 2021 |
New launch of next generation automatic PA system |
| 2021 |
70th anniversary of the foundation of Yawata Electric Industrial Co., LTD. |
