March 2019

In order to strengthen the business activity in European automobile industry,Wavelock Advanced Technology GmbH was established in Germany as a subsidiary company of Wavelock Advanced Technology Co., Ltd.

January 2019

Sales, Purchase, Administration Department of Dio Chemical Co., Ltd has been integrated with Innovex Co.,Ltd. Through stock exchange, Innovex Co.,Ltd is now sole parent company for Dio Chemical Co.,Ltd and Japan Wavelock Co.,Ltd.

June 2018

In order to strengthen the business activity in the North American automobile industry, Wavelock Advanced Technology Inc. was established in the USA as a subsidiary company of Wavelock Advanced Technology Co., Ltd.

April 2018

Listed to first section in Tokyo Stock Exchange Market.

February 2018

In order to strengthen the group activity in ASEAN region, Innovex Co., Ltd, Dio Chemicals Co., Ltd and us established a co-sponsored company, Wavelock International (Thailand) Co., Ltd.

April 2017

Re-listed to second section in Tokyo Stock Exchange Market.

October 2015

In order to improve efficiency on the value chain of the interior business, further improvement on quality and pursue new product development, formed business capital alliance with Sangetsu Co., Ltd. 
The company held 22.2% of the share and became equity method affiliated company.

April 2013

Japan Wavelock Co., Ltd separated manufacture and sales. The manufacture company continued the business name Japan Wavelock Co., Ltd. The sales company was absorbed to Innovex Co., Ltd (Established in Feb 2013) and at the same time industrial material sales department was merged in Dio Chemical Co., Ltd.

March 2013

In order to strengthen the function of trading in Asia, Wavelock International Asia. Co., Ltd was established in Hong Kong as a subsidiary of Wavelock Interior Co., Ltd. 

June 2102

Dio Chemical Co., Ltd established Dio Jia Europe Agricultural Science Co., Ltd as a joint venture company in China as a textile manufacturing subsidiary company. 

April 2012

Form business capital alliance with Entire Technology Co., Ltd.  
Agreed to mutually collaborate in manufacturing, development, sales, and possession of stock agreement. 

March 2012

Established Wavelock Korea Co., Ltd as a subsidiary company of Wavelock Advanced Technology Co., Ltd in Korea which sells various electronic materials and plastic products.

April 2010

Moved metallic decorative sheet and other business from Japan Wavelock Co., Ltd to a newly established Wavelock Advanced Technology Co., Ltd. At the same time made Shine Techno our subsidiary company. 

October 2009

Absorption-type merger with the parent company Wavelock Investment Co., Ltd. The financier of Wavelock Investment Co., Ltd became the shareholder of our company and MPC3 Investment Business Limited Liability Partnership became the principal shareholder.

July 2009

Delisted from the Tokyo Stock Exchange market.

March 2009

In order to acquire public share of our company, Wavelock Investment Co., Ltd became the parent company.

April 2008

To further strengthen the interior business, changed the company name from Yamato Chemical Industry Co., Ltd to Wavelock Interior Co., Ltd. and became a supervise management company for interior business and placed Sakura Polymer Co., Ltd and newly established Yamato Chemical Industry Co., Ltd under its wing.

May 2007

Acquired additional 40% share of Yamato Chemical Industry Co., Ltd (Currently Wavelock Interior Co., Ltd) and made is a wholly owned subsidiary. 

April 2006

Established Shine Techno Co., Ltd. as a wholly owned subsidiary in order to manufacture and sell functional resin products.

April 2006

To strengthen the foundation of the interior business, acquired 60% of the share of Yamato Chemical Industry Co., Ltd (Currently Wavelock Interior Co., Ltd) making the company a consolidated subsidiary. 

April 2005

Changed the company name to “Wavelock Holdings Co., Ltd and created a new company; Japan Wavelock Co., Ltd to inherit all of the business and became a pure share holding company. Since the change of the shareholding, Dio Chemistry Co., Ltd became a wholly owned subsidiary company.

May 2004

Relocated head office to Akashi-cho, Chuo-ku, Tokyo

December 2003

After public purchase, obtained 50.1% of the share of Dio Chemicals Co., Ltd and made it a subsidiary company.

July 1998

Made Sakura Polymer Co., Ltd a subsidiary company.

December 1997

Expanded facility for extrusion specially for non-chloride vinyl at Sowa 2nd Factory (Current Koga Plant, Oshidashi 2nd Factory). Started manufacturing and selling polystyrene (PS) molding sheet.

September 1997

Completed Sowa 2nd Factory (Current Koga Plant, Oshidashi 2nd Factory).

December 1996

Listed to the second section in Tokyo Stock Exchange Market

August 1995

Capital participation in Chiba-Graviya Co., Ltd (Current Sakura Polymer Co., Ltd) to expand business in vinyl chloride wallpaper base.

January 1994

Relocated head office to Kachidoki, Chuo-ku, Tokyo.

September 1991

Completed Ichinoseki Factory (now Ichinoseki Plant) in Higashidai, Ichinoseki, Iwate and newly established coating equipment. (Started manufacturing and selling industrial construction mesh)

October 1990

Registered as Over-the-counter stock in the Japan Stock Association. Published stock. 

August 1983

Entered into Polypropylene (PP) sheet market. Started manufacturing and selling molding sheet.

April 1980

Relocated head office to Tsukiji, Chuo-ku, Tokyo.

November 1979

Entered into wallpaper market. Started manufacturing and selling vinyl chloride wallpaper base.

February 1965

Started manufacturing and selling Wavelock product.

June 1964

In order to introduce patented Wavelock technology for thread reinforced plastic sheet from Mr. Bruno Romanin, Italia T.C.M company, Japan Wavelock Co., Ltd with the capital of 60 million yen was funded equally and established by 3 companies Nisho Co., Ltd (Current Sojitzu Co., Ltd), Nippon Carbide Industries Co., Inc., and Maruto Kasei Kogyo Co., Ltd (Current Tatsuta Chemical Co., Ltd).
(Head office: Kanda Jimbocho, Chiyoda-ku, Tokyo
Factory: Sowaicho, Sarushima gun, Ibaraki (Current Koga City, Ibaraki)