| Feb 1946 | We started business as a training factory of the Kanto Gakuin Technical School (present Kanto Gakuin University). |
| May 1963 | The production and the sale of the “pula chrome” product. (The technical development to make plating on plastic) |
| Oct 1964 | The pula chrome was adopted to the mass production vehicle of Toyota Motor Industry Corporation (present Toyota Motor Corporation) first in the world. |
| May 1969 | Kanto Kasei Kogyo Co., Ltd. (capital 100,000,000 yen) was established by separating from the educational Kanto Gakuin. |
| May 1972 | The establishment of Uchikawa Industry Co., Ltd. (The independence of the molding section) |
| Nov 1973 | The capital increase to 125,000,000 yen |
| Jan 1980 | The capital increase to 200,000,000 yen |
| May 1984 | The establishment of Multi INC. (Manufacturing of multilayer printed wiring boards) |
| Nov 1984 | The receiving a prize of the first Kanagawa Engineering Development Grand Prix (The technical development of the printed wiring board by the new additive process) |
| Feb 1985 | The establishment of Seiwa Trading Corporation (The fullness of the welfare program of the employee) |
| Sep 1995 | The establishment of Toyota office at Toyota city in Aichi prefecture (The reinforcement of the department of sales and the guarantee of quality) |
| Mar 2001 | The Acquisition of Certification about the environmental management system of ISO14001 (JQA-EM1358) |
| Nov 2002 | The receiving “the prize of the global environmental technology” at the 19th Kanagawa engineering development grand prix (The method of resinous plating of an environmental compatible type by using the coat) |
| Oct 2003 | The start of the operation of the new factory (the resinous plating, the coat, the assembling) |
| Nov 2004 | The receiving “the prize of the global environmental technology” at the 21th Kanagawa engineering development grand prix (The washing system of coat of paint (the Mega master) in the next generation of the global environmental compatible type) |
| May 2005 | The start of the operation of the main building (the building of the office work and the distribution) |
| Apr 2006 | Our company has been included on the list of 300 Japan’s dynamic manufacturing by Small and Medium Enterprise Agency. |
| Nov 2011 | Iwate Factory (coating and assembly) started operations in Ichinoseki City, Iwate |
| Mar 2013 | PT. Resin Plating Technology (RPT), a joint venture with Toyota Auto Body Co., Ltd, was founded in Indonesia |
| Dec 2014 | Tochigi Office was established in Sano City, Tochigi (mold designing division) |