Chemical Yamamoto Co., Ltd.
With the motto of “corrosion resistance (brightness) and shine with stainless steel”, we have developed and promoted “Removing Welding Burns Method by Neutral Salt Electrolysis” that is friendly to both people and the environment to remove welding burns,rust and dirt on stainless steel surfaces without using poisonous and deleterious substances. Also,we have developrd new applications of electrolytic method and finally, it has been evolved into a surface modification method. of "Ultra Passivation" that is effective in preventing pitting corrosion and stress corrosion cracking, which can be said to be a fatal defect of stainless steel. We are R & D type company.
At the same time, we established a new business to be entrusted with "Ultra passivation treatment" as a measure to improve corrosion resistance and prevent stress corrosion cracking in operating food machinery and chemical plants, and are developing it on a country-wide basis. Such aggressive management was recognized, and at the end of 2017, it was selected by the Ministry of Economy, Trade and Industry as a “regional future leader company”.
There has been no decline in our desire for research and development. For example, we recently have made it possible to remove welding burns on a thick plate of 10 mm or more in thickness, which was impossible with electrolytic method alone, by combining grinding and electrolysis.
Surface cleaning technology such as removal of welding burns, rust and dirt on stainless steel, and decontamination of radioactively contaminated metal parts.
・Simple discrimination technology for stainless steel grade and passivation degree of stainless steel.
・Ultra-passivation technology that is dramatically improves the corrosion resistance of stainless steel and is effective in removing stress corrosion cracking of stainless steel.
“Incentive Award of the Chief of Small and Medium Enterprise Agency” from the Japan Institute of Invention and Innovation in 2002
(Third award)
“Award of the Director-General of the Patent Agency” from the Patent Agency in 2002
“Device Merit Award” in the 28th Invention Award sponsored by the Japan Society for the Advancement of Inventions (JSAI) in 2003
“Incentive Award of the Director-General of the Patent Office” by the Japan Institute of Invention and Innovation in 2004
“Invention Merit Award” in the 32nd Invention Award sponsored by JSAI in 2007
“Device Merit Award” in the 36th Invention Award sponsored by JSAI in 2011
“Welding Remarkable Invention Award” by The Japan Welding Engineering Society in 2011
“Invention Encouragement Achievement Award” of Natl. Invention Award by the Japan Institute of Invention and Innovation in 2011
“Award for Excellence” in the 24th Small and Medium Enterprise Great New Technologies and New Product Award sponsored by the Resona Foundation for Small and Medium Enterprise Promotion in 2012
Received “The Order of the Rising Sun, Gold and Silver Rays” in 2013. We have contributed to the development of Japanese stainless steel welding industry.
“Contribution Award” by The Japan Welding Engineering Society in 2014
“Projects to support the advancement of core technologies” (National Institute of Advanced Industrial Science and Technology / Hiroshima Institute of Technology) from 2015 to 2016
“Hiroshima Prefectural Governor Award” of Chugoku Regional Invention Award by the Japan Institute of Invention and Innovation in 2017
“Minister of Economy, Trade and Industry Award” in the 8th Japan Manufacturing Award in 2020
“Invention Merit Award” in the 46th Invention Award sponsored by JSAI in 2021