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Latest update: 27/04/2017 14:27:30

Chemical Yamamoto Co., Ltd.

We apply our distinctive technology in weld burn removal and metal surface modification of stainless steel.

Our company sells electrolytic polishing tools and materials (power supply equipment, electrolytic solutions, devices for discrimination and measurement of stainless steel passivation level, etc.) to stainless steel product users and provides treatment under contract. In addition, we sell various cleaning agents for removing weld burns, rust and stains on common metals such as iron, aluminum, copper and titanium. Thirty-four years ago, we developed a “neutral salt electrolysis burn removal method” for stainless steel, which eliminated the pickling process that uses nitric hydrofluoric acid, a dangerous toxic substance, in the weld burn removal operation. We have more than 30 registered patents that focus on using this method. Moreover, we verified the effectiveness of the neutral salt electrolysis technology at universities and public institutions through the Strategic Core Technology Advancement Program (SAPOIN) of METI.

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[Company strength]
Thirty-four years ago, we developed the groundbreaking “Welding scale  removal method using neutral salt electrolysis ” for stainless steel, which eliminated the pickling process that uses nitric hydrofluoric acid, a dangerous toxic substance, in the welding scale removal operation. Our product areas have now expanded to devices for discrimination of passivation level, devices for discrimination of material, and cleaning agents for removing rust and stains on iron, aluminum, and other metals. Our company has 53 employees and more than 30 registered patents that focus on using our welding scale removal technology. We are collaborating with universities and public institutions in a Strategic Core Technology Advancement Program (SAPOIN) of METI that was adopted from our proposal. We have received numerous awards and, in particular, President Yamamoto was bestowed with the Order of the Rising Sun, Gold and Silver Rays.

[Business description]
Our company sells electrolytic polishing tools and materials (electrolytic welding scale remover, electrolyte, devices for discrimination and measurement of stainless steel passivation level, etc.) to processing companies who must remove welding scale and rust, and to stainless steel product users who have problems with chlorine pitting corrosion or stress corrosion cracking, and we also provide treatment under contract. In addition, we sell basic material discrimination devices to plumbers having trouble discriminating stainless steel material, and a variety of cleaning agents to customers having trouble removing welding scale, rust and stains on common metals such as iron, aluminum, copper and titanium. Our product lineup includes more than 300 items.

[Industry]
Manufacturing

[Strength of products/technologies]
1. Weld burn removal and surface modification technologies: The appearance and corrosion resistance after burn removal treatment are greatly improved, so that SUS 304 exhibits similar resistance to chlorine pitting corrosion as SUS 316. The electrode size in the treatment can be freely selected, the internal surface of a large-sized vessel can be treated, and the rust and stains on the surface of large stainless steel structures, which were previously difficult to remove, can be removed by using our electrolytic materials and agents.
2. Passivation level discrimination and material discrimination technologies: These are proprietary technologies used by our company alone.
3. Cleaning technology for rust and stains on iron, aluminum, etc.: Our products are excellent in operability, speed and finish in comparison with other available products.


[Representative's message]
In addition to bringing stronger corrosion resistance and greater brightness to stainless steel, we have eliminated the need for nitric hydrofluoric acid, a dangerous toxic substance that has been used in weld burn removal throughout the history of stainless steel. We developed the neutral salt electrolysis burn removal method, which is safe, non-toxic and free of harsh working conditions. Our efforts to popularize the method succeeded in its expansion mainly into small and midsized enterprises. However, since some welding work specifications still include instructions for pickling, major companies should recommend the neutral salt electrolysis welding scale removal method in outsourcing. We plan to globally expand our technology and develop our company structure to steadily achieve this goal.

[Company structure for market development/overseas expansion]
We have four business offices and nine branch offices in Japan. The sales representatives at each office conduct direct sales on a daily basis and sales expansion at numerous fairs and exhibitions. The Head Office conducts direct PR activities and demonstrations at exhibitions for major companies. We cooperate with designated domestic retailers in performing demonstration PR at overseas sites, and will actively advertise our products including overseas demonstrations as required.

[Market share/Ranking]
We have the top share of welding scale remover in Japan (44% share by units: Shimpo Welding Mart 2016). We also have the best lineup of different electrolyte, which are produced by our proprietary technology.

[Awards and media coverage]
[Awards]
Science and Technology Director Award (1997)
Medal with Yellow Ribbon (1998)
Patent Office Director Award (2002)
Order of the Rising Sun, Gold and Silver Rays (2013)
(All received by President Masato Yamamoto)

[Media]
Nikkan Kogyo Shimbun (September 9, 2014 and 5 January 5, 2016)
TV Tokyo, “Kigyo Mirai! Challenge 21” produced by the Organization for Small & Medium Enterprises and Regional Innovation (April 20, 2003)


[Joint research and development]
Under the 2014 Strategic Core Technology Advancement Program supported by the Chugoku Bureau of Economy, Trade and Industry, we collaborated with the Hiroshima Institute of Technology and the National Institute of Advanced Industrial Science and Technology on the research project “Dramatic Improvement of Resistance to Chlorine Pitting Corrosion and Stress Corrosion Cracking of Stainless Steel by Using Electrolytic Passivation Film Modification Technology” (from August 1, 2014 to March 31, 2016). The research results clarified the effect of ultra passivation treatment by means of microscopic analysis, and will be presented at conferences, etc.

[Intellectual property]
JP 4678612 B “Surface Modified Stainless Steel and Method of Treating Surface Modified Stainless Steel”
JP 5747268 B “Stainless Steel Made Plant, Treatment Method for Preventive Maintenance for Stress Corrosion Cracking of Equipment or the Like, and Prolongation of Life”
and more than 30 other registered patents


[Factory (domestic)]
Production facility in hatsukaichi  city,Hiroshima Prefecture

[Other sites]
R&D facility in hatsukaichi  city,Hiroshima Prefecture

[Transaction form]
We sell our products mainly through agents or retailers of welding services and industrial tools, with some exceptions.

[Main Clients / Business History (domestic)]
We have delivered our products to more than 200 major companies (machinery, shipbuilding, railroad cars, plants, construction, etc.) mainly through our agents and retailers. In addition, we have also provided contract treatment services (on site or brought to us) for welding scale removal for major machinery companies, and the number of orders is steadily increasing.

[Main Clients / Business History (overseas)]
We sell our products (electrolytic welding scale remover, electrolyte) to Southeast Asia via specific domestic retailers. We have also sold our products for ODA projects in Southeast Asia.

[Exhibition History/Information]
International Food Machinery and Technology Exhibition (FOOMA) Japan 2016 at Tokyo Big Sight (June 7-10, 2016)
Maintenance & Resilience Tokyo 2016 at Tokyo Big Sight (July 20-22, 2016)
Surface Structure Design Show at Pacifico Yokohama (September 7-9, 2016)
Welding Festa organized by welding traders, Dotera-ichi organized by tool traders, etc.


This company is recommended by the following support organizations.

Chugoku Head Office, SMRJ
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