KAJIWARA CO.,LTD.

Taisho 4 (1915): Teijiro Kajiwara founded Kajiwara Iron Works, focusing on pressure vessel and boiler manufacturing. Established forging and casting departments and expanded the machine finishing factory.

The origin of our craftsmanship lies in a small ironworks we established in 1915 (Taisho 4).

Showa 11 (1936): Factory relocated to Emiso, Shikama Ward, Himeji City.

Showa 12 (1937): Became a designated factory of Kure Naval Arsenal, manufacturing condensers and take-boilers. Built finishing and assembly factory. Formed labor union during post-war chaos.

Showa 23 (1948): Michitaro Kajiwara assumes the role of second president.

Showa 25 (1950): Reorganized into a corporation, Kajiwara Iron Works Co., Ltd. Started production of soot blowers. Began dealings with Gadelious Trading Company.

Showa 31 (1956): Built a can-making factory.

Showa 32 (1957): Began production of steel plate welded joints (now separated into other companies).

Showa 38 (1963): Built Matsunomoto Factory. Started production of engine beds for Sural Diesel engines.

Showa 39 (1964): Began production of oil heaters.

Showa 40 (1965): Yoji Kajiwara assumes the role of third president. Company expands to 200 employees and 10 accounting staff.

Showa 42 (1967): Began production of flue gas boilers.

Showa 44 (1969): Began production of marine oil-fired boilers.

Showa 46 (1971): Built Nakashima Factory. Started full-scale manufacturing of dust collectors.

Showa 47 (1972): Applied for corporate reorganization law.

1978: Toshizuki Yoshinosuke becomes the 4th generation leader.

1979: Expanded the sheet metal processing plant at the Nakajima factory. Responded to power plant construction demand by manufacturing internal components for electric exhaust machines.

1984: Completion of company rehabilitation procedure.

1987: Kajiwara Shigeru becomes the 5th generation leader.

1990: With the dioxin issue, demand for bug filters at waste incinerators increased.

1991: Achieved record high sales during the bubble economy.

1996: Started production of KJ-style large bug filters. Shifted from being an ironworks to becoming a manufacturer producing its own products.

2004: Began production of Sunrod oil heaters (oil heaters) under its own brand. Established a new revenue structure and organized internal systems.

2005: Kajiwara Toshiki becomes the 6th generation leader.

2010: Total production of oil heaters under our brand reached 3,000 units.

2011: Started production of automatic label printing machines for steel components.

2012: Started research into renewable energy, introduced a cutting‑edge composite processing machine that was the only one in western Japan, and received new bug filter orders from Sanyo Special Steel.

2013: Obtained ISO9001 and ISO14001 certifications.

2014: 100th anniversary of founding. Shifted focus to decarbonization. Sold Nakajima factory to Sanyo Special Steel Co., Ltd. and started new business.

2016: Started production of odor removal devices that eliminate volatile organic compounds (VOCs) causing air pollution. Increased transactions with chemical manufacturers dealing with VOC‑emitting paints and films.

2017: Opened Kobe office as a contact point for odor removal devices.

2020: Opened Tokyo sales office to strengthen sales in the Kanto region.

2022: Established a construction division.

2023: Relocated headquarters. Signed a Japan exclusive agency agreement with Italian manufacturer ZUCCATO ENERGIA, a maker of organic Rankine cycle power systems.

In October 2023, the new headquarters and factory began operations, serving as a hub for further innovation and creativity.

2024: Changed company name to KAJIWARA Co., Ltd.

On October 1, 2024, in celebration of our 110th anniversary, we aimed for a "second founding" and changed our company name to "Kajiwara Co., Ltd."