1892	Hyokichi Ihara, the founder of IFC, established a furnace construction contractor named Ihara-gumi in Osaka
1896	Construction of two semi-gas bottle glass tank furnaces on a special order for the bottle factory of Osaka Breweries
1903	Hyokichi Ihara supervised the construction of the Siemens type bottle glass furnace in India
1909	Constructed a sheet glass furnace using Belgium type manual blowing cylinder method in Amagasaki plant, Asahi Glass Co., Ltd
1919	Constructed the Siemens type sheet glass furnace at Wakamatsu plant, Nichibei Sheet Glass Co., Ltd. (current Nippon Sheet Glass Co., Ltd.)
1928	Constructed the Foucault type sheet glass furnace at Amagasaki plant, Asahi Glass Co., Ltd
1939	Constructed a continuous heating furnace and a holding furnace for steel sheet at Hirohata works, Japan Iron & Steel Co., Ltd. (current Nippon Steel Corporation)
1948	Established Ihara Furnace Construction Co., Ltd. with share capital 500,000 yen
1953	Construction of a rotary kiln for titanium production at Ishihara Sangyo Co., Ltd.
1954	Constructed a glass furnace for vacuum tubes for Asahi Special Glass Co., Ltd.
1958	Iwao Ihara appointed as the new president
1960	Construction of a copper reverberatory furnace of Sanbo Shindo Co., Ltd.
1961	Construction of an open hearth furnace for Sumitomo Metal Industries, Ltd. Wakayama Steel Works No. 3
1962	Opening of Kanto office
1964	Opening of Yokohama and Kyushu sales offices Received the assignment to become a furnace material dealer from Asahi Glass Co., Ltd. Construction of a float-type flat glass tank furnace at the Tsurumi Factory of Asahi Glass Co., Ltd
1966	Opened Osaka sales office (Takasago City, Hyogo Prefecture)
1967	Changed the company name to Ihara Furnace Co., Ltd. Separated the design and construction department for acid-resistant construction works making it independent
1968	Established Ihara Kosan Co., Ltd., separated glass raw material (cullet) processing department
1972	Opened Aichi sales office (Current Nagoya sales office) Established Ihara Kozai Co., Ltd., and separated the polishing department of furnace materials, making it independent Established Ihara Kaken Co., Ltd., and separated the processing department of lightweight new construction materials, making it independent Introduced orphen periscope (observation device for high temperature furnace interior) and radiant metal recuperator (high temperature exhaust gas heat exchanger)
1973	Construction of the urine treatment facility for the partial affairs cleaning association in the central Tsushima area
1975	Established Incinerator group (current Environmental facilities department)
1976	Developed rapid-heating-up technology together with Asahi Glass Co., Ltd. Construction of municipal waste incineration facility in Gushikawa City, Okinawa Prefecture
1977	Increased share capital up to 90 million yen
1980	Developed a day-tank fully electric melting furnace
1981	Technical partnership with Gadelius Co., Ltd. (currently Alstom Co., Ltd.) for manufacturing and sales of a combustor (small incinerator)
1982	Development of a far-infrared rays technology (printed circuit board drying / printing / firing furnace / heating furnace for X-sheet molding)
1984	Developed and delivered to Yasuda Glass Kogyo Co., Ltd. (requested by Osaka Gas Co., Ltd.) a down-draft joint furnace Developed an electric booster for glass furnaces and became an agent for CRI company
1987	Established Taiwan branch
1988	Completed research and development of high-efficiency crucible furnace and held an open briefing session (commisioned by the SME business group)
1991	Established Singapore branch
1992	Established Shanghai Yaohua Ihara Furnace Co., Ltd.(current Shanghai Ihara Furnace Co., Ltd.)
1995	Completed research and development of Cullet preheated glass melting system with waste heat recovery and held an open briefing session (commisioned by the SME business group) Sales partnership with Antonini company (Italy) for lehr Developed a regenerative burner type crucible type glass melting furnace
1997	Established PT. Ihara Teknis Indonesia (Jakarta, Indonesia)
1998年	Development of the dry honeycomb rapid gas cooling system
2004	Shinichi Ihara becomes the new president, and Iwao Ihara becomes the advisor Renewal of the exhaust gas treatment equipment for wood chips fuel-fired boiler equipment for Rebirth Co., Ltd. (Osaka) Received an order from Takuma Plant Co., Ltd. Gas production equipment at Sumitomo Metal Industries, Ltd./Sumikin Recycling Co., Ltd. (Kashima Steel Works) Construction of the furnace body equipment (1st stage)
2005	Former Shanghai Yaohua Ihara Furnace Co., Ltd. renamed to Shanghai Ihara Furnace Co., Ltd.
2006	Closing of Singapore branch
2007	Established IFC KOREA Co., Ltd. (Gumi,Korea)
2008	Etsuji Ihara became the new president
2014	Acquired NAFCO Co., Ltd.
2018	ISO9001: due to the start of independent operation the registration of 2015 was relinquished
2020	Established IFC (THAILAND) Co.,Ltd. (Bangkok,Thailand)
2024	Company name changed to IHARA FURNACE Co., Ltd. Shogo Ihara appointed as the new Company President Etsuji Ihara appointed as Director and Senior Advisor