| 1915 |
Established in Kanagawa Ward, Yokohama City, started manufacturing natural graphite electrodes |
| 1915-12-20 |
Established on December 20, 1915, Japan Carbon Co., Ltd. |
| 1915-12-20 |
Established: December 20, 1915 |
| 1926 |
Start of manufacturing artificial graphite electrodes (electrolytic plates) for aqueous solution electrolysis |
| 1927 |
Succeeded in manufacturing the first artificial graphite electrodes in our country |
| 1932 |
Industrialization of electric brushes for electric motors |
| 1933 |
Construction of Yamanashi factory for electrolytic plates manufacturing |
| 1934 |
Construction of Toyama factory for manufacturing artificial graphite electrodes for steelmaking |
| 1938 |
Construction of Yokohama Coast Factory and start of mass production of high-grade carbon products such as electric brushes |
| 1949 |
Industrialization of non-penetrating graphite (Resbon) for chemical structural materials |
| 1957 |
Establishment of technology for graphite (moderator and reflector) for nuclear reactors |
| 1962 |
Industrialization of carbon fibers (Carbonon) |
| 1966 |
Industrialization of apex seals for rotary engines |
| 1970 |
Start of sales of high-strength, high-elasticity carbon fibers (Carbonon-Z) |
| 1974 |
Start of sales of flexible graphite seal material (Nika Film) |
| 1980 |
Development of manufacturing technology for continuous silicon carbide fibers (Nicalon) entrusted by New Technology Development Organization |
| 1983 |
Start of isotropic graphite production at Yamanashi factory, and successful recognition by New Technology Development Organization for development of manufacturing technology for continuous silicon carbide fibers (Nicalon) |
| 1985 |
Received Deming Prize Implementation Award |
| 1986 |
Start of sales of fibrous activated carbon |
| 1987 |
Operation of Shirakawa factory as a processing plant for high-performance sliding materials (SC Carbon) |
| 1992 |
Development entrusted by New Technology Development Organization for industrialization of ultra heat-resistant continuous silicon carbide fibers (Hainicalon) using electron beam irradiation method |
| 1992 |
Development of ultra-high heat resistant carbonized silica continuous fiber (Hinikaron) through electron beam irradiation method, commissioned by the New Technology Development Organization (formerly New Technology Development Agency) |
| 1993 |
Certification of Toyama factory ISO9001 |
| 1994 |
Shiga factory (New Japan Carbon) ISO9002 certification (renewed to ISO9001 in 1997) |
| 1995 |
Recognition of success by the New Technology Business Group for industrialization technology of ultra-high heat resistant carbonized silica continuous fiber (Hinikaron) |
| 1998 |
Yamanashi Factory ISO9001 certification acquired |
| 1999 |
Absorbed and merged with Shin-Nippon Carbon Co., Ltd., becoming Shiga Factory |
| 2003 |
Established Shin-Nippon Techno-Carbon Co., Ltd., a subsidiary focusing on special carbon products |
| 2005 |
Established Japan Carbon-Lorene Co., Ltd., a sales company for non-penetrating graphite products for the chemical industry |
| 2006 |
Started production of 32-inch artificial graphite electrodes for direct current electric furnaces |
| 2010 |
Changed the company name from Japan Carbon-Lorene Co., Ltd. to Japan Carbon Melsen Co., Ltd. |
| 2012 |
Established NGS Advanced Fiber Co., Ltd. |
| 2015 |
Celebrated 100th anniversary. Moved headquarters from Hachijo in Chuo-ku, Tokyo, to Kyobashi, Chuo-ku, Tokyo |
| 2016 |
Acquired shares of KOGO Kornmeyer Graphi and made it a related company, renamed related company to Nippon Kornmeyer Carbon Group |
| 2016 |
Acquired shares of KOGO Kornmeyer Graphi and made it a related company |
| 2016 |
Renamed related company KOGO Kornmeyer Graphi to Nippon Kornmeyer Carbon Group |
| 2016 |
Liquidated related company Japan Carbon-Melsen Co., Ltd. |
| 2018 |
Merged Tohoku Techno-Carbon Co., Ltd. as a surviving company, absorbed and merged Keihan Carbon Industries Co., Ltd. and Kyushu Carbon Industries Co., Ltd., renamed to NTCM Inc., established Nippon Carbon Europe GmbH in Germany and NIPPON CARBON OF AMERICA, LLC in the USA, moved headquarters from Hachijo to Kyobashi, Chuo-ku, Tokyo |
| 2018 |
Merged subsidiaries Tohoku Techno-Carbon Co., Ltd. as a surviving company, absorbed and merged Keihan Carbon Industries Co., Ltd. and Kyushu Carbon Industries Co., Ltd., renamed to NTCM Inc. |
| 2018 |
Established Nippon Carbon Europe GmbH in Germany |
| 2018 |
Established NIPPON CARBON OF AMERICA, LLC in the United States |
| 2018 |
Relocated headquarters from Kyobashi, Chuo-ku, Tokyo to Hatchobori, Chuo-ku, Tokyo |
| 2019 |
Yamanashi Factory closure |
| 2019 |
Established Nippon Carbon Shanghai Co., Ltd in China |
| 2022 |
Moved from the First Section of the Tokyo Stock Exchange to the Prime Market due to market classification review |
| 2023 |
Subsidiary Shin-Nippon Techno-Carbon Co., Ltd. renamed to Japan Techno-Carbon Co., Ltd. |
