| 1917 |
私ども日本炭酸瓦スは1917年（大正6年）の創業から100年以上の歴史があります。 |
| 1917 |
創業 : 日本初の液化炭酸ガス製造工場を浅草に建設 |
| 1917-06-12 |
NTG was founded as Japan’s first liquefied carbon dioxide gas manufacturing plant in Asakusa, Tokyo. |
| 1948 |
工場を新設し、プレーンソーダ水の製造販売開始 |
| 1948 |
A factory was constructed in Tokyo to manufacture and distribute plain soda water. |
| 1950 |
1950年代より炭酸ガスを小さなボンベに充填したミニガスカートリッジの開発そして製造・販売を開始しました。 |
| 1955 |
ソーダサイホン（炭酸水製造器）を開発し、製造販売開始 |
| 1955 |
NTG Soda Siphon was developed and went on sale. |
| 1958 |
綾瀬工場（当時）稼動 : 小型高圧ガス入り容器（ミニガスカートリッジ）の製造を開始し、消火器業界、ガス銃業界、救命胴衣業界へ販路拡大 |
| 1958 |
Operations started at the Ayase factory. |
| 1958 |
NTG started manufacturing mini high-pressure gas cylinders for fire extinguisher, air gun, and lifejacket applications. |
| 1969 |
NTG opened a U.S. office in New York. |
| 1971 |
都賀工場（現都賀事業所）稼動 : ビール業界へ販路拡大 |
| 1971 |
Operations started at the Tsuga factory. |
| 1971 |
NTG expanded its business to the beer industry. |
| 1972 |
窒素ガスカートリッジの製造販売開始 |
| 1972 |
NTG started manufacturing nitrogen cylinders. |
| 1974 |
医薬品製造の許可工場となり、医療用酸素ガスカートリッジの製造販売開始 : 炭酸ガスの食品添加物認定工場となる |
| 1974 |
Factory was granted approval to be a producer of medical oxygen cylinders in accordance with Japanese Pharmacopeia, and started manufacturing and distributing medical oxygen gas cylinders. |
| 1975 |
ＬＰガスカートリッジおよび小型溶接器（ミニトーチ）の製造販売開始 |
| 1975 |
NTG developed a compact welding torch, and started distributing it with LP gas cylinders. |
| 1976 |
A U.S. subsidiary, Nittan (U.S.A.) Inc.,was set up in San Diego, California. |
| 1977 |
業界初の安全封板付ミニガスカートリッジ開発 : 世界8ヶ国で特許取得 |
| 1977 |
NTG developed a safety sealing cap and obtained a patent on it in 8 different countries. |
| 1980 |
本社社屋を綾瀬工場（当時）隣接地に落成 |
| 1980 |
Main office building was constructed on the premises adjacent to the Ayase factory. |
| 1982 |
小型酸素吸入器を開発し、製造販売開始 |
| 1982 |
A compact oxygen inhaler was developed and went on sale. |
| 1983 |
減圧弁流量調整器の製造販売開始 |
| 1983 |
Regulator production started. |
| 1985 |
混合ガスカートリッジの製造販売開始 |
| 1986 |
小型酸素吸入器の厚生省医療用具承認番号を取得し、医療業界へ販路拡大 |
| 1989 |
アメリカLeland社の株を45％取得し、アメリカ市場へ販路拡大 : 高圧ガス保安協会（KHK）小型高圧ガス容器製造認定工場となる |
| 1989 |
NTG acquired 45% of Leland Limited, Inc. shares to expand its business into the American market. |
| 1989 |
NTG was certified as a producer of mini high-pressure gas cylinders by the High Pressure Gas Safety Institute of Japan (KHK). |
| 1994 |
日本酸素株式会社（現大陽日酸株式会社）の子会社となる |
| 1994 |
NTG became a subsidiary of Nippon Sanso Co.,Ltd. (current Taiyo Nippon Sanso Corporation) |
| 1995 |
ドイツに現地法人NITTAN EUROPE（現NTG Europe）設立 |
| 1995 |
A German subsidiary, Nittan Europe GmbH, was set up in Menden. |
| 1995 |
A U.S. factory was opened in Batesville, Mississippi. |
| 1996 |
Operations started at the Batesville factory. |
| 1996 |
Nittan (U.S.A.) Inc. moved to Batesville, Mississippi. |
| 1998 |
都賀工場（現都賀事業所）にミニガスカートリッジ生産設備を統合 |
| 1998 |
The mini gas cylinder production facility at the Ayase factory was integrated into the Tsuga factory. |
| 2000 |
ミニガスカートリッジのISO9001認証取得 |
| 2000 |
NTG was certified according to ISO 9001, the Standard for Quality Management Systems. |
| 2001 |
The Batesville factory closed. |
| 2001 |
Nittan (U.S.A.) Inc. moved to Palm Springs, California. |
| 2004 |
NTG’s parent company, Nippon Sanso Co.,Ltd., merged with Taiyo Toyo Sanso Co.,Ltd. and changed its name to Taiyo Nippon Sanso Corporation. |
| 2005 |
綾瀬工場（当時）を都賀工場（現都賀事業所）に集約 : CO2エスプーマの製造販売開始 |
| 2005 |
All facilities at the Ayase factory were integrated into the Tsuga factory. |
| 2006 |
エスプーマアドバンスの製造販売開始 : 医療機器のISO13485認証取得 |
| 2006 |
NTG obtained ISO 13485 certification for some oxygen products. |
| 2007 |
溶接酸素容器の製造販売開始 : 日本、イギリス、ドイツ、フランスで特許取得 |
| 2007 |
A weld-sealed oxygen cylinder was developed and went on sale. |
| 2007 |
NTG obtained UL 1191 certification, the UL Standard for Components for Personal Flotation Devices. |
| 2007 |
Nittan (U.S.A.) Inc. was closed. |
| 2008 |
美容機器用レギュレーターの製造販売開始 |
| 2009 |
都賀事業所に機器工場を新設 : 泡マスターの製造販売開始 |
| 2009 |
A regulator production facility was constructed within the Tsuga factory premises. |
| 2009 |
NTG obtained ISO 12402-7 certification. |
| 2009 |
Nittan Europe GmbH changed its name to NTG Europe GmbH. |
| 2013 |
A new CO : 2 : gas tank (Cold Evaporator) was installed at the Tsuga factory. |
| 2014 |
NTG’s parent company, Taiyo Nippon Sanso Corporation （TNSC）, became an affiliate of Mitsubishi Chemical Holdings Corporation. |
| 2016 |
NTG Europe moved to Dortmund. |
| 2017 |
創立100周年 |
| 2017 |
NTG marked its 100th anniversary. |
| 2019 |
資本金を1億円に減資（税法上、中小企業扱いとなる） |
| 2019 |
A new cylinder production facility was constructed within the Tsuga factory premises. |
| 2020 |
2020年に生産量の増加や合理化のために都賀事業所に第2工場を建設し、今後も最新鋭の設備を導入する予定です。 |
| 2020 |
都賀第2工場稼動開始 |
| 2020 |
Operations started at the new cylinder production facility. |
| 2020 |
NTG’s parent company, TNSC, became an affiliate of Nippon Sanso Holdings Corporation. |
| 2021 |
第4次中期（5ヵ年）計画開始 |
