株式会社中北製作所

初代社長中北辨造が大阪市北区松ヶ枝町において個人組織で自動調節弁の製作をはじめる。

May 1930 : Commenced production of automatic control valves at Matsugae-cho, Kita-ku, Osaka, under a private enterprise owned by Mr. Benzo Nakakita, the first president of Nakakita Seisakusho Co., Ltd.

Commenced production of automatic control valves at Matsugae-cho, Kita-ku, Osaka, under a private enterprise owned by Mr. Benzo Nakakita, the first president of Nakakita Seisakusho Co., Ltd.

大阪市北区今井町に移転し、会社組織に変更する。

May 1937 : Moved to Imai-cho, Kita-ku, Osaka, and incorporated.

Moved to Imai-cho, Kita-ku, Osaka, and incorporated.

大阪市城東区蒲生町に移転し、資本金100万円とする。

1939年6月：大阪市城東区ガモ町に移転し、資本金を1,000,000円に増資しました。

大阪市城東区ガモ町に移転し、資本金を1,000,000円に増資しました。

海軍管理工場に指定され、輸送船用バルブの製作を命じられる。

May 1942 : Designated as a Navy-controlled factory and ordered to manufacture valves for transport ships.

Designated as a Navy-controlled factory and ordered to manufacture valves for transport ships.

東京営業所を再開、九州出張所を開設する。

Jan. 1950 : Reopened Tokyo office and opened Kyushu office.

Reopened Tokyo office and opened Kyushu office.

運輸省から〈デスーパヒータに関する研究〉に対して試験研究助成金を交付される。

A scientific and technological research grant is awarded by the Ministry of Transport for "Research on desuperheater."

特定機械振興法適用工場の指定をもとに、通産省の推薦で日本開発銀行からの融資を受け、新鋭工作機械、検査設備など充実をはかる。

Mar. 1958 : At the recommendation of the Ministry of International Trade and Industry, the company received a loan from the Japan Development Bank to upgrade its equipment, including state-of-the-art machine tools and inspection equipment.

At the recommendation of the Ministry of International Trade and Industry, the company received a loan from the Japan Development Bank to upgrade its equipment, including state-of-the-art machine tools and inspection equipment.

資本金2,800万円に増資する。

Dec. 1958 : Increased capital to ¥28,000,000.

Increased capital to ¥28,000,000.

創立30周年を迎え、工場拡張用地として大東市に用地を購入する。

1959年5月：創業30周年を記念し、大津市に土地を購入し工場拡張のための敷地としました。

創業30周年を記念し、大津市に土地を購入し工場拡張のための敷地としました。

資本金3,500万円に増資する。

Dec. 1959 : Increased capital to ¥35,000,000.

Increased capital to ¥35,000,000.

大東工場建設第1期工事に着手し、運輸省から〈ディーゼル船の冷却水自動温度調整に関する研究〉に対して試験研究助成金の交付を受ける。

Jun. 1960 : Completed first-phase construction of the Daito Plant and transferred the machining shop to this location.

Jun. 1960 : A scientific and technological research grant is awarded by the Ministry of Transport for 'research on automatic temperature adjustment of cooling water for diesel ships.'

大東工場建設第1期工事に着手。

運輸省から〈ディーゼル船の冷却水自動温度調整に関する研究〉に対して試験研究助成金の交付を受ける。

Completed first-phase construction of the Daito Plant and transferred the machining shop to this location.

A scientific and technological research grant is awarded by the Ministry of Transport for "research on automatic temperature adjustment of cooling water for diesel ships."

大東工場第1期工事が完成し、機械工作工場を稼働する。

Nov. 1960 : The first phase of construction at the Daito factory was completed and the machine shop began operation.

The first phase of construction at the Daito factory was completed and the machine shop began operation.

特定機械振興法による第2次融資を日本開発銀行から受け、大東機械工場に新鋭工作機械を充足させる。

Dec. 1960 : Received a second loan from the Japan Development Bank under the Specified Machinery Promotion Act to equip Daito Machinery Factory with cutting-edge machine tools.

Received a second loan from the Japan Development Bank under the Specified Machinery Promotion Act to equip Daito Machinery Factory with cutting-edge machine tools.

大東工場第2期工事が完成し、組立工場として稼働する。

Oct. 1961 : Completed second-phase construction of the Daito Plant and used the new plant as an assembly shop.

Completed second-phase construction of the Daito Plant and used the new plant as an assembly shop.

資本金5,600万円に増資する。

Oct. 1962 : Increased capital to ¥56,000,000.

Increased capital to ¥56,000,000.

運輸省から〈ゴムライニング式バタフライ弁の研究〉に対して科学技術研究助成金を交付される。

Jun. 1963 : A scientific and technological research grant is awarded by the Ministry of Transport for 'research on rubber-lined butterfly valves.'

A scientific and technological research grant is awarded by the Ministry of Transport for "research on rubber-lined butterfly valves."

初代社長中北辨造死去により、中北博が第二代取締役社長に就任する。

Nov. 1965 : Mr. Hiroshi Nakakita was inaugurated as the new president.

Mr. Hiroshi Nakakita was inaugurated as the new president.

高圧ガス第二種認定を取得する。

Mar. 1968 : Obtained High-Pressure Gas Class 2 certification.

Obtained High-Pressure Gas Class 2 certification.

資本金1億1千2百万円に増資する。

Jan. 1970 : Increased capital to ¥112,000,000.

Increased capital to ¥112,000,000.

大東新工場完成し、本社工場の大東への集約完了。

May 1970 : Completed construction of the Daito Plant and consolidated all relevant divisions into the new plant.

Completed construction of the Daito Plant and consolidated all relevant divisions into the new plant.

創立40周年を迎え、関係先に新工場完成を披露する。

Jun. 1970 : Celebrating the 40th anniversary of its founding, the company unveiled the completion of its new factory to related parties.

Celebrating the 40th anniversary of its founding, the company unveiled the completion of its new factory to related parties.

Aug. 1970 : Received a research grant from the Marine Equipment Development Association.

財団法人船舶用機器開発協会から弁開度計並びにストリップ終了検知装置に対し研究補助金の交付を受ける。

Received a research grant from the Marine Equipment Development Association.

通産省から電気事業法に基づく溶接方法の認可を受ける。

Jun. 1971 : Obtained approval from the Ministry of International Trade and Industry for welding methods based on the Electricity Business Law.

Obtained approval from the Ministry of International Trade and Industry for welding methods based on the Electricity Business Law.

資本金3億7千万円に増資し、大阪証券取引所に上場する。

Dec. 1971 : Increased capital to ¥370,000,000 and listed shares on the Osaka Securities Exchange.

資本金3億7千万円に増資し、株式を大阪証券取引所に上場する。

Increased capital to ¥370,000,000 and listed shares on the Osaka Securities Exchange.

大東工場内に新社屋完成し、本社業務を移転する。

1972年12月：大津工場に新しいオフィスビルを完成させ、会社業務を統合し、本社業務を移転しました。

業務の一体化を図るため大東工場内に新社屋完成。本社業務を移転する。

大津工場に新しいオフィスビルを完成させ、会社業務を統合し、本社業務を移転しました。

資本金6億円に増資する。

Dec. 1973 : Increased capital to ¥600,000,000.

Increased capital to ¥600,000,000.

資本金10億円に増資する。

Dec. 1974 : Increased capital to ¥1,000,000,000.

Increased capital to ¥1,000,000,000.

資本金11億5千万円に増資する。

Jun. 1975 : Increased capital to ¥1,150,000,000.

Increased capital to ¥1,150,000,000.

高圧ガス、種別大臣認定の認定取得範囲を拡大する。

May 1976 : Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

米国機械学会(ASME)から、安全弁V，UVスタンプ使用認定される。

Jan. 1979 : Obtained American Society of Mechanical Engineers (ASME) Certificates of Authorization to use safety valve V and UV stamps.

Obtained American Society of Mechanical Engineers (ASME) Certificates of Authorization to use safety valve V and UV stamps.

大型電算機による生産管理システム(NAPS)を導入し、効率化と確実性を図る。

Mar. 1985 : A large computer production management system (NAPS) was introduced to improve efficiency and reliability.

A large computer production management system (NAPS) was introduced to improve efficiency and reliability.

CAD投入による設計OAシステム(NADAS)を導入し、設計の効率化と確実性を図る。

Jun. 1988 : CAD-based design OA system (NADAS) was introduced to improve design efficiency and reliability.

CAD-based design OA system (NADAS) was introduced to improve design efficiency and reliability.

高圧ガス種別大臣認定の認定取得範囲を拡大する。

Jul. 1988 : Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).

マシニングセンター(MC)をはじめ新鋭工作機械を充足させる。

Jan. 1989 : Fully equipped with cutting-edge machine tools including machining centers.

Fully equipped with cutting-edge machine tools including machining centers.

ロボット付MC/NC新鋭工作機械への大幅な更新（再配置）を進め、完了する。

Apr. 1993 : Completed major upgrade to state-of-the-art MC/NC machine tool with robot.

Completed major upgrade to state-of-the-art MC/NC machine tool with robot.

CAD(WS)及び電子ファイルの大量投入によるネットワーク化を進め、設計OAシステムの戦力アップを図る。

Aug. 1994 : Promoted networking by introducing a large amount of CAD and electronic files, and aimed to increase the strength of the design system.

Promoted networking by introducing a large amount of CAD and electronic files, and aimed to increase the strength of the design system.

認証機関(LRQA社)により国際規格(ISO9001)に基づく製品の設計・製造に対する《品質システム》を認証される。

Sep. 1994 : Obtained certification for the “Quality System” for product design and manufacturing based on International Standards (ISO 9001). (Certifying body: LRQA)

Obtained certification for the “Quality System” for product design and manufacturing based on International Standards (ISO 9001). (Certifying body: LRQA)

中北修が第三代社長に就任する。

Feb. 1997 : Mr. Hiroshi Nakakita was inaugurated as the chairman and Mr. Osamu Nakakita as president.

Mr. Hiroshi Nakakita was inaugurated as the chairman and Mr. Osamu Nakakita as president.

三次元測定機を投入し、部品の加工精度の検証に威力を発揮。

May 1999 : Introduced a three-dimensional measuring machine and demonstrated its power in verifying the machining accuracy of parts.

Introduced a three-dimensional measuring machine and demonstrated its power in verifying the machining accuracy of parts.

電子ファイリングシステムを再構築し書類管理の充実を図る。

Jun. 1999 : Rebuild the electronic filing system and improve document management.

Rebuild the electronic filing system and improve document management.

営業支援システム構築により営業業務の効率向上を図る。

Oct. 2000 : A sales support system was built and sales operations became more efficient.

A sales support system was built and sales operations became more efficient.

知的文書管理システム導入により文書管理の充実を図る。

Mar. 2001 : Document management has been improved by introducing an intelligent document management system.

Document management has been improved by introducing an intelligent document management system.

大型電算機の更新及びCAD再構築と製品構成管理(PDMACE)の導入。

Aug. 2002 : Renewal of large computers, CAD reconstruction, and introduction of product configuration management (PDMACE).

Renewal of large computers, CAD reconstruction, and introduction of product configuration management (PDMACE).

CEマーキング PED（圧力機器指令）認証取得（認証機関 LRQA社）

Feb. 2003 : Obtained CE marking certification for Pressure Equipment Directive (PED) products. (Certifying body: LR)

Obtained CE marking certification for Pressure Equipment Directive (PED) products. (Certifying body: LR)

中北健一が第四代社長に就任する。

Aug. 2004 : Mr. Kenichi was inaugurated Nakakita as president.

Mr. Kenichi was inaugurated Nakakita as president.

LNG船用超低温バタフライバルブの製造・販売に関し株式会社ササクラと業務提携。

Aug. 2005 : Collaborated with Sasakura Co., Ltd. for the manufacture and sales of cryogenic butterfly valves for LNG ships.

Collaborated with Sasakura Co., Ltd. for the manufacture and sales of cryogenic butterfly valves for LNG ships.

東工場完成。

Dec. 2009 : Completed the Nuclear Valve Assembly Shop.

東工場完成

Completed the Nuclear Valve Assembly Shop.

技術部内に開発室設立。

Jan. 2010 : Established a development office within the engineering department.

技術部内に開発室設立

Established a development office within the engineering department.

本社工場にてエコアクション21認証取得。

2011年11月：本社工場で環境管理システム（EcoAction 21）の認証を取得しました。

エコアクション21認証取得（本社工場）

本社工場で環境管理システム（EcoAction 21）の認証を取得しました。

加工課にてセル生産方式を採用し、生産性を追求し、滞留時間の短縮を図る。

May 2013 : A cell production system was adopted in the processing department to pursue productivity and shorten residence time.

A cell production system was adopted in the processing department to pursue productivity and shorten residence time.

東京証券取引所と大阪証券取引所の統合により、東京証券取引所に上場となる。

中北健一社長が「海の日」海事関係功労者大臣表彰を受彰。

Jul. 2013 : Listed shares on the Tokyo Stock Exchange in conjunction with the merging of the Tokyo Stock Exchange and Osaka Securities Exchange.

Jul. 2013 : President Kenichi Nakakita receives the Minister's Award for Meritorious Contributions to Maritime Affairs.

中北健一社長が「海の日」海事関係功労者大臣表彰を受彰

Listed shares on the Tokyo Stock Exchange in conjunction with the merging of the Tokyo Stock Exchange and Osaka Securities Exchange.

President Kenichi Nakakita receives the Minister's Award for Meritorious Contributions to Maritime Affairs.

エコアクション21（東京営業所・北九州営業所）認証取得。

Nov. 2013 : Obtained environmental management system(EcoAction 21) certification for the Tokyo and Kitakyushu offices.

エコアクション21（東京営業所・北九州営業所）認証取得

Obtained environmental management system(EcoAction 21) certification for the Tokyo and Kitakyushu offices.

貨物倉浸水警報装置のMEDマーク認証をDNV・GLより取得。

Oct. 2014 : Obtained MED mark Certification from DNV GL for cargo Hold Water Ingress Alarm Systems.

貨物倉浸水警報装置のMEDマーク認証をDNV・GLより取得

Obtained MED mark Certification from DNV GL for cargo Hold Water Ingress Alarm Systems.

5軸立型マシニングセンタの導入により、工程集約に取組み、加工生産性の向上を図る。

May 2015 : By introducing a 5-axis machining center, we worked on process consolidation and improved processing productivity.

By introducing a 5-axis machining center, we worked on process consolidation and improved processing productivity.

本質安全防爆型電磁弁のIECEx認証を取得。

Jun. 2015 : Obtained IECEx Certification for intrinsically safe explosion-proof solenoid valves.

本質安全防爆型電磁弁のIECEx認証を取得

Obtained IECEx Certification for intrinsically safe explosion-proof solenoid valves.

中北健一社長が黄綬褒章受章。

Nov. 2016 : President Kenichi Nakakita receives the Medal with Yellow Ribbon.

中北健一社長が黄綬褒章受章

President Kenichi Nakakita receives the Medal with Yellow Ribbon.

研究開発室設立。

Jan. 2018 : Established research and development office.

研究開発室設立

Established research and development office.

宮田彰久が第五代社長に就任。

Aug. 2019 : Mr. Kenichi Nakakita was inaugurated as the chairman and Mr. Teruhisa Miyata as president.

宮田彰久が第五代社長に就任する。

Mr. Kenichi Nakakita was inaugurated as the chairman and Mr. Teruhisa Miyata as president.

国立研究開発法人NEDOの水素社会構築技術開発事業に採択される。

Jun. 2020 : Recognized by Japan New Energy and Industrial Technology Development Organization (NEDO) for participation in the Development of Technologies for Realizing the Hydrogen Society project.

国立研究開発法人新エネルギー・産業技術総合開発機構（NEDO）の水素社会構築技術開発事業に採択

Recognized by Japan New Energy and Industrial Technology Development Organization (NEDO) for participation in the Development of Technologies for Realizing the Hydrogen Society project.

東京証券取引所の市場区分見直しにより、スタンダード市場に移行となる。

Apr. 2022 : Due to a review of the market classification of the Tokyo Stock Exchange, we have moved to the Standard Market.

Due to a review of the market classification of the Tokyo Stock Exchange, we have moved to the Standard Market.