History

1930s-1940s

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.
May 1937	Moved to Imai-cho, Kita-ku, Osaka, and incorporated.
Jun. 1939	Moved to Gamo-cho, Joto-ku, Osaka City, and increased capital to ¥1,000,000.
May 1942	Designated as a Navy-controlled factory and ordered to manufacture valves for transport ships.

1950s-1960s

Jan. 1950	Reopened Tokyo office and opened Kyushu office.
Aug. 1955	A scientific and technological research grant is awarded by the Ministry of Transport for "Research on desuperheater."
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.
Dec. 1958	Increased capital to ¥28,000,000.
May 1959	Celebrating the 30th anniversary of our founding, we purchased land in Daito City as a site for factory expansion.
Dec. 1959	Increased capital to ¥35,000,000.
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."
Nov. 1960	The first phase of construction at the Daito factory was completed and the machine shop began operation.
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.
Oct. 1961	Completed second-phase construction of the Daito Plant and used the new plant as an assembly shop.
Oct. 1962	Increased capital to ¥56,000,000.
Jun. 1963	A scientific and technological research grant is awarded by the Ministry of Transport for "research on rubber-lined butterfly valves."
Nov. 1965	Mr. Hiroshi Nakakita was inaugurated as the new president.
Mar. 1968	Obtained High-Pressure Gas Class 2 certification.

1970s-1980s

Jan. 1970	Increased capital to ¥112,000,000.
May 1970	Completed construction of the Daito Plant and consolidated all relevant divisions into the new plant.
Jun. 1970	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.
Jun. 1971	Obtained approval from the Ministry of International Trade and Industry for welding methods based on the Electricity Business Law.
Dec. 1971	Increased capital to ¥370,000,000 and listed shares on the Osaka Securities Exchange.
Dec. 1972	Completed a new office building at the Daito Plant to integrate company operations and relocated head office operations.
Dec. 1973	Increased capital to ¥600,000,000.
Dec. 1974	Increased capital to ¥1,000,000,000.
Jun. 1975	Increased capital to ¥1,150,000,000.
May 1976	Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).
Jan. 1979	Obtained American Society of Mechanical Engineers (ASME) Certificates of Authorization to use safety valve V and UV stamps.
Mar. 1985	A large computer production management system (NAPS) was introduced to improve efficiency and reliability.
Jun. 1988	CAD-based design OA system (NADAS) was introduced to improve design efficiency and reliability.
Jul. 1988	Expanded the scope of high-pressure gas and Ministerial Certification (Ministry of International Trade and Industry).
Jan. 1989	Fully equipped with cutting-edge machine tools including machining centers.

1990s-2000s

Apr. 1993	Completed major upgrade to state-of-the-art MC/NC machine tool with robot.
Aug. 1994	Promoted networking by introducing a large amount of CAD and electronic files, and aimed to increase the strength of the design system.
Sep. 1994	Obtained certification for the “Quality System” for product design and manufacturing based on International Standards (ISO 9001). (Certifying body: LRQA)
Feb. 1997	Mr. Hiroshi Nakakita was inaugurated as the chairman and Mr. Osamu Nakakita as president.
May 1999	Introduced a three-dimensional measuring machine and demonstrated its power in verifying the machining accuracy of parts.
Jun. 1999	Rebuild the electronic filing system and improve document management.
Oct. 2000	A sales support system was built and sales operations became more efficient.
Mar. 2001	Document management has been improved by introducing an intelligent document management system.
Aug. 2002	Renewal of large computers, CAD reconstruction, and introduction of product configuration management (PDMACE).
Feb. 2003	Obtained CE marking certification for Pressure Equipment Directive (PED) products. (Certifying body: LR)
Aug. 2004	Mr. Kenichi was inaugurated Nakakita as president.
Aug. 2005	Collaborated with Sasakura Co., Ltd. for the manufacture and sales of cryogenic butterfly valves for LNG ships.
Dec. 2009	Completed the Nuclear Valve Assembly Shop.

2010s-

Jan. 2010	Established a development office within the engineering department.
Nov. 2011	Obtained environmental management system (EcoAction 21) certification for the head office plant.
May 2013	A cell production system was adopted in the processing department to pursue productivity and shorten residence time.
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.
Nov. 2013	Obtained environmental management system(EcoAction 21) certification for the Tokyo and Kitakyushu offices.
Oct. 2014	Obtained MED mark Certification from DNV GL for cargo Hold Water Ingress Alarm Systems.
May 2015	By introducing a 5-axis machining center, we worked on process consolidation and improved processing productivity.
Jun. 2015	Obtained IECEx Certification for intrinsically safe explosion-proof solenoid valves.
Nov. 2016	President Kenichi Nakakita receives the Medal with Yellow Ribbon
Jan. 2018	Established research and development office
Aug. 2019	Mr. Kenichi Nakakita was inaugurated as the chairman and Mr. Teruhisa Miyata as president.
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.
Apr. 2022	Due to a review of the market classification of the Tokyo Stock Exchange, we have moved to the Standard Market.