Hitachi Ltd.

Established as a repair factory attached to Hitachi Mine at the Kihara Mining Office.

Founded the company, completed a 5-horsepower induction motor. Established as a repair shop attached to the Hitachi Mine at the Kurowara Mining Office.

Completed a 2 kVA transformer.

Started manufacturing AC ammeters and voltmeters.

Commenced production of fans.

Completed a 10,000-horsepower waterwheel. Started manufacturing fans.

With both Hitachi and Kameido factories, it became independent as Hitachi Manufacturing Co., Ltd.

Acquired Kasado Shipyard from Nippon Kisen Co., Ltd., and expanded the Kasado factory.

The first large domestically produced electric locomotive.

Completed the ED15 electric locomotive (the first large domestically produced unit).

Started manufacturing overhead transformers.

Completed a 10,000 A electrolytic cell.

Completed the first electric refrigerator.

Started manufacturing elevators. Completed the first electric refrigerator.

Completed a 23,600-horsepower Ilgun set.

Added seven factories, including the Tokusa Factory.

Absorbed and merged with Kokusan Kogyo Co., Ltd., and added seven factories including the Tokusa plant.

Separated from Hitachi Factory to form Hitachi Research Institute.

Established the Taga plant, and the Hitachi Research Institute became independent from the Hitachi plant.

Completed a 5,000-line private automatic exchange and established the Mito factory.

Completed a 5,000-line private automatic exchange. : Established the Mito plant.

Established the Central Research Institute.

Completed an 85,000 kW Francis turbine and a 70,000 kVA AC generator.

Completed an 85,000-kW Francis turbine and a 70,000-kVA AC generator. : Absorbed and merged with Riken Vacuum Industry Co., Ltd., and added the Mochihara plant.

Shimizu plant separated from Kameari plant; Tochigi plant separated from Tagawa plant.

The Shimizu plant became independent from the Kameari plant. : The Tochigi plant became independent from the Taga plant.

Completed the first U05 Power Shovel.

Completed a 6,500 kW Kaplan turbine and a 7,000 kVA AC generator.

Completed a 6,500-kW Kaplan turbine and a 7,000-kVA AC generator (Japan's first umbrella-shaped generator).

Completed a 21,000 kW two-stage turbine pump.

Completed a pure low-pressure 300 m³/h air separation unit. Completed a 55,000 kW hydrogen-cooled turbine.

Completed a pure low-pressure 300 m³/h air separation unit. : Completed a 55,000-kW hydrogen-cooled turbine.

Completed the first domestically produced large strip mill.

Completed a 100,000 kW Francis turbine and a 93,000 kVA AC generator.

Completed a DF90 diesel-electric locomotive.

Completed the DF90 diesel-electric locomotive (Japan's first). : Hitachi Metal Industry Co., Ltd. (now Hitachi Metals Co., Ltd.) and Hitachi Electric Wire Co., Ltd. became independent.

Kokubun plant separated from the Hitachi plant.

Completed a 6-stone ultra-compact portable transistor radio. At the Brussels World’s Fair, the HS-6 and HM-3 electron microscopes won the Grand Prix.

Completed a 6‑gram transistor ultra‑compact portable radio. : At the Brussels World Fair, the HS‑6 and HM‑3 electron microscopes won the Grand Prix.

Completed the HITAC301 electronic computer (using transistors). Established a new Yokohama plant. Renamed the Transistor Research Institute to Musashi plant.

Completed the HITAC301 electronic computer (using transistors). : Established the Yokohama plant. : Renamed the Transistor Research Institute to Musashi Plant.

Developed a cubic-type refrigerator. Completed the MARS-1 seat reservation system for the national railway.

Developed a cubic‑type refrigerator. : Completed the MARS‑1 seat reservation system for the Japanese National Railways.

Developed a mobile web gateway system. : Developed the SH‑Mobile application processor for mobile phones. : Reorganized the Financial & Distribution Systems Group, Industrial Systems Group, Public Systems Group, Communications & Social Systems Group, and Information Computer Group into the System Solutions Group and the Information & Communications Platform Group. : Established the Mu Solution Venture Company. : Split off the Measurement Instruments Group and Semiconductor Manufacturing Equipment Group, and reorganized Hitachi Technologies Inc. (formerly Nisshin Sangyo Co., Ltd.) as the successor company.

Developed the world's smallest 0.3‑mm corner non‑contact IC chip. : Split off the semiconductor group and reorganized as Renesas Technologies Inc. : Split off the hard disk drive business and reorganized as Hitachi Global Storage Technologies Inc. : Transitioned to a committee‑etc. established company subject to the special provisions of Chapter 2, Section 4 of the Act on Special Provisions Regarding Auditing of Companies.