Pacific Software Development Co., Ltd.

Pacific Software Development Co., Ltd. (パシフィックソフトウエア開発株式会社) is a Japanese software development company headquartered in Kochi City, Kochi Prefecture. It was founded in September 1972 by Masahiko Nakatani, who became its first representative director and president. The company began with system support work for minicomputers and microcomputers and expanded into microcomputer sales in 1974, later building a broad software engineering business. The company's core business is software development for logistics, electronic payment and electronic device applications, alongside system development in IoT, AI and medical fields. It also develops and sells its own products, including the AI automatic feeding system "Esa Robo" (餌ロボ) and the marine civil-engineering advanced information technology service "Sea Vision". Its product line has historically included the multi-window text editor "ZED", the ultrasonic depth sounders "SeaVision 500", "SeaVision 501" and "SeaVision SV-1000", the dredging construction management system "SeaVision Navigator", and the forestry material-production evaluation simulation "LogHouse". Pacific Software Development is a privately held company with stated capital of 12 million yen. As of April 2026 it reported 85 employees and sales of 940 million yen for the fiscal year ended March 2025. Its fiscal year closes in March. The company is led by representative director and president Kazuaki Nakajo, with a board that includes senior managing director and sales manager Takashi Nakano, director and first engineering department manager Toshiaki Kawazawa, and director and second engineering department manager Tomoyoshi Saito. It operates a head office in Kochi and an Osaka satellite office in Nishi-ku, Osaka. The company has been recognized for service quality and workplace health, including selection as a first-round "High Service Japan 300" company in 2007 and certification as a "Health and Productivity Management Outstanding Organization 2026" (small and medium-sized enterprise category) in March 2026. It also runs the fishing-spot information site "Fishon Shikoku", which became an official NTT Docomo site in 2008. The company describes itself as aiming to contribute to people and society by combining hardware and software and by taking on increasingly advanced technology.

Pacific Software Development Co., Ltd. was established in September 1972 in Kochi City by Masahiko Nakatani, with capital of 500,000 yen. Nakatani became the first representative director and president, and the company began system support work for minicomputers and microcomputers. In April 1974 it started selling microcomputers, moving from support into hardware sales and systems. In July 1979 the company opened an Osaka sales office in Kita-ku, Osaka, which later became the Osaka satellite office. A reorganization in January 1983 created the head office and System Technology Center in Kochi and the System Development Center in Osaka, with the latter moving to Nishi-ku, Osaka. In August 1990 the company began selling the multi-window text editor "ZED", and in December of that year it established a subsidiary, Planet Co., Ltd., with capital of 20 million yen. Planet began full-scale operations in April 1991. In August 1995 the company became the first in Kochi Prefecture to be certified under the Small and Medium Enterprise Creative Activity Promotion Act. In March 1997 it began selling the ultrasonic depth sounder "SeaVision 500". In October 1998 it started research and development on a data-driven media processor. In January 1999 the PSD Group moved into a newly built office building in the Frontier Kochi industrial park. In September 1999 it began selling "LogHouse", a simulation for forestry and material production evaluation. In January 2002 the company launched the new ultrasonic depth sounder "SeaVision 501". In April 2006 it absorbed its subsidiary Planet Co., Ltd. In October 2006 it opened the fishing-spot information site "Fishon Shikoku". In December 2007 it was selected as a first-round "High Service Japan 300" company by the Service Industry Productivity Council of the Japan Productivity Center for Socio-Economic Development. In October 2008 "Fishon Shikoku" became an official NTT Docomo site. In October 2012 it began selling the dredging construction management system "SeaVision Navigator". In June 2016 it began taking orders for the new ultrasonic depth sounder "SeaVision SV-1000". By the 2020s the company continued to develop software for logistics, electronic payment and electronic devices, and to pursue system development in IoT, AI and medical fields. It also marketed its own products, notably the AI automatic feeding system "Esa Robo" and the marine civil engineering IT service "Sea Vision". In March 2026 it was certified as a Health and Productivity Management Outstanding Organization 2026 (small and medium-sized enterprise category). As of April 2026 it reported 85 employees and sales of 940 million yen for the fiscal year ended March 2025.

• Founded in Kochi City by Masahiko Nakatani with capital of 500,000 yen; began minicomputer and microcomputer system support.

• Began selling microcomputers.

• Opened Osaka sales office in Kita-ku, Osaka (later Osaka satellite office).

• Reorganized into head office and System Technology Center in Kochi and System Development Center in Osaka; moved the latter to Nishi-ku, Osaka.

• Began selling the multi-window text editor "ZED".

• Established subsidiary Planet Co., Ltd. with capital of 20 million yen.

• Subsidiary Planet Co., Ltd. began full-scale operations.

• Became the first company in Kochi Prefecture certified under the Small and Medium Enterprise Creative Activity Promotion Act.

• Began selling the ultrasonic depth sounder "SeaVision 500".

• Started research and development on a data-driven media processor.

• PSD Group built and moved into a new office building in the Frontier Kochi industrial park.

• Began selling "LogHouse", a forestry and material production evaluation simulation.

• Began selling the new ultrasonic depth sounder "SeaVision 501".

• Absorbed and merged subsidiary Planet Co., Ltd.

• Opened the fishing-spot information site "Fishon Shikoku".

• Selected as a first-round "High Service Japan 300" company by the Service Industry Productivity Council.

• "Fishon Shikoku" became an official NTT Docomo site.

• Began selling the dredging construction management system "SeaVision Navigator".

• Began taking orders for the new ultrasonic depth sounder "SeaVision SV-1000".

• Certified as a Health and Productivity Management Outstanding Organization 2026 (small and medium-sized enterprise category).

A regional Japanese software engineering firm combining custom system development with proprietary AI, marine and measurement products.

• Esa Robo (AI automatic feeding system)

  Proprietary AI-based automatic feeding system developed and sold by the company.

• Sea Vision

  Marine civil engineering advanced information technology service.

• SeaVision 500

  Ultrasonic depth sounder launched in 1997.

• SeaVision 501

  New ultrasonic depth sounder launched in 2002.

• SeaVision SV-1000

  New ultrasonic depth sounder for which orders began in 2016.

• SeaVision Navigator

  Dredging construction management system launched in 2012.

• ZED

  Multi-window text editor launched in 1990.

• LogHouse

  Forestry and material production evaluation simulation launched in 1999.

• Fishon Shikoku

  Fishing-spot information website opened in 2006; became an official NTT Docomo site in 2008.

1. 1パシフィックソフトウエア開発株式会社pacificsoftware.co.jp
2. 2会社概要 | パシフィックソフトウエア開発株式会社pacificsoftware.co.jp
3. 3Pacific Software Development Co., Ltd. (Japan) - Wikidatawikidata.org