C-POT

C-POT Inc. (株式会社C-POT) is a Japanese company established on January 11, 2018, headquartered in Chiyoda-ku, Tokyo, with capital of 22.5 million yen. It is part of the Shogakukan Group, and its representative director is Nobuhiro Aiga, who also serves as President and Representative Director of Shogakukan. The company focuses on the digital transformation of publishing, providing systems for centralized management of diverse content and for editorial support. C-POT's business activities include building databases of publishing content, integrated management of owned content, provision of internet services using that content, external distribution of content in various formats, and provision of editing support systems. Its service lineup includes C-POT DB (a publishing content database for centralized management and new value creation), Contents Edit System (for managing and editing large volumes of text-centric data), Contents Edit System for Multimedia (for managing and editing detailed information linked to multimedia), and IP Value Analysis (using data to clarify IP value and maximize the results of IP-related initiatives). The company also operates Kotobank, described as one of Japan's largest knowledge database sites, aggregating authoritative data. Through Kotobank, C-POT has added numerous reference works, including Shogakukan's NEO picture book series on fish, birds, animals, and insects, as well as dictionaries such as the Progressive English-Japanese Dictionary and Progressive Japanese-English Dictionary, and historical dictionaries from Yamakawa Shuppansha. In May 2022, C-POT announced a business partnership with Shogakukan Group's C-POT regarding Kotobank. C-POT's leadership includes Nobuhiro Aiga as Representative Director, Mutsumi Kato (Director of Shogakukan) and Tsuyoshi Noguchi (of CARTA HOLDINGS) as Directors, and Takao Dogaki as Auditor. The company continues to expand its content database and services, with recent additions to Kotobank in 2024 and 2025.

C-POT Inc. was established on January 11, 2018, as a company within the Shogakukan Group, with capital of 22.5 million yen. Its headquarters are located at 2-3-1 Hitotsubashi, Chiyoda-ku, Tokyo. The company was created to address the accelerating digitalization of publishing, where content formats and business models were diversifying and content management was becoming increasingly complex. From its inception, C-POT focused on providing systems for centralized management of various content and for editorial support. Its core services include C-POT DB, a publishing content database; Contents Edit System, for managing and editing large volumes of text-centric data; Contents Edit System for Multimedia, for managing and editing detailed information linked to multimedia; and IP Value Analysis, which uses data to clarify IP value and maximize the results of IP-related initiatives. A significant part of C-POT's activity is the operation of Kotobank, a free web encyclopedia described as one of Japan's largest knowledge database sites. Through Kotobank, C-POT has continuously added authoritative reference works. In December 2022, it added the Progressive English-Japanese Dictionary 5th Edition and Progressive Japanese-English Dictionary 4th Edition. In July 2023, it added the Yamakawa Japanese History Small Dictionary Revised New Edition and Yamakawa World History Small Dictionary Revised New Edition. In May 2024, it added Shogakukan's Illustrated Book NEO [New Edition] Insects, followed by Animals in October 2024, Birds in July 2025, and Fish in December 2025. In May 2022, C-POT announced a business partnership with Shogakukan Group's C-POT regarding Kotobank. In July 2020, C-POT provided Shogakukan magazine articles to support a joint development project by NEC and Coedo Brewery. The company's leadership includes Representative Director Nobuhiro Aiga, who is also President and Representative Director of Shogakukan; Directors Mutsumi Kato (Director of Shogakukan) and Tsuyoshi Noguchi (of CARTA HOLDINGS); and Auditor Takao Dogaki. C-POT continues to expand its content database and services, supporting the digital transformation of publishing.

• C-POT Inc. established with capital of 22.5 million yen.

• C-POT provides Shogakukan magazine articles to support joint development project by NEC and Coedo Brewery.

• C-POT announces business partnership with Shogakukan Group's C-POT regarding Kotobank.

• C-POT adds Progressive English-Japanese Dictionary 5th Edition and Progressive Japanese-English Dictionary 4th Edition to Kotobank.

• C-POT adds Yamakawa Japanese History Small Dictionary Revised New Edition and Yamakawa World History Small Dictionary Revised New Edition to Kotobank.

• C-POT adds Shogakukan's Illustrated Book NEO [New Edition] Insects to Kotobank.

• C-POT adds Shogakukan's Illustrated Book NEO [New Edition] Animals to Kotobank.

• C-POT adds Shogakukan's Illustrated Book NEO [New Edition] Birds to Kotobank.

• C-POT adds Shogakukan's Illustrated Book NEO [New Edition] Fish to Kotobank.

A Shogakukan Group company providing publishing content management, editing support systems, and knowledge database services to support digital transformation in publishing.

• C-POT DB

  Publishing content database for centralized management and new value creation.

• Contents Edit System

  System for managing and editing large volumes of text-centric data, ensuring up-to-date data and supporting data provision.

• Contents Edit System for Multimedia

  System for managing and editing detailed information linked to multimedia, ensuring up-to-date data and supporting data provision.

• IP Value Analysis

  Service using data to clarify IP value and maximize the results of various IP-related initiatives.

• Kotobank

  Free web encyclopedia and one of Japan's largest knowledge database sites, aggregating authoritative data.

1. 1C-POT official websitec-pot.co.jp
2. 2C-POT - Wikidatawikidata.org