Japan Institute for National Fundamentals (国家基本問題研究所) is a conservative think tank founded and led by Yoshiko Sakurai. The Institute has close ties to Japan Conference, and many of its board members, advisors, and fellows are members come from Japan Conference and/or textbook reform movement. Its priorities include a revision of the pacifist clauses of Japan’s constitution, continued use of nuclear power, and comfort women denial.

Affiliated individuals include, in addition to Sakurai:

• Tadae Takubo (田久保忠衛), Japan Conference
• Shintaro Ishihara (石原慎太郎), fmr Tokyo governor
• Takashi Ito (伊藤隆), Japanese Society for History Textbook Reform
• Taro Yayama (屋山太郎), Nippon Foundation, Society to Improve Textbooks
• Kazuo Ijiri (井尻千男), Japan Conference, Japanese Society for History Textbook Reform
• Shohei Umezawa (梅澤昇平)
• Masato Ushio (潮匡人), Japan Education Rebirth Institute
• Koichi Sugiyama (すぎやまこういち), Committee for Historical Facts, Society to Improve Textbooks
• Tsutomu Nishioka (西岡力)
• Akira Momochi (百地章), Japan Conference
• Yuzou Kabashima (椛島有三), Japan Conference

Website: https://jinf.jp/

Japan Education Rebirth Institute (Nippon Kyoiku Saisei Kiko, 日本教育再生機構) is a right-wing Japanese group promoting revisionist history and civil textbooks that do not mention the comfort women system and other atrocities committed by the Japanese military while offering narratives glorifying Japanese expansionism. It was founded by Hidetsugu Yagi (八木秀次) after he and others left the Japanese Society for History Textbook Reform due to an internal division. Board members include Shiro Takahashi and others who are affiliated with the powerful Japan Conference. As of 2018, the Institute’s website disappeared, and it is unclear whether the Institute still remains active.

Website: http://www.kyoiku-saisei.jp/

Japanese Society for History Textbook Reform (新しい歴史教科書をつくる会) is a Japanese nationalist group founded by Nobukatsu Fujioka (藤岡信勝) in 1996, mainly in response to the inclusion of the comfort women history in Japanese history textbooks in the early to mid-1990s.

After a series of in-fighting and schisms among conservative intellectuals throughout 1990s and 2000s, more mainstream conservative leaders (especially those affiliate with Japan Conference) left the organization to form the Society to Improve Textbooks (教科書改善の会), leaving Fujioka and his followers behind. Fujioka’s group continues to publish textbooks, but it has been less successful than the splinter group in getting its textbooks adapted by schools. Both groups’ textbooks are similar in their nationalist (and often revisionist) tendencies, but Fujioka and his group have been more vocal in comfort women denial and criticisms of Abe administration’s handling of the issue.

Website: http://www.tsukurukai.com/