Analysis of information sources in references of the Wikipedia article "Kōji Seki" in English language version.
...Noriko Tatsumi, generally recognized as the first major queen of Japanese sex films.
1962: 関孝二監督『情欲の谷間』(国映)でピンク映画デビュー (Director Kōji Seki pink film debut with "Valley of Lust"; 1967 日本初の立体映画『変態魔』(監督/関孝二)公開 (Japan's first 3-D film "Perverted Criminal" director: Kōji Seki; 1968 ピンク初の透明人間モノ『透明人間・エロ博士』(監督/関孝二)公開 (First "pink" invisible man story, "Invisible Man: Dr. Eros" director: Kōji Seki
1962: 関孝二監督『情欲の谷間』(国映)でピンク映画デビュー (Director Kōji Seki pink film debut with "Valley of Lust"; 1967 日本初の立体映画『変態魔』(監督/関孝二)公開 (Japan's first 3-D film "Perverted Criminal" director: Kōji Seki; 1968 ピンク初の透明人間モノ『透明人間・エロ博士』(監督/関孝二)公開 (First "pink" invisible man story, "Invisible Man: Dr. Eros" director: Kōji Seki
1911/09/20 関 孝二 (せき・こうじ) 【映画監督】 〔東京都〕