Despite being a politician for 28 years, Koike has shown her degree certificates only twice. The first time was her diploma on the “Weekly Post" magazine dated 9 April 1993. However, the size of the photograph is so small (around 6cm×5cm) that no letter is legible. The second time was her graduate certificate and diploma in a news program of Fuji TV "Toku-Dane!" (“Scoop!") which was broadcast on 30 June 2016. The report is short and the image is not necessarily clear but thanks to the video clip that was available on YouTube we were able to roughly see what they are like. (The video clip was removed from YouTube immediately after the publication of “Fake CV" but many people had saved it before the removal. Perhaps this indicates Koike’s nervousness about those documents.)
Koike’s graduation documents look invalid
Since Koike has not shown her degree certificates to the public in a clear form, we can only examine whether they are genuine or not with the only legible Fuji TV screenshot.
For comparison purpose I collected about 20 graduate certificates from Cairo University graduates I met and from internet sites. Those certificates are issued by faculties of Arts, Engineering, Economics and Political Science, Commerce, Medicine, Pharmacy, and Law between 1973 and 2015.
Cairo University's graduate certificates vary in terms of signatories, stamps, and forms depending on the faculty and the year in which they were issued. Usually there are three to five signatories on a single graduate certificate, i.e., mukhattas (specialist), musajjil (registrar), muraaqib (controller), muraajiu (checker), etc., with the signature of mudir aanm as-shouuni taaliimiiya (general director for educational matters) or amiid l-kulliiya (dean of faculty) underneath. Revenue stamps are also affixed and stamps of the university's general administration department (al-idaarat-l-aanma) and faculties are stamped in one to five places including the revenue stamp's tally. Shape of some of the certificates is close to a square but many are vertical and long rectangles.
As far as I can see from the screenshot, Koike's graduate certificate looks invalid. This is because none of the seals on the university's stamp, which is paramount, are legible. It may have been even forged because it is substantially different from the ones of the Faculty of Arts at that time.
Koike's graduate certificate has three stamps but only the one at the bottom left vaguely appears to have an eagle mark, a sign that means that the certificate is issued from an Egyptian governmental body, on it and the other two are completely blurred. The other 20 or so certificates I have collected are all clearly stamped. The eagle mark, the name of the department around it and the Arabic letters for the university's general administration department are all clearly visible.
I showed Koike's graduate certificate to two people. One is a Professors of Faculty of Arts of Cairo University and another person is graduate of Cairo University’s Faculty of Engineering who works in a managerial position in an organization. They told me that Koike’s certificate could not be used as a valid graduate certificate. Dalia Shibel, who went undercover to interview the fraudulent diploma vendors, even pointed out that someone inside the university must have helped forge the certificate since there was no counterfeiting vendors with good techniques at the time.