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Hajime Katoki (カトキハジメ Katoki Hajime?) is a popular Japanese mecha designer. A member of the studio Sunrise, he is highly noted for his work on the Gundam series as well as his work on video games, such as the Virtual On series and Policenauts. Hajime Katoki was one of the mechanical designers who worked on Mobile Suit Gundam Wing, Mobile Suit Gundam 0083: Stardust Memory, and Mobile Suit Victory Gundam. Mr. Katoki was lead designer for the Wing follow-up OVA New Mobile Report Gundam Wing: Endless Waltz. After having redesigned the upgraded Gundams with a more sleek look, Hajime Katoki went back and redesigned the original Gundams to hold with the appearance of their successors seen in New Mobile Report Gundam Wing: Endless Waltz. He also redesigned numerous other mobile suits in the Gundam series. The names for these versions of mobile suits is usually followed by "Ver. Ka."


Born in 1963, Katoki gained fame with his designs for the graphic novel Gundam Sentinel. He then worked on the OVA series Mobile Suit Gundam 0083: Stardust Memory, where he designed the famous RX-78 GP03 Dendrobium Orchis mobile weapon. His next big work was Mobile Suit Victory Gundam, where he was the main mechanical designer, creating the mobile suits Victory Gundam, V2 Gundam and the V2 Assault Buster Gundam. After that, he worked on Mobile Fighter G Gundam, now in design of the enemy mobile suits. He then worked on Mobile Suit Gundam Wing on some minor mobile suits, but in New Mobile Report Gundam Wing: Endless Waltz he designed all of the mobile suits, and re-designed the featured Gundams, creating one of his most famous designs: the XXXG-00W0 Wing Gundam Zero Custom. To correspond with these new designs, he also redesigned the 5 original Gundams from Mobile Suit Gundam Wing, as a result, his redesign of the Wing Gundam has become a popular model kit.

Katoki’s designs usually have a blocky, sturdy look to them that has many fans enjoy. His attention to detail makes him a wonderful illustrator for diagrams and cutaway views of mecha that help many people visualize his designs as real machines. Katoki has also worked on the Super Robot Wars and Virtual On video games, and on the Patlabor 2 movie. He also collaborates quite frequently with Bandai, often doing touch-up designs for Master Grade Gunpla model kits and production of the Gundam Fix Figuration (G.F.F.) series action figures.

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