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There is only one surviving first-generation G-Shock at Casio’s head office. (© Nippon.com)
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Matsumura helped push the G-Shock’s three-dimensional trademark registration. (© Nippon.com)
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The image at left is the blank three-dimensional image that was successfully registered. Because Casio filed with a basic black and gray image, differences in color and material will also be covered. To the right is a first-generation DW-5000C model photographed from the same angle. (© Casio Computer)
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The top-left watch is the first-generation model, while the rest are all subsequent variations on the design. (© Nippon.com)
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Yonekura was responsible for gathering the survey results and application materials. (© Nippon.com)
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The Kikkōman tabletop bottle (Reg. 6031041) is to the left, and the Yakult plastic container (Reg. 5384525) on the right. (Courtesy J-PlatPat)
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Kinoko no Yama (Reg. 6031305) is to the left and Takenoko no Sato (reg. 6419263) is to the right. (Courtesy J-PlatPat)
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The Super Cub (reg. 5674666) can be seen running worldwide. (Courtesy J-PlatPat)
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Yonekura and Matsumura at the Casio headquarters showroom. (© Nippon.com)