Brand: Mitsubishi Pencil Co.
Made in: Japan
An older Hi uni with JIS mark. Unlike todays Hi uni with barcode, these predate the barcode usage.
Founded in 1887 and formerly known as Masaki Yomato, Mitsubishi Pencil Co., Ltd. is best-known today for its uni-ball brand of quality writing instruments sold worldwide. Curiously, this Tokyo-based business is unrelated to Mitsubishi Motors and other brands within the Mitsubishi Group. Same name, same logo, completely different company.