| 1950 | Japan's first large-scale tanker of the postwar era, Ryuho Maru (14,717 KDWT), was built. |
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| 1951 | Liner services were opened to New York, Bangkok, India and Pakistan. Iino Lines moved into management of Liner service. |
| 1953 | Iino Fudosan Kaisha Ltd. was established. |
| 1957 | Liner service was opened to West Australia. Iino Lines increased its capital to 13.2 billion yen. |
| 1958 | Liner service was opened to Nakhodka. Liner Service between North America and Southeast Africa was opened. |
| 1960 | Liner service was opened to the Great Lakes and Canada. Iino Building (our present headquarters) was completed. Iino Hall began operations. |
| 1963 | The company's first LPG ocean tanker, the first Toyosu Maru, was commissioned. |
| 1964 | The separation of the Liner Service Department was brought about by Kaiun Saiken Niho (The Two Laws for the Reconstruction of the Sipping Industry) and transferred to the newly established Iino Kisen Kaisha, Ltd., which later amalgamated with Kawasaki Kisen Kaisha, Ltd. |
| 1967 | Tokyo Sakurada Building was completed. |
