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Ryōichirō Arai

1855 – 1939

Japanese businessman

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About Ryōichirō Arai

Lived 1855 – 1939 (aged 83). Ryōichirō Arai was a Japanese businessperson.

Arai Ryoichiro (新井 領一郎) (August 31, 1855 April 10, 1939) was a Japanese businessman. He helped to build trade relationships between the United States and Japan, especially in the silk industry.

Early life and education Arai was born Ryosuke Hoshino on August 31, 1855, in what is now Kiryu, Gunma. He was adopted by the Arai family, and his given name was changed to Ryoichiro. His older brother, Chotaro Hoshino, had a silk production business. Arai studied English and accounting at several schools in Tokyo. After graduation, Chotaro encouraged Arai to go to the United States so that Arai could help his business.

Career In March 1876, Yukichi Fukuzawa advised Arai and five other men to go to New York City to promote trade. While living there, Arai studied English at the Plymouth Institute in Brooklyn Heights. Later that year, Arai made a deal to sell B. Richardson and Sons, a silk importer, 400 pounds of raw silk from Chotaro's company for $6.50 per pound. However, that was far under the market value for silk in Japan at the time. Chotaro's company lost $2,000 after Arai refused to renegotiate the contract with Richardson. He didn't want to renegotiate so that he could keep Richardson's trust, because Japanese silk merchants had a bad reputation at the time. Richardson gave them a bonus when the silk arrived. This was the first direct shipment of Japanese silk to the United States. However, the company was successful enough that Arai was able to return to Japan and marry Tazu Ushiba. They returned to New York, then moved to Riverside, Connecticut in 1893. They had two children. By 1908, the Morimura Arai Company handled 30% of all silk exports to the United States and cotton imports from the United States to Japan.

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Important facts

Birth century
Occupation
Nationality
Awards
Order of the Sacred Treasure, 4th class; Order of the Sacred Treasure, 6th class
Also known as
Ryosuke Hoshino, Arai Ryoichiro

Contemporaries

People whose lives overlapped Ryōichirō Arai's

Frequently asked questions

Who was Ryōichirō Arai?

Japanese businessman

When was Ryōichirō Arai born?

Ryōichirō Arai was born on 31 August 1855 in Kiryū.

When did Ryōichirō Arai die?

Ryōichirō Arai died on 10 April 1939 in Riverside.

What was Ryōichirō Arai's occupation?

Ryōichirō Arai was a businessperson.

What nationality was Ryōichirō Arai?

Ryōichirō Arai was Japanese.

Sources & further reading

· Wikipedia: Ryōichirō Arai

· Wikidata: Q11501279

· DBpedia: Arai Ryoichiro

Cite this page

APA: Biography.guide. (2026). Ryōichirō Arai. https://biography.guide/ryoichiro-arai/

MLA: "Ryōichirō Arai." Biography.guide, https://biography.guide/ryoichiro-arai/.

Chicago: "Ryōichirō Arai." Biography.guide. https://biography.guide/ryoichiro-arai/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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