Tenichi Books

Tenichi Books (天一書房, Tenichi Shobō) is a Japanese bookstore chain based in Yokohama, Kanagawa Prefecture. It operates under the bookstore division of Tama Kōsan Co., Ltd. (多摩興産株式会社), a company whose headquarters are located at Takeda Building 6F, 1-3-3 Tsunashima-Higashi, Kōhoku-ku, Yokohama. The chain's stores are concentrated along the Tōkyū Tōyoko Line, serving communities in Kōhoku-ku and surrounding areas of Yokohama. Its official website, Tenichi-Books BookWeb, presents the chain as a local bookstore rooted in the Tōyoko Line corridor. The business is part of a corporate group that also includes real estate operations. According to its corporate profile, Tama Kōsan was established in September 1970 (Shōwa 45) with capital of 42.08 million yen, and is led by representative director and president Yoshimasa Takeda. The company's bookstore division, Tenichi Shobō headquarters, handles the sale of books and stationery. Its main suppliers include Nippon Shuppan Hanbai (Nippan) and Tokyo École, and its main banks are Mitsubishi Tokyo UFJ Bank, Yokohama Bank, and Kawasaki Shinkin Bank. A group company, Takeda Holdings Co., Ltd., is also listed. Tenichi Books has operated multiple stores in the Yokohama area, including locations at Tsunashima, Hiyoshi, Ōkurayama, and Seya, as well as stationery shops under the name Bunbō 101 (文具101). In recent years the chain has contracted: the Hiyoshi store closed on January 15, 2023; the Bunbō 101 Tsunashima store closed on October 10, 2023; the Bunbō 101 Ōkurayama store closed on October 20, 2023; the Ōkurayama store closed on October 25, 2023; and the Seya store closed on October 31, 2024. The website's store list currently shows the Tsunashima store as the remaining location. Beyond books, the chain has engaged in community-oriented retailing, including sales of Keio University course information magazines such as "Reshruit" and hosting author events and signed-book promotions. Its online presence includes rankings, order and subscription services, and store information. The company has also adapted to changing retail conditions, introducing cashless payment and electronic money options at some stores and charging for plastic bags from July 1, 2020. As of its latest updates, Tenichi Books continues to operate as a local bookstore business in Yokohama.

Tenichi Books is the bookstore division of Tama Kōsan Co., Ltd., a company established in September 1970 (Shōwa 45) in Yokohama, Kanagawa Prefecture. The corporate profile lists the head office at Takeda Building 6F, 1-3-3 Tsunashima-Higashi, Kōhoku-ku, Yokohama, with capital of 42.08 million yen and representative director and president Yoshimasa Takeda. The company operates both a real estate division and a bookstore division, the latter known as Tenichi Shobō headquarters, selling books and stationery. Its main suppliers are Nippon Shuppan Hanbai and Tokyo École, and its main banks are Mitsubishi Tokyo UFJ Bank, Yokohama Bank, and Kawasaki Shinkin Bank. A group company, Takeda Holdings Co., Ltd., is also listed. The chain's stores have historically been located along the Tōkyū Tōyoko Line in Yokohama, including Tsunashima, Hiyoshi, Ōkurayama, and Seya. It also operated stationery shops under the Bunbō 101 name. Over time, the business expanded its services to include online rankings, order and subscription services, and community events. For example, in 2019 the Hiyoshi store hosted a signing and handshake event for the release of "Yasete Kawaii Naru! Popteen," and the Tsunashima and Hiyoshi stores ran a promotional giveaway for the second volume of "Shiawase Kanako no Koroshiya Seikatsu." The chain also sold Keio University course information magazines such as "Reshruit 2020" and "Reshruit 2021." In recent years, the chain has faced store closures. The Hiyoshi store closed on January 15, 2023. The Bunbō 101 Tsunashima store closed on October 10, 2023; the Bunbō 101 Ōkurayama store closed on October 20, 2023; and the Ōkurayama store closed on October 25, 2023. The Seya store closed on October 31, 2024. The website's store list currently shows the Tsunashima store as the remaining location. The company has also adapted to retail trends, introducing cashless payment and electronic money at some stores and charging for plastic bags from July 1, 2020. As of the latest updates, Tenichi Books continues to operate as a local bookstore business in Yokohama.

• Tama Kōsan Co., Ltd. established in September 1970 (Shōwa 45).

• Cashless payment with 5% point reward introduced at Tsunashima, Ōkurayama, Seya, and Bunbō 101 stores (excluding Hiyoshi).

• Signed reproduction art giveaway for 'Shiawase Kanako no Koroshiya Seikatsu' vol. 2 at Tsunashima and Hiyoshi stores.

• Signing and handshake event for 'Yasete Kawaii Naru! Popteen' at Hiyoshi store.

• Plastic bag fee introduced at all Tenichi Shobō and Bunbō 101 stores.

• Keio University course information magazine 'Reshruit 2021' released.

• Electronic money and transit IC cards accepted at Tenichi Shobō Hiyoshi store.

• Tenichi Shobō Hiyoshi store closed.

• Bunbō 101 Tsunashima store closed.

• Bunbō 101 Ōkurayama store closed.

• Tenichi Shobō Ōkurayama store closed.

• Tenichi Shobō Seya store closed.

Local community bookstore chain along the Tōkyū Tōyoko Line in Yokohama

• Books

  General books including practical guides, business, social/cultural, and paperback titles.

• Stationery

  Stationery sold under the Bunbō 101 brand.

• Keio University course information magazine 'Reshruit'

  Course information magazine for Keio University students, sold at Tenichi Books.

1. 1天一書房BOOKWEB-メインページ-tenichi-books.com
2. 2天一書房BOOKWEB-会社概要-tenichi-books.com
3. 3Tenichi Books - Wikidatawikidata.org