- 1898
- The first president (Umejiro Kawai) enters business with Hachiya Kawai Shoten in Tenmonkan (currently the Maruya Gardens area) in downtown Kagoshima. Hachiya begins selling Asahi-tabi, Fukusuke-tabi, and other Japanese-style kimono socks, expanding its sales network as a Kyushu-area distributor.
- 1950
- The second president (Shoji Kawai) expands into modern-day Osaka, shifting focus to high-end kimono accessories.
- 1963
- Hachiya Corporation forms and begins to manufacture kimono handbags.
- 1975
- The third president, Shiro Kawai (current chairman) begins to create handbags with techniques normally used for Japanese accessories, and develops original products made from Italian and French materials.
- 1977
- The Think Bee! brand is established.
- 1998
- Hachiya celebrates its centennial.
- 2006
- The flagship store opens in Abeno, Osaka.
- 2007
- Sales expand to China, Taiwan, and other East Asian markets.
- 2008
- Hachiya celebrates 110th anniversary, and the current president (Shinnosuke Kawai) takes over.
- 2009
- The second Think Bee! store opens in Azabujuban, Minato-ku, Tokyo.
- 2010
- The third Think Bee! store opens in Tenmonkan, Kagoshima.
The fourth Think Bee! store opens in Keio department store in Shinjuku, Tokyo.
- 2011
- The fifth Think Bee! store opens in Tsuruya department store in Kumamoto.
The sixth Think Bee! store opens in Ginza, Tokyo.
- 2012
- The seventh Think Bee! store opens in Daimaru department store in Sapporo, Hokkaido.
- 2013
- The eighth Think Bee! store opens in Matsuzakaya department store in Shizuoka.
The ninth Think Bee! store opens in Sakurano department store in Sendai, Miyagi.
- 2014
- The tenth Think Bee! store opens in Daimaru department store in Fukuoka-Tenshin, Fukuoka.
- 2015
- The third Think Bee! store re-opens in Yamakataya department store in Kagoshima.
