| 1979-12 |
|
| 1979-12 |
Establishment of Tokyo Itoi Shigesato Office, Ltd. |
| 1989-03 |
Assumed position of President and CEO of the company. |
| 1998-06 |
|
| 1998-06 |
Launch of 'Hobonichi Itoi Newspaper'. |
| 1999-03 |
|
| 1999-03 |
本社移転 鼠穴（東京都港区東麻布） |
| 2001-06 |
Appointed as external director of Fields Co., Ltd. (now Yoneyama Fields Holdings Co., Ltd.). |
| 2001-08 |
|
| 2001-08 |
Headquarters relocation to the Akari Building (Mita, Minato-ku, Tokyo). |
| 2001-10 |
|
| 2001-10 |
Launch of the Hobonichi Planner. |
| 2002-10 |
|
| 2002-10 |
Organizational change to Tokyo Itoi Shigesato Office Co., Ltd. |
| 2005-11 |
|
| 2005-11 |
Headquarters relocation to Kyuyo Building (Minami-Aoyama, Minato-ku, Tokyo). |
| 2010-12 |
|
| 2010-12 |
Headquarters relocation to Aotonami Building (Kita-Aoyama, Minato-ku, Tokyo). |
| 2011-11 |
|
| 2011-11 |
Opening of Hobonichi in Kesennuma (opened in November 2019). |
| 2014-08 |
|
| 2014-08 |
Opening of Hobonichi's store and event space 'TOBICHI'. |
| 2016-01 |
|
| 2016-01 |
Headquarters relocation to Stadium Place (Kita-Aoyama, Minato-ku, Tokyo). |
| 2016-06 |
|
| 2016-06 |
Release of the dog and cat SNS app 'Dokonoko'. |
| 2016-12 |
|
| 2016-12 |
Name change to Hobonichi Co., Ltd. |
| 2017-03 |
|
| 2017-03 |
|
| 2017-03 |
Listing on the Tokyo Stock Exchange JASDAQ market (now the Standard market). |
| 2017-03 |
Opening of the 'Life Enjoyment Exhibition'. |
| 2017-06 |
|
| 2017-06 |
Opening of Hobonichi's store and event space 'TOBICHI Kyoto'. |
| 2017-12 |
|
| 2017-12 |
Launch of Hobonichi Earth Ball. |
| 2018-01 |
|
| 2018-01 |
Opening of 'Hobonichi School'. |
| 2018-07 |
|
| 2018-07 |
Opening of 'weeksdays' brand. |
| 2019-11 |
|
| 2019-11 |
Opened event space 'Hobonichi Sunday' at Shibuya PARCO. |
| 2020-06 |
|
| 2020-06 |
Launch of 'Hobonichi MOTHER Project'. |
| 2020-11 |
|
| 2020-11 |
|
| 2020-11 |
Renewed sales of 'Hobonichi Earth Ball'. |
| 2020-11 |
Head office relocation to Hobonichi Kanda Building (Kanda Nishikicho, Chiyoda-ku, Tokyo). |
| 2020-12 |
|
| 2020-12 |
「 : TOBICHI東京 : 」 移転（東京都千代田区神田錦町） |
| 2021-02 |
|
| 2021-02 |
Opening of 'Shin;Kuu' brand. |
| 2021-06 |
|
| 2021-06 |
Reopening of 'Hobonichi School'. |
| 2022-02 |
|
| 2022-02 |
Launch of 'For the Sleepless Bear'. |
| 2023-11 |
Assumed role of CEO and CCO of the company. |
| 2024-01 |
|
| 2024-01 |
Opening of 'yozora' brand. |
| 2025-06 |
|
| 2025-06 |
Renamed 'Hobonichi Itoi Newspaper' to 'Hobonichi'. |
| 2025-11 |
Assumed role of Chairman and CEO of the company (current). |
