1998
- Started Yamamoto Paint as a solo venture.
2000
- Established Yamamoto Paint Co., Ltd.
2005
- Changed corporate status with a capital increase of 10 million yen (from a limited company to a joint-stock company).
2010
- Company name changed to Yamamoto Holdings Co., Ltd.
2014
- Relocated the Headquarters (Matsudo Honcho).
2016
- Newly established the Tokyo Office (Minato-ku, Tokyo).
2017
- Established HardoLass Co., Ltd. (liquid agent development manufacturer).
- Completed the development of HardoLass Nanomaterial Coating.
- Moved into the Product Development Support Laboratory of Tokyo Metropolitan Industrial Technology Research Center.
2019
- Started joint research with Waseda University.
2021
- Established Matsuhidai Satellite Office / Factory.
- Company name changed to HardoLass Holdings Co., Ltd.
- Established the Higashi-Matsudo Factory.
- Started joint research with the Institute of Fluid Science, Tohoku University.
2022
- Opened Tokyo Office in Harumi Triton Square.
2023
- Started joint research with Kyushu Institute of Technology.
- Started joint research with Tokyo University of Science.
- Started joint research with Kyoto Prefectural University of Medicine.
2024
- Opened a large scale showroom in Matsudo.