Medical Corporation HOUEIKAI took over clinical trial operations from Sekino Research Institute Co., Ltd. established in 1989, since then has conducted clinical trials specializing in Phase I trials.
| 1954: |
Hisayuki SEKINO opened Sekino Clinic |
| 1957: |
Opened Sekino Hospital |
| 1988: |
Started clinical trial operations at Sekino Hospital |
| November 1989: |
Established Sekino Laboratory Co., Ltd. to specialize in clinical trials |
| April 1998: |
Established Sekino Clinical Pharmacology Clinic as a medical institution specializing in conducting clinical trials (phase I trials) |
| October 2001: |
Hisayuki SEKINO became the honorary director of Sekino Hospital, and Hisakuni SEKINO became the director of Sekino Hospital. |
| June 2004: |
Spun off the SMO division of Sekino Laboratory Co., Ltd. and established Sekino Site Net Co., Ltd. |
| August 2004: |
Established Medical Corporation HOUEIKAI and incorporated SEKINO Clinical Pharmacology Clinic. Hisakuni SEKINO became the Chairperson of Medical Corporation HOUEIKAI |
| October 2006: |
Transferred clinical trial operations of Sekino Laboratory Co., Ltd. to Medical Corporation HOUEIKAI |
| August 2016: |
Takashi NAKAMURA was appointed as Chairperson of Medical Corporation HOUEIKAI. |