創業

1. Origins, structure, and basic meaning

• Structure: 創業 is read as そうぎょう and functions as a noun or with する for founding and starting a business.
• Basic usage: Mark the business founded with を in 店を創業する, and use the compound 創業時 for the founding period.

2. Common pitfalls and similar expressions

• Act and point in time
  • 創業した describes the act of founding, while 創業時から sets that founding period as the starting point of a duration.
• Not current operation
  • The focus is the event or time when the business began, not merely the fact that it operates now.