父(ちち) chichiの no死(し)後(ご) shigo、彼(かれ) kareが ga会(かい)社(しゃ) kaishaの no責(せき)任(にん)者(しゃ) sekininshaになった ninatta。 After his father's death, he became the person in charge of the company. Literal Father's death-after, he [subject-が] company's person-in-charge [into-に] became. 責任者 means 'person in charge / responsible person' — 責任 (responsibility) + 者 (person). ~になった marks the transition to a new role. workdeathfamilybusiness~になる (become)
父(ちち) chichiの no死(し)後(ご) shigo、彼(かれ) kareが ga会(かい)社(しゃ) kaishaの no責(せき)任(にん)者(しゃ) sekininshaになった ninatta。 After his father's death, he became the person in charge of the company. Literal Father's death-after, he [subject-が] company's person-in-charge [into-に] became. 責任者 means 'person in charge / responsible person' — 責任 (responsibility) + 者 (person). ~になった marks the transition to a new role. workdeathfamilybusiness~になる (become)