STATOR

To provide a stator capable of achieving downsizing and high output power and a stator manufacturing method, a stator (100) comprises a split stator core (SC) including teeth (43) and slots (SCS) formed between the teeth (43), and protrusion-formed coils (CO1) each being made of a flat rectangular conductor (D) and placed in the slots (SCS). Each protrusion-formed coil (CO1) has a shape including, in a coil end portion (CE), a lead-side protrusion (PR) or a non-lead-side protrusion (PF) formed to protrude upward in an axial direction of the stator core (SC) from a first oblique side portion (HLR), a second oblique side portion (HRR), a third oblique side portion (HLF), and a fourth oblique side portion (HRF), and a first oblique side portion (HLR), a second oblique side portion (HRR), a third oblique side portion (HLF), and a fourth oblique side portion (HRF). The lead-side protrusion (PR) or the non-lead-side protrusion (PF) is designed with a height to avoid interference between the protrusion-formed coils (CO1) placed in the stator core (SC).