Japanese companies are facing more shareholder proposals than before over matters ranging from director appointments to shareholder returns.

A record 90 publicly traded companies as of Wednesday had received 348 shareholder proposals during meetings this month, according to Daiwa Institute of Research. A year prior, 285 shareholder proposals were made to 76 companies.

"Some activist shareholders are actively making proposals" at a time when investors are increasingly focusing on corporate capital efficiency, said Hidenori Yoshikawa, a senior consultant at Daiwa.