Forward Chris Wood, midfielder Bruno Guimaraes and defenders Kieran Trippier, Dan Burn and Matt Targett all arrived at St James' Park remaining month to bolster the crew, who sit second from backside of the English pinnacle-flight.
Newcastle boss Howe said he was thrilled with his commercial enterprise inside the first switch window for the reason that Saudi-led takeover of the membership in October.
"I think we without a doubt cease the window more potent as a team, as a squad," he stated at his press conference at the eve of Tuesday's domestic suit in opposition to Everton.
"Signing 5 players appears a lot on the floor but I assume we've been able to drip-feed gamers into the crew, no longer must do it abruptly," he brought.
Trippier and Wood have already featured in Premier League matches against Watford and Leeds and all five of the new signings can be concerned towards Everton.
"It looks like we've got strengthened the institution, we have not destabilised the crew, which can be a very risky component when you're bringing five in right away," said Howe.
But the Newcastle supervisor said the evidence might be on the pitch.
"Nothing is performed on paper," he said. "The additions we've made I virtually like. I genuinely just like the gamers we've got brought in. I think they have got remarkable man or woman characteristics but additionally I suppose the maximum essential factor with every participant we've signed is they are very good people. They've got a triumphing mentality. I suppose they may be leaders of their personal right."
Howe batted away guidelines he became beneath elevated pressure as a result of his big spending inside the switch window.
"I'm under no illusions as the manager of this huge club but I'm usually going to be in the firing line," he said.