Question: Which musician has a solo punk rock project: Toshiko Koshijima or Frank Iero?

Context articles: Toshiko Koshijima
Frank Iero
My Chemical Romance
List of songs recorded by My Chemical Romance
Leathermouth
SpiderCider
Death Spells
White Jimmy
XO (Leathermouth album)
Frank Iero and the Patience

Toshiko Koshijima (こしじま としこ , Koshijima Toshiko , born March 3, 1980 in Kanazawa, Ishikawa) is a Japanese singer.
 Along with composer, record producer and DJ Yasutaka Nakata, she is a lead vocalist of the electronica band Capsule, which they formed in 1997 when both were 17.
 Their formal debut came in 2001 with the release of the single "Sakura".
 Two more singles and their debut album, "High Collar Girl", followed the same year.
Frank Anthony Iero, Jr. (born October 31, 1981) is an American musician who was the rhythm guitarist and backup vocalist of the rock band My Chemical Romance and post-hardcore band Leathermouth.
 He has a solo punk rock project titled Frank Iero and the Patience.
 He released an album under the previous name of frnkiero andthe cellabration titled "Stomachaches" which was released on August 26, 2014.
 The first single off the album, called "Weighted", premiered on BBC Radio One on July 8, 2014.
My Chemical Romance (often abbreviated as MCR) was an American rock band from Newark, New Jersey, active from 2001 to 2013.
 The band's best-known lineup consisted of lead vocalist Gerard Way, guitarists Ray Toro and Frank Iero, bassist Mikey Way and drummer Bob Bryar.
 Founded by Gerard, Mikey, Toro, Matt Pelissier, and later joined by Iero, the band signed to Eyeball Records and released their debut album "I Brought You My Bullets, You Brought Me Your Love" in 2002.
 They signed with Reprise Records the next year and released their major label debut "Three Cheers for Sweet Revenge" in 2004.
 Shortly after the album's release, Pelissier was replaced by Bob Bryar.
 A commercial success, the album was awarded platinum status over a year later.
The following is a list of recorded songs by the American alternative rock/punk band My Chemical Romance.
 A song titled "Hell Hath No Fury" was recorded for The Man with the Iron Fists but was never released.
 An instrumental of the track credited to Gerard Way, Mikey Way, Frank Iero, Ray Toro and James Dewees appears in the movie.
Leathermouth (often typeset as LeATHERMØUTH) was an American hardcore punk band led by Frank Iero.
 The band formed in 2007, and in January 2009 released their first album "XO".
SpiderCider is a punk rock project from goth/punk/hardcore/metal veteran Eerie Von.
 Eerie Von has recorded one album under this name, "That's All There Is", released by Ghastly Records in 2006.
 The project marked a diversion from the gothic rock of Eerie Von's previous solo albums.
Death Spells is an American digital hardcore band formed in 2012.
 The group is composed of former My Chemical Romance rhythm guitarist Frank Iero and keyboardist James Dewees (also of The Get Up Kids and Reggie and the Full Effect), who were both members of hardcore punk band Leathermouth as well.
White Jimmy (born James Reginald White, January 11, 1959 in New York City, New York) is the vocalist of the American punk rock bands The Deadweights and The Gitmo Condemned, owner of the Ruined Recordings label, and a solo punk rock and alternative rock artist.
XO (often typeset as XØ) is the debut album released by Leathermouth, My Chemical Romance's rhythm guitarist Frank Iero's hardcore punk side project.
 Although the album did not chart on the "Billboard" 200, it did reach No. 21 on the Top Heatseekers chart.
Frank Iero and the Patience is an American rock band from Belleville, New Jersey.
 Their debut album, "Stomachaches", was released on August 25, 2014.
 Their second album "Parachutes" was released on October 27, 2016 with the promotional singles "I'm A Mess", "Remedy", and "Oceans".
 Their current lineup consists of Frank Iero, Evan Nestor, Matt Olsson, and Alex Grippo.
 Steve Evetts is credited with writing and recording the bass tracks on "Parachutes".