Movies (As Crew)
Sorted by Release DateLumberjack the Monster
Hiroyoshi Koiwai was
? in Lumberjack the Monster
as 'Executive Producer, Screenplay'.
Fri, Dec 01 2023
Rurouni Kenshin: The Beginning
Hiroyoshi Koiwai was
? in Rurouni Kenshin: The Beginning
as 'Producer'.
Fri, Jun 04 2021
Rurouni Kenshin: The Final
Hiroyoshi Koiwai was
? in Rurouni Kenshin: The Final
as 'Executive Producer'.
Fri, Apr 23 2021
Blade of the Immortal
Hiroyoshi Koiwai was
? in Blade of the Immortal
as 'Executive Producer'.
Sat, Apr 29 2017
Rurouni Kenshin Part III: The Legend Ends
Hiroyoshi Koiwai was
? in Rurouni Kenshin Part III: The Legend Ends
as 'Executive Producer'.
Sat, Sep 13 2014
Rurouni Kenshin Part II: Kyoto Inferno
Hiroyoshi Koiwai was
? in Rurouni Kenshin Part II: Kyoto Inferno
as 'Executive Producer'.
Fri, Aug 01 2014
Rurouni Kenshin Part I: Origins
Hiroyoshi Koiwai was
? in Rurouni Kenshin Part I: Origins
as 'Producer'.
Sat, Aug 25 2012
Shining Boy and Little Randy
Hiroyoshi Koiwai was
? in Shining Boy and Little Randy
as 'Producer'.
Fri, Sep 23 2005
The Lakeside Murder Case
Hiroyoshi Koiwai was
? in The Lakeside Murder Case
as 'Executive Producer'.
Thu, Jan 22 2004
The 300 million yen robbery
Hiroyoshi Koiwai was
? in The 300 million yen robbery
as 'Producer'.
Sat, Dec 30 2000
TV Shows (As Crew)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Artificial Beauty
Hiroyoshi Koiwai was
? in Artificial Beauty
as 'Producer'.
First Air Date
Tue, Apr 09 2002
Tue, Apr 09 2002
Unmarried Family
Hiroyoshi Koiwai was
? in Unmarried Family
as 'Producer'.
First Air Date
Thu, Jul 05 2001
Thu, Jul 05 2001
Don't be a cry baby
Hiroyoshi Koiwai was
? in Don't be a cry baby
as 'Producer'.
First Air Date
Tue, Jan 12 1999
Tue, Jan 12 1999
Love Generation
Hiroyoshi Koiwai was
? in Love Generation
as 'Producer'.
First Air Date
Mon, Oct 13 1997
Mon, Oct 13 1997
Bokura ni Ai wo!
Hiroyoshi Koiwai was
? in Bokura ni Ai wo!
as 'Producer'.
First Air Date
Mon, Apr 17 1995
Mon, Apr 17 1995