Some of the books and magazines that Kouichi has appeared in are as follows.

1990 03.10	Animedia April 1990	event report, COLOR {2 P}
1992 03.10	Animedia April 1992	bikkuri meijin club 2, COLOR {1 P}
1992 07.10	Animedia August 1992	monthly close up, COLOR {3 P}
1992 10.10	Animedia November 1992	Ranma 1/2 article, COLOR {2 P}
1994 01.10	Animedia February 1994	article, COLOR {1 P}
1994 07.26	AnimeV September 1994	Yuugen Kaisha article, MONO {1 P}
1995 04.26	AnimeV June 1995	AnimeV history article, MONO {4 P}
1995 04.26	V.Press [AnimeV June 1995]	article, COLOR {1 P}
1995 07.10	Animedia August 1995	radimedia, COLOR {1 P}
1995 08.10	Animedia September 1995	radio selection, MONO {1/4 P}
1995 10.10	Animedia November 1995	flamingo club 19, COLOR {2 P}
1995 11.10	Animedia December 1995	flamingo club 20, COLOR {2 P}
1995 11.10	Newtype December 1995	Say You Club article, COLOR {1/4 P}
1995 11.21	Heartful Voice volume 1	interview, COLOR {4 P}
1995.12.??	Seiyuu Grand Prix volume 5	article, COLOR {1 P}
1996 01.25	AnimeV March 1996	article, MONO {1 P}
1996 03.21	Heartful Voice volume 3	article, COLOR {4 P}
1996.04.??	Seiyuu Grand Prix volume 6	talk, MONO {6 P}
1996 06.25	Megu August 1996	Happy Ride report, COLOR {2 P}
1996 07.10	Anime Star Paradise [Animedia August 1996]	play report, COLOR {1 P}
1996 07.25	Voice Animage 9	article, MONO {4 P}
1996.07.??	Seiyuu Grand Prix volume 7	article, MONO {6 P}
1997 02.26	Ani Raji Grand Prix 6	article, COLOR {2 P}
1997 05.30	Voice Animage 14	article, MONO {2 P}
1997 07.10	Seiyuu Grand Prix volume 12	article, MONO {6 P}
1997 07.30	Voice Animage 15	article, MONO {2 P}
1997 08.10	Animage September 1997	Say You History, COLOR/MONO {3 P}
1997 09.10	Seiyuu Grand Prix volume 13	talk, MONO {6 P}
1997 10.25	AnimeV December 1997	voice front line, MONO {3 P}
1997 11.10	Animedia December 1997	article, COLOR {1/2 P}
1997 11.10	Seiyuu Grand Prix volume 14	article, MONO {6 P}
1997 11.30	Voice Animage 17	article, COLOR {2 P}
1998 01.25	Seiyuu Grand Prix volume 15	talk, MONO {6 P}
1998 05.22	Seiyuu Grand Prix 17	talk, MONO {6 P}
1998 07.25	Seiyuu Grand Prix 18	talk, MONO {6 P}
1998 11.25	Seiyuu Grand Prix 20	talk article, MONO {6 P}
1999 01.10	Animedia February 1999	seiyuu message, MONO {1/9 P}
1999 01.25	Seiyuu Grand Prix 21	talk, MONO {6 P}
1999 08.26	Ani Raji Grand Prix 21	event report, COLOR {2 P}
1999 10.09	Animedia November 1999	Cowboy Bebop article, COLOR {1 P}
2000 03.09	Animage April 2000	CD article, MONO {1/2 P}
2000 03.09	Animedia April 2000	CD article, COLOR {1/4 P}
2000 12.10	Animedia January 2001	drama article, MONO {1/4 P}
2001 07.10	AX August 2001	Cowboy Bebop article, MONO {1 P}
2001 10.10	AX November 2001	article, COLOR {2 P}
2002 10.20	Big Comic Original No. 846	Tsuri Baka Nisshi article, COLOR {1/4 P}
2002 11.10	Seiyuu Grand Prix December 2002	interview, MONO {2 P}
2003 12.10	Seiyuu Grand Prix January	interview, MONO {1 P}
2004 06.30	Shougaku 1 Nensei 2004 August	Oha Sta article, COLOR {1 P}
2011 11.16	Shounen Magazine 2011 vol 51	Kami Voice article, COLOR {1 P}