2008/3/26
"Acquisition of the closedown Matsushita Kofu factory" (Nihon Keizai Shimbun)

2008/3/26
"KOIKE enters Matsushita’s site" (Yamanashi Nichi-Nichi Shimbun)

2007/11/21
"Koike to produce quartz part - mass production system in next spring -"(Nikkei)

2007/11/21
"Next-generation DVD part development" (YamanashiNichi-Nichi)

2006/10/24
Correspondence to "mobile phone board and high function" (Yamanashi Nichi-nichi)

2006/5/3
KOIKE increase production of "Lithium Tantalate wafer" - increase sales results in mobile phone market.(Yamanashi Nichi-nichi)

2006/4/15
“KOIKE set for production capacity expansion by 25%” - for wafer to control static electricity corresponding to miniaturization.(Nikkei)

2006/4/12
300 Small & Medium Manufacturing Enterprises, 4 enterprises selected from the prefecture.(Nikkei)

2006/4/12
METI select 4 enterprises of the prefecture as Vigorous Small & Medium Manufacturing Enterprises.(Yamanashi Nichi-nichi)

2005/4/9
Mobile phone market continues to expand up to year 2008.(Nikkei)

2005/1/25
From an electronic substrate and the crystal technology.(Nikkei Sangyo)

2004/2/20
Offer of single crystal processing service was started.

2004/2/20
The English version was exhibited.

2003/12/27
The homepage was exhibited.

2003/12/9
The report of a Pyro free wafer was carried by the newspaper (Nihon Keizai Shimbun).

2003/12/9
The report of a Pyro free wafer was carried by the newspaper (Yamanashi Nichinichi Shimbun).

2003/12/9
The mass-production start of the new product "a Pyro free wafer" was carried out.