- Academic Societies and Industrial Groups
- the Japan Society of Applied Physics
- http://www.jsap.or.jp/english/index.html
- The Illuminating Engineering Institute of Japan
- http://www.ieij.or.jp/english/index.html
- Dealer
- TSUBAKIMOTO KOGYO CO.,LTD.
- http://www.tsubaki.co.jp/english/index.htm
- Ryokosha Co.,Ltd.
- http://www.ryokosha.com/eng/index.html
