- Maruwa corporation
- Address:4145-3, Tana
- Wintech Co., Ltd.
- Address:74-1, Daiwajisho bldg. 507, Yamashitacho, nakaku
- Gueine Ltd.
- Address:561, Aza-Kanoezuka, Toyofuta, Kashiwa City, Chiba 2610002 Japan
- SHECOM k.k.
- Address:Shecom Bldg. , 2-22, Kotono-cho, Chuo-ku,
- MATSUSHIMA MACHINERY LABORATORY CO.,LTD.
- Address:461, Norimatsu, Yahatanishi-ku
- SHINODA CO LTD
- Address:1-9-9, Kaminoge, Setagay-ku
- MITSUBA MFG. CO., LTD.
- Address:5-14, Chuohigashi
- Kyowa & Co., Ltd.
- Address:5F, Marutaka Hatchobori Bldg. , 2-30-16, Hatchobori
- YAMAICHI ELECTRONICS CO., LTD.
- Address:11F Technoport Mitsui Seimei Bldg. 2-16-2 Minamikamata,
- R-DENSHI CO., LTD.
- Address:2-8-9, Sotokanda
- TA WEI CO.
- Address:Chiba, Chiba, Other, Japan
- Aqua power system, Japan
- Address:( To be provided) 2-11-8 shinbasi, minatoku
- Osafune Technology Consultant
- Address:2902-8 Ushiyama Kasugai-city Aichi 486-090 Japan
- Okada Corporation
- Address:1-3-7 Shiba-Daimon, Minato-Ku
- TECHNOVISION, INC.
- Address:2078 Nakayama, Kawajima-machi,
- HANDA SHOKO CO.
- Address:No.1137-18 Izumitottori, Hannan, Other, Japan
- SKAK CO LTD
- Address:1-3-43-301 kita suna, koto-ku
- Ota Trading Co., Ltd.
- Address:1252-3 Tanoura Moji-ku Kitakyushu Fukuoka 802-0801 Japan
- sotolab japan
- Address:2-4-5 SRK BLD 5F
- SAN-EI TRADING CO., LTD.
- Address:2-17-6, Higashi-Sakura