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| Major Customers |
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| Cortiton Hearing aid Co., Ltd. |
(hearing aid) |
| Dai-Ichi Denpa Kougyo Co.,Ltd. |
(business use wireless set) |
| Earphoneguide Co., Ltd. |
(stage explanation apparatus, etc.) |
| Eko Techno Inc. |
(business use wireless set) |
| FDK Corporation |
(consumer use earphone, etc.) |
| JVC KENWOOD Corporation |
(consumer use earphone, etc.) |
| Koken Co., Ltd. |
(disaster measures sound system) |
| MakiChie Co., Ltd. |
(hearing aid) |
| Mimy Electronics Co.,Ltd. |
(hearing aid) |
| NTT DATA CCS Co.,Ltd. |
(business use pick up sensor) |
| OTTO Engineering Inc. |
(for business use communication apparatus) |
| Ortofon Japan Co.,Ltd. |
(consumer use earphone, etc.) |
| Seiko Instruments Inc. |
(consumer use earphone, etc.) |
| Shiba Industries,Ltd. |
(Consumer electronics earphone, Hearing aid item) |
| Tanizawa Seisakusho., Ltd. |
(disaster measures sound system) |
| Tamura Corporation |
(broadcasting station sound system) |
| Yaesu Musen Co., Ltd. |
(business use wireless set) |
Others
(in no particular order) |
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| Major Suppliers |
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| Amakawa Shiki Co., Ltd. |
(decorative box, etc.) |
| Arika Co., Ltd. |
(molded resin products) |
| Topura Hanbai Co., Ltd. |
(plug, etc.) |
| KINGKONG INTERNATIONAL LIMITED |
(earphone cable, etc.) |
| Ohama Corporation |
(magnet, etc.) |
| kyowa Gohsei Co.,Ltd. |
(earplug for earphones, etc.) |
| Sato Denshi Co.,Ltd. |
(small machining, etc.) |
| Shin-Etsu Electric Wire Co.,Ltd. |
(coil, etc.) |
| Kanamori Kinzoku Co.,Ltd. |
(machining, etc.) |
| Techno Taka Co.,Ltd. |
(diaphragm for earphones, etc.) |
| Nihon Vinyl code Co.,Ltd. |
(earphone cable, etc.) |
| Hisago Denzai Co.,Ltd. |
(earphone cable, etc.) |
Others
(in no particular order) |
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