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Organizational Chart of J-Stream
J-Stream Org Chart
www.stream.co.jp
has 13 executives
+81 357 657 000
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President & Director
Toshio Ishimatsu
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Director
Takashi Miyano
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Director
Kohei Ohno
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Director
Ryo Oshita
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Director
Kazuhiro Yamada
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Chairman & CTO
K...
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Supercomputer, Fax Network
S...
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Platform
M...
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Administration
Y...
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Deputy Admin & HR
J...
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Solution Promotion
M...
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Sales
T...
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Ad Business Promotion
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Updated Apr 13, 2026
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