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2017-06-13 |
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Optical transmission apparatus |
— |
2015-12-01 |
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Ryoichi Mutoh, Toru Katagiri |
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Node apparatus, ring network, and protection path bandwidth control method |
Yuji Tochio, Shinya Kano, Ryoichi Mutoh |
2013-04-30 |
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Keiji Miyazaki, Akira Nagata, Shinya Kano |
2012-10-16 |
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Signaling apparatus and signaling method |
Shinya Kano, Kouichirou Amemiya |
2011-11-29 |
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Relay node |
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2011-11-22 |
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Ring type network system including a function of setting up a path |
Keiji Miyazaki, Shinya Kano, Akira Nagata |
2010-09-28 |
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Relay node in optical networks |
Akira Nagata, Keiji Miyazaki, Shinya Kanoh |
2010-04-27 |
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| 7680136 |
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Keiji Miyazaki, Shinya Kano, Akira Nagata |
2010-03-16 |
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Communication path calculation method and module |
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2010-02-02 |
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Path routing computation method and optical communication network applying path routing computation method |
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Method for controlling communication paths and communication control system in communication network |
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2001-02-13 |
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Silencer and air conditioner |
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2000-11-21 |
$337,000 |
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1998-07-14 |
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System for achieving alarm masking processing |
Shigeo Amemiya, Yuichi Matsuda, Takao Ogura, Koji Tezuka, Hiromi Ueda +1 more |
1997-06-03 |
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