Daishi Ishii

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical repeating system and optical amplifying repeater control me...
- Patent number 7,158,728
- Issue date Jan 2, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical repeating system and optical amplifying repeater control me...
- Patent number 7,130,544
- Issue date Oct 31, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical repeating system and optical amplifying repeater control me...
- Patent number 6,914,718
- Issue date Jul 5, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Supervisory system of optical amplifier repeater system and supervi...
- Patent number 6,804,469
- Issue date Oct 12, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical repeating system and optical amplifying repeater control me...
- Publication number 20030011856
- Publication date Jan 16, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical repeating system and optical amplifying repeater control me...
- Publication number 20030011857
- Publication date Jan 16, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical repeating system and optical amplifying repeater control me...
- Publication number 20030011879
- Publication date Jan 16, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Supervisory system of optical amplifier repeater system and supervi...
- Publication number 20020021473
- Publication date Feb 21, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Yasunori Kasahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE