Keisuke Imai

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmitter and its control method
- Patent number 7,257,332
- Issue date Aug 14, 2007
- Fujitsu Limited
- Toru Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical sender, terminal device, and optical communication system e...
- Patent number 7,133,610
- Issue date Nov 7, 2006
- Fujitsu Limited
- Yoshitaka Shimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive circuit for electro-absorption modulator and optical transmit...
- Patent number 6,014,392
- Issue date Jan 11, 2000
- Fujitsu Limited
- Keisuke Imai
- G02 - OPTICS
Information Patent Grant
Optical transmitter and optical communication system
- Patent number 5,973,812
- Issue date Oct 26, 1999
- Fujitsu Limited
- Keisuke Imai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive circuit for electro-absorption optical modulator and optical...
- Patent number 5,706,117
- Issue date Jan 6, 1998
- Fujitsu Limited
- Keisuke Imai
- G02 - OPTICS
Information Patent Grant
Optical amplifier and optical transmission apparatus
- Patent number 5,680,246
- Issue date Oct 21, 1997
- Fujitsu Limited
- Tsukasa Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical transmitter and its control method
- Publication number 20050249444
- Publication date Nov 10, 2005
- FUJITSU LIMITED
- Keisuke Imai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE