Akihiko Hayashi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Module having a handle to be operated to attach the module to a cage
- Patent number 7,648,289
- Issue date Jan 19, 2010
- Fujitsu Limited
- Makoto Miyoshi
- G02 - OPTICS
Information Patent Grant
Light source device
- Patent number 7,421,211
- Issue date Sep 2, 2008
- Fujitsu Limited
- Akihiko Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulation controlling circuit
- Patent number 6,658,213
- Issue date Dec 2, 2003
- Fujitsu Limited
- Akihiko Hayashi
- G02 - OPTICS
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
Light transmitter having an automatic bias control circuit
- Patent number 5,900,621
- Issue date May 4, 1999
- Fujitsu Limited
- Yasunori Nagakubo
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Module having a handle to be operated to attach the module to a cage
- Publication number 20080187271
- Publication date Aug 7, 2008
- FUJITSU LIMITED
- Makoto Miyoshi
- G02 - OPTICS
Information Patent Application
Light source device
- Publication number 20050201443
- Publication date Sep 15, 2005
- Fujitsu Limited of Kawasaki-shi
- Akihiko Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmitter
- Publication number 20040161249
- Publication date Aug 19, 2004
- FUJITSU LIMITED
- Atsushi Suda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Modulation controlling circuit
- Publication number 20020018283
- Publication date Feb 14, 2002
- FUJITSU LIMITED
- Akihiko Hayashi
- G02 - OPTICS