Yoshinori Ohkuma

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical wavelength stabilizing system
- Patent number 5,781,572
- Issue date Jul 14, 1998
- Fujitsu Limited
- Yoko Tahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Control circuit for supplying a driving current to a laser diode
- Patent number 5,732,096
- Issue date Mar 24, 1998
- Fujitsu Limited
- Kazuhiro Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
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
Information Patent Grant
Slice amplifier using FET's
- Patent number 4,816,699
- Issue date Mar 28, 1989
- Fujitsu Limited
- Masakazu Mori
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor laser driving device
- Patent number 4,813,048
- Issue date Mar 14, 1989
- Fujitsu Limited
- Kazuo Yamane
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pulse amplifier suitable for use in the semiconductor laser driving...
- Patent number 4,803,384
- Issue date Feb 7, 1989
- Fujitsu Limited
- Kazuo Yamane
- H03 - BASIC ELECTRONIC CIRCUITRY