Shigeyuki Akiba

Person

Kamifukuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical amplifier having various control circuitry
- Patent number 6,867,908
- Issue date Mar 15, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Aritomo Uemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier having various control circuitry
- Patent number 6,614,588
- Issue date Sep 2, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Aritomo Uemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical repeater monitoring system and a method thereof
- Patent number 6,556,325
- Issue date Apr 29, 2003
- KDD Corporation
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying transmission system and optical amplifying repeater
- Patent number 6,188,510
- Issue date Feb 13, 2001
- KDD Corporation
- Noboru Edagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control signal superimposer
- Patent number 6,188,508
- Issue date Feb 13, 2001
- KDD Corporation
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexed optical processing device and optic...
- Patent number 6,181,449
- Issue date Jan 30, 2001
- Kokusai Denshin Denwa Kabushiki-Kaisha
- Hidenori Taga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical power measuring system terminal station and repeater therefor
- Patent number 6,160,649
- Issue date Dec 12, 2000
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain equalizing apparatus
- Patent number 6,091,538
- Issue date Jul 18, 2000
- Kokusai Denshin Denwa Kabushiki Kaisha
- Noriyuki Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength-division multiplexing optical transmission system
- Patent number 6,021,235
- Issue date Feb 1, 2000
- Kokusai Denshin Denwa Kabushiki Kaisha
- Shu Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device, WDM optical transmission apparatus, an...
- Patent number 6,005,702
- Issue date Dec 21, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain equalizer and optical amplifying transmission line
- Patent number 5,978,529
- Issue date Nov 2, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hidenori Taga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and optical repeater
- Patent number 5,966,228
- Issue date Oct 12, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Shigeyuki Akiba
- G02 - OPTICS
Information Patent Grant
Optically amplifying/repeating transmission system and optical ampl...
- Patent number 5,937,126
- Issue date Aug 10, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Shu Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add-drop multiplexer
- Patent number 5,926,300
- Issue date Jul 20, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Takayuki Miyakawa
- G02 - OPTICS
Information Patent Grant
Method and device for optical add/drop multiplexing using high spee...
- Patent number 5,920,413
- Issue date Jul 6, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Takayuki Miyakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission line
- Patent number 5,912,750
- Issue date Jun 15, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Noriyuki Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical pulse generator
- Patent number 5,898,714
- Issue date Apr 27, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Itsuro Morita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical receiver device for dark soliton lightwave
- Patent number 5,892,608
- Issue date Apr 6, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulator, optical short pulse generating device, optical w...
- Patent number 5,889,607
- Issue date Mar 30, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Optical switch with reduced polarization dependency and no waveform...
- Patent number 5,883,734
- Issue date Mar 16, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Surveillance method of optical amplifier-repeater transmission system
- Patent number 5,877,878
- Issue date Mar 2, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitting terminal
- Patent number 5,872,647
- Issue date Feb 16, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hidenori Taga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency shifter and optical soliton-like return-to-zero p...
- Patent number 5,864,421
- Issue date Jan 26, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Optical add-drop multiplexer
- Patent number 5,822,095
- Issue date Oct 13, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hidenori Taga
- G02 - OPTICS
Information Patent Grant
Optically amplifying transmission system
- Patent number 5,808,789
- Issue date Sep 15, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Noboru Edagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
WDM optical communication method with pre-emphasis technique and an...
- Patent number 5,790,289
- Issue date Aug 4, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hidenori Taga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line monitoring method and line monitoring apparatus
- Patent number 5,790,294
- Issue date Aug 4, 1998
- Kukusai Denshin Denwa Kabushiki Kaisha
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system and optical transmitting device
- Patent number 5,786,918
- Issue date Jul 28, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Laser light generator
- Patent number 5,771,255
- Issue date Jun 23, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yukio Horiuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system using dark soliton lightwave
- Patent number 5,737,110
- Issue date Apr 7, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical amplifier having various control circuitry
- Publication number 20030184850
- Publication date Oct 2, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Aritomo Uemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Shigeyuki Akiba

Person

Patents Grantslast 30 patents

Optical amplifier having various control circuitry

Optical amplifier having various control circuitry

Optical repeater monitoring system and a method thereof

Optical amplifying transmission system and optical amplifying repeater

Control signal superimposer

Wavelength division multiplexed optical processing device and optic...

Optical power measuring system terminal station and repeater therefor

Gain equalizing apparatus

Wavelength-division multiplexing optical transmission system

Optical transmission device, WDM optical transmission apparatus, an...

Gain equalizer and optical amplifying transmission line

Optical transmission system and optical repeater

Optically amplifying/repeating transmission system and optical ampl...

Optical add-drop multiplexer

Method and device for optical add/drop multiplexing using high spee...

Optical transmission line

Optical pulse generator

Optical receiver device for dark soliton lightwave

Optical modulator, optical short pulse generating device, optical w...

Optical switch with reduced polarization dependency and no waveform...

Surveillance method of optical amplifier-repeater transmission system

Optical transmitting terminal

Optical frequency shifter and optical soliton-like return-to-zero p...

Optical add-drop multiplexer

Optically amplifying transmission system

WDM optical communication method with pre-emphasis technique and an...

Line monitoring method and line monitoring apparatus

Optical communication system and optical transmitting device

Laser light generator

Optical communication system using dark soliton lightwave

Patents Applicationslast 30 patents

Optical amplifier having various control circuitry