Keiro Komatsu

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor multiple quantum well mach-zehnder optical modulator...
- Patent number 6,278,170
- Issue date Aug 21, 2001
- NEC Corporation
- Keiro Komatsu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Multiple-wavelength light source and method of controlling oscillat...
- Patent number 6,192,170
- Issue date Feb 20, 2001
- NEC Corporation
- Keiro Komatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light wavelength filtering circuit and manufacturing method thereof
- Patent number 5,841,929
- Issue date Nov 24, 1998
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 5,825,047
- Issue date Oct 20, 1998
- NEC Corporation
- Akira Ajisawa
- G02 - OPTICS
Information Patent Grant
Optical integrated circuit and method for fabricating the same
- Patent number 5,796,883
- Issue date Aug 18, 1998
- NEC Corporation
- Kiichi Hamamoto
- G02 - OPTICS
Information Patent Grant
Semiconductor optical integrated circuits and method for fabricatin...
- Patent number 5,770,466
- Issue date Jun 23, 1998
- NEC Corporation
- Tatsuya Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical integrated circuits
- Patent number 5,565,693
- Issue date Oct 15, 1996
- NEC Corporation
- Tatsuya Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical waveguide-integrated light-receiving device
- Patent number 5,521,994
- Issue date May 28, 1996
- NEC Corporation
- Takeshi Takeuchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical guided-wave device
- Patent number 5,455,433
- Issue date Oct 3, 1995
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Semiconductor device for control of a signal light
- Patent number 5,381,023
- Issue date Jan 10, 1995
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Method of producing optical integrated circuit
- Patent number 5,358,896
- Issue date Oct 25, 1994
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Method of making semiconductor optical guided-wave device
- Patent number 5,334,551
- Issue date Aug 2, 1994
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Optical waveguide formed of compound semiconductor materials and pr...
- Patent number 5,237,639
- Issue date Aug 17, 1993
- NEC Corporation
- Tomoaki Kato
- G02 - OPTICS
Information Patent Grant
Optical directional coupler switch
- Patent number 5,119,449
- Issue date Jun 2, 1992
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS
Information Patent Grant
Device and method for providing optical bistability with free carri...
- Patent number 4,795,241
- Issue date Jan 3, 1989
- NEC Corporation
- Keiro Komatsu
- G02 - OPTICS

Keiro Komatsu

Person

Patents Grantslast 30 patents

Semiconductor multiple quantum well mach-zehnder optical modulator...

Multiple-wavelength light source and method of controlling oscillat...

Light wavelength filtering circuit and manufacturing method thereof

Optical semiconductor device

Optical integrated circuit and method for fabricating the same

Semiconductor optical integrated circuits and method for fabricatin...

Semiconductor optical integrated circuits

Semiconductor optical waveguide-integrated light-receiving device

Semiconductor optical guided-wave device

Semiconductor device for control of a signal light

Method of producing optical integrated circuit

Method of making semiconductor optical guided-wave device

Optical waveguide formed of compound semiconductor materials and pr...

Optical directional coupler switch

Device and method for providing optical bistability with free carri...