KIICHI HAMAMOTO

Person

TOKYO, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser diode, semiconductor optical amplifier, and opt...
- Patent number 7,466,736
- Issue date Dec 16, 2008
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Single-transverse-mode laser diode with multi-mode waveguide region...
- Patent number 7,262,435
- Issue date Aug 28, 2007
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical amplifier and semiconductor laser
- Patent number 6,813,068
- Issue date Nov 2, 2004
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser, semiconductor optical amplifier, and productio...
- Patent number 6,768,758
- Issue date Jul 27, 2004
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor waveguide photodetector
- Patent number 6,661,960
- Issue date Dec 9, 2003
- NEC Corporation
- Kiichi Hamamoto
- G02 - OPTICS
Information Patent Grant
Single-transverse-mode laser diode with multi-mode waveguide region...
- Patent number 6,445,722
- Issue date Sep 3, 2002
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Single-transverse-mode 1×N multi-mode interferometer type s...
- Patent number 6,205,163
- Issue date Mar 20, 2001
- NEC Corporation
- Kiichi Hamamoto
- G02 - OPTICS
Information Patent Grant
Semiconductor optical amplifier
- Patent number 6,148,132
- Issue date Nov 14, 2000
- NEC Corporation
- Kiichi Hamamoto
- G02 - OPTICS
Information Patent Grant
Method of manufacturing compound semiconductor integrated circuit
- Patent number 6,117,753
- Issue date Sep 12, 2000
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
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 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

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor Laser Diode, Semiconductor Optical Amplifier, and Opt...
- Publication number 20070258495
- Publication date Nov 8, 2007
- NEC Corporation
- Kiichi Hamamoto
- B82 - NANO-TECHNOLOGY
Information Patent Application
Single-transverse-mode laser diode with multi-mode waveguide region...
- Publication number 20040140476
- Publication date Jul 22, 2004
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multi-mode interference waveguide-including semiconductor laser dio...
- Publication number 20030174954
- Publication date Sep 18, 2003
- NEC Corporation
- Kiichi Hamamoto
- G02 - OPTICS
Information Patent Application
Semiconductor optical amplifier and semiconductor laser
- Publication number 20020154393
- Publication date Oct 24, 2002
- NEC Corporation
- Kiichi Hamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR WAVEGUIDE PHOTODETECTOR
- Publication number 20010021299
- Publication date Sep 13, 2001
- KIICHI HAMAMOTO
- G02 - OPTICS
Information Patent Application
SINGLE-TRANSVERSE-MODE LASER DIODE WITH MULTI-MODE WAVEGUIDE REGION...
- Publication number 20010014109
- Publication date Aug 16, 2001
- KIICHI HAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS

KIICHI HAMAMOTO

Person

Patents Grantslast 30 patents

Semiconductor laser diode, semiconductor optical amplifier, and opt...

Single-transverse-mode laser diode with multi-mode waveguide region...

Semiconductor optical amplifier and semiconductor laser

Semiconductor laser, semiconductor optical amplifier, and productio...

Semiconductor waveguide photodetector

Single-transverse-mode laser diode with multi-mode waveguide region...

Single-transverse-mode 1&#x000D7;N multi-mode interferometer type s...

Semiconductor optical amplifier

Method of manufacturing compound semiconductor integrated circuit

Light wavelength filtering circuit and manufacturing method thereof

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

Patents Applicationslast 30 patents

Semiconductor Laser Diode, Semiconductor Optical Amplifier, and Opt...

Single-transverse-mode laser diode with multi-mode waveguide region...

Multi-mode interference waveguide-including semiconductor laser dio...

Semiconductor optical amplifier and semiconductor laser

SEMICONDUCTOR WAVEGUIDE PHOTODETECTOR

SINGLE-TRANSVERSE-MODE LASER DIODE WITH MULTI-MODE WAVEGUIDE REGION...

Single-transverse-mode 1×N multi-mode interferometer type s...