Koji Nakazato

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Laser processing apparatus and processing method employed therein
- Patent number 8,546,722
- Issue date Oct 1, 2013
- Sumitomo Electric Industries, Ltd
- Eiichiro Yamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Metal heating apparatus, metal heating method, and light source app...
- Patent number 8,303,738
- Issue date Nov 6, 2012
- Sumitomo Electric Industries, Ltd.
- Eiichiro Yamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical transmission monitoring apparatus, optical transmission mon...
- Patent number 6,599,039
- Issue date Jul 29, 2003
- Sumitomo Electric Industries, Ltd.
- Koji Nakazato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier for wavelength-multiplexing transmission
- Patent number 6,359,727
- Issue date Mar 19, 2002
- Sumitomo Electric Industries, Ltd.
- Koji Nakazato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-channel variable optical attenuator
- Patent number 6,282,361
- Issue date Aug 28, 2001
- Sumitomo Electric Industries, Ltd.
- Masayuki Nishimura
- G02 - OPTICS
Information Patent Grant
Optical fiber amplifier and optical amplifier repeater
- Patent number 5,721,635
- Issue date Feb 24, 1998
- Sumitomo Electric Industries, Ltd.
- Masayuki Shigematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber amplifier and optical amplifier repeater
- Patent number 5,640,269
- Issue date Jun 17, 1997
- Sumitomo Electric Industries, Inc.
- Masayuki Shigematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical system for amplifying signal light
- Patent number 5,572,357
- Issue date Nov 5, 1996
- Sumitomo Electric Industries, Ltd.
- Koji Nakazato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical fiber amplifier and optical amplifier repeater
- Patent number 5,532,870
- Issue date Jul 2, 1996
- Sumitomo Electric Industries, Ltd.
- Masayuki Shigematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mode field diameter conversion optical fiber
- Patent number 5,446,820
- Issue date Aug 29, 1995
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Grant
Mode field diameter conversion fiber
- Patent number 5,381,503
- Issue date Jan 10, 1995
- Sumitomo Electric Industries, Ltd.
- Hiroo Kanamori
- G02 - OPTICS
Information Patent Grant
Optical functioning glass and apparatus using the same
- Patent number 5,377,294
- Issue date Dec 27, 1994
- Sumitomo Electric Industries, Ltd.
- Masahi Onishi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical functioning glass and method of manufacturing same, optical...
- Patent number 5,337,401
- Issue date Aug 9, 1994
- Sumitomo Electric Industries, Ltd.
- Masashi Onishi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical functioning glass and fiber amplifier
- Patent number 5,253,322
- Issue date Oct 12, 1993
- Sumitomo Electric Industries, Ltd.
- Masashi Onishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical functioning glass and apparatus using the same
- Patent number 5,244,846
- Issue date Sep 14, 1993
- Sumitomo Electric Industries, Ltd.
- Masashi Onishi
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
LASER PROCESSING APPARATUS AND PROCESSING METHOD EMPLOYED THEREIN
- Publication number 20110155709
- Publication date Jun 30, 2011
- Sumitomo Electric Industries, Ltd.
- Eiichiro Yamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Fiber bundle and light-source equipment
- Publication number 20080055922
- Publication date Mar 6, 2008
- Sumitomo Electric Industries, Ltd.
- Soichi Endo
- G02 - OPTICS
Information Patent Application
Semiconductor laser device
- Publication number 20060029114
- Publication date Feb 9, 2006
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Hiroshi Kohda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Metal heating apparatus, metal heating method, and light source app...
- Publication number 20060021681
- Publication date Feb 2, 2006
- Eiichiro Yamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Koji Nakazato

Person

Patents Grantslast 30 patents

Laser processing apparatus and processing method employed therein

Metal heating apparatus, metal heating method, and light source app...

Optical transmission monitoring apparatus, optical transmission mon...

Optical amplifier for wavelength-multiplexing transmission

Multi-channel variable optical attenuator

Optical fiber amplifier and optical amplifier repeater

Optical fiber amplifier and optical amplifier repeater

Optical system for amplifying signal light

Optical fiber amplifier and optical amplifier repeater

Mode field diameter conversion optical fiber

Mode field diameter conversion fiber

Optical functioning glass and apparatus using the same

Optical functioning glass and method of manufacturing same, optical...

Optical functioning glass and fiber amplifier

Optical functioning glass and apparatus using the same

Patents Applicationslast 30 patents

LASER PROCESSING APPARATUS AND PROCESSING METHOD EMPLOYED THEREIN

Fiber bundle and light-source equipment

Semiconductor laser device

Metal heating apparatus, metal heating method, and light source app...