Masakazu Shigehara

Person

Yokohama-shi Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Fiber connection structure provided with optical connector, module,...
- Patent number 11,555,967
- Issue date Jan 17, 2023
- Sumitomo Electric Industries, Ltd.
- Kazuya Masuda
- G02 - OPTICS
Information Patent Grant
Optical fiber and optical fiber grating
- Patent number 10,962,709
- Issue date Mar 30, 2021
- Sumitomo Electric Industries, Ltd.
- Shigehiro Nagano
- G02 - OPTICS
Information Patent Grant
Stranded optical cable with connectors
- Patent number 9,176,295
- Issue date Nov 3, 2015
- Sumitomo Electric Industries, Ltd.
- Itaru Sakabe
- G02 - OPTICS
Information Patent Grant
Optical module and optical system
- Patent number 8,821,036
- Issue date Sep 2, 2014
- Sumitomo Electric Industries, Ltd.
- Masakazu Shigehara
- G02 - OPTICS
Information Patent Grant
Optical signal processor and optical signal processing method for p...
- Patent number 7,521,660
- Issue date Apr 21, 2009
- Sumitomo Electric Industries, Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Diffraction grating element, production method of diffraction grati...
- Patent number 7,502,167
- Issue date Mar 10, 2009
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Grant
Optical fiber and fiber grating type filter including the same
- Patent number 7,203,399
- Issue date Apr 10, 2007
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Grant
Diffraction grating element, production method of diffraction grati...
- Patent number 7,184,214
- Issue date Feb 27, 2007
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Grant
Optical device control apparatus and optical device control method
- Patent number 7,110,636
- Issue date Sep 19, 2006
- Sumitomo Electric Industries, Ltd.
- Kenichiro Takahashi
- G02 - OPTICS
Information Patent Grant
Diffraction grating element
- Patent number 7,085,054
- Issue date Aug 1, 2006
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical amplifier and optical communication system including the same
- Patent number 7,079,311
- Issue date Jul 18, 2006
- Sumitomo Electric Industries, Ltd.
- Motoki Kakui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Diffraction grating element, production method of diffraction grati...
- Patent number 7,019,904
- Issue date Mar 28, 2006
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Grant
Optical component, optical device and optical communications system
- Patent number 6,965,475
- Issue date Nov 15, 2005
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain equalizer and optical amplification apparatus
- Patent number 6,952,511
- Issue date Oct 4, 2005
- Sumitomo Electric Industries, Ltd.
- Masakazu Shigehara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Diffraction grating element
- Patent number 6,917,471
- Issue date Jul 12, 2005
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G01 - MEASURING TESTING
Information Patent Grant
Variable dispersion compensator and optical transmission system
- Patent number 6,892,003
- Issue date May 10, 2005
- Sumitomo Electric Industries, Ltd.
- Makoto Katayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pumping light source unit, raman amplifier, and optical transmissio...
- Patent number 6,867,907
- Issue date Mar 15, 2005
- Sumitomo Electric Industries, Ltd.
- Masayuki Inoue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber with built-in grating and optical fiber for forming g...
- Patent number 6,842,566
- Issue date Jan 11, 2005
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical signal processor
- Patent number 6,825,981
- Issue date Nov 30, 2004
- Sumitomo Electric Industries, Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Optical multiplexer/demultiplexer and adjustment method thereof
- Patent number 6,823,106
- Issue date Nov 23, 2004
- Sumitomo Electric Industries, Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Optical amplifier and optical communication system including the same
- Patent number 6,819,482
- Issue date Nov 16, 2004
- Sumitomo Electric Industries, Ltd.
- Motoki Kakui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Diffraction grating device manufacturing method, diffraction gratin...
- Patent number 6,804,437
- Issue date Oct 12, 2004
- Sumitomo Electric Industries, Ltd.
- Kiyotaka Murashima
- G02 - OPTICS
Information Patent Grant
Optical component
- Patent number 6,788,874
- Issue date Sep 7, 2004
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Grant
Optical fiber grating device
- Patent number 6,785,444
- Issue date Aug 31, 2004
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Grant
Branch line monitoring system and branch line monitoring method
- Patent number 6,771,358
- Issue date Aug 3, 2004
- Sumitomo Electric Industries, Ltd.
- Masakazu Shigehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical waveguide type defraction grating device and a method of ma...
- Patent number 6,766,080
- Issue date Jul 20, 2004
- Sumitomo Electric Industries, Ltd.
- Masaki Ohmura
- G02 - OPTICS
Information Patent Grant
Optical filter functioning as both a gain equalizer and noise-light...
- Patent number 6,738,183
- Issue date May 18, 2004
- Sumitomo Electric Industries, Ltd.
- Masakazu Shigehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical filter having cascaded long-period gratings
- Patent number 6,665,472
- Issue date Dec 16, 2003
- Sumitomo Electric Industries, Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Optical waveguide grating and method of making the same
- Patent number 6,580,854
- Issue date Jun 17, 2003
- Sumitomo Electric Industries, Ltd.
- Tadashi Enomoto
- G02 - OPTICS
Information Patent Grant
Long-period grating device
- Patent number 6,563,984
- Issue date May 13, 2003
- Sumitomo Electric Industries, Ltd.
- Michiko Harumoto
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL CONNECTOR
- Publication number 20240103235
- Publication date Mar 28, 2024
- SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
- Masayuki YAMAZAKI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER AND OPTICAL FIBER FILTER
- Publication number 20220196908
- Publication date Jun 23, 2022
- Sumitomo Electric Industries, Ltd.
- Shigehiro NAGANO
- G02 - OPTICS
Information Patent Application
FIBER CONNECTION STRUCTURE PROVIDED WITH OPTICAL CONNECTOR, MODULE,...
- Publication number 20210333484
- Publication date Oct 28, 2021
- Sumitomo Electric Industries, Ltd.
- Kazuya MASUDA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER AND OPTICAL FIBER GRATING
- Publication number 20200408986
- Publication date Dec 31, 2020
- Sumitomo Electric Industries, Ltd.
- Shigehiro NAGANO
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE AND OPTICAL SYSTEM
- Publication number 20120163757
- Publication date Jun 28, 2012
- Sumitomo Electric Industries, Ltd.
- Masakazu SHIGEHARA
- G02 - OPTICS
Information Patent Application
STRANDED OPTICAL CABLE WITH CONNECTORS
- Publication number 20120106906
- Publication date May 3, 2012
- Sumitomo Electric Industries, Ltd.
- Itaru Sakabe
- G02 - OPTICS
Information Patent Application
Diffraction grating element, production method of diffraction grati...
- Publication number 20070146884
- Publication date Jun 28, 2007
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Diffraction grating element
- Publication number 20060262305
- Publication date Nov 23, 2006
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Diffraction grating element, production method of diffraction grati...
- Publication number 20060139756
- Publication date Jun 29, 2006
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Optical signal processor and optical signal processing method
- Publication number 20050238285
- Publication date Oct 27, 2005
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Diffraction grating element
- Publication number 20050231805
- Publication date Oct 20, 2005
- Sumitomo Electric Industries, Ltd.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Diffraction grating element, production method of diffraction grati...
- Publication number 20050152037
- Publication date Jul 14, 2005
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
OPTICAL COMPONENT, OPTICAL DEVICE AND OPTICAL COMMUNICATIONS SYSTEM
- Publication number 20050128591
- Publication date Jun 16, 2005
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Manabu Shiozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifier and optical communication system including the same
- Publication number 20050078357
- Publication date Apr 14, 2005
- Sumitomo Electric Industries, Ltd.
- Motoki Kakui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical device control apparatus and optical device control method
- Publication number 20050025413
- Publication date Feb 3, 2005
- Kenichiro Takahashi
- G02 - OPTICS
Information Patent Application
Diffraction grating element
- Publication number 20040212890
- Publication date Oct 28, 2004
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Diffraction grating element, optical module and optical communicati...
- Publication number 20040201892
- Publication date Oct 14, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Optical fiber and fiber grating type filter including the same
- Publication number 20040151467
- Publication date Aug 5, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Application
Transmitted type diffractive optical element
- Publication number 20040136073
- Publication date Jul 15, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Application
Gain equalizer and optical amplification apparatus
- Publication number 20040109638
- Publication date Jun 10, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Masakazu Shigehara
- G02 - OPTICS
Information Patent Application
Optical element
- Publication number 20040080823
- Publication date Apr 29, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Optical signal processor
- Publication number 20040076368
- Publication date Apr 22, 2004
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Diffraction grating device manufacturing method, diffraction gratin...
- Publication number 20030165294
- Publication date Sep 4, 2003
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Kiyotaka Murashima
- G02 - OPTICS
Information Patent Application
Optical fiber grating device
- Publication number 20030103727
- Publication date Jun 5, 2003
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Application
Optical amplifier and optical communication system including the same
- Publication number 20030090782
- Publication date May 15, 2003
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Motoki Kakui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical multiplexer/demultiplexer and adjustment method thereof
- Publication number 20030063385
- Publication date Apr 3, 2003
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Optical fiber with built-in grating and optical fiber for forming g...
- Publication number 20030021533
- Publication date Jan 30, 2003
- Shinji Ishikawa
- G02 - OPTICS
Information Patent Application
Optical waveguide type defraction grating device and a method of ma...
- Publication number 20030012498
- Publication date Jan 16, 2003
- Masaki Ohmura
- G02 - OPTICS
Information Patent Application
Pumping light source unit, raman amplifier, and optical transmissio...
- Publication number 20030002143
- Publication date Jan 2, 2003
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Masayuki Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Long period grating and making method of the same
- Publication number 20020181105
- Publication date Dec 5, 2002
- Michiko Takushima
- G02 - OPTICS

Masakazu Shigehara

Person

Patents Grantslast 30 patents

Fiber connection structure provided with optical connector, module,...

Optical fiber and optical fiber grating

Stranded optical cable with connectors

Optical module and optical system

Optical signal processor and optical signal processing method for p...

Diffraction grating element, production method of diffraction grati...

Optical fiber and fiber grating type filter including the same

Diffraction grating element, production method of diffraction grati...

Optical device control apparatus and optical device control method

Diffraction grating element

Optical amplifier and optical communication system including the same

Diffraction grating element, production method of diffraction grati...

Optical component, optical device and optical communications system

Gain equalizer and optical amplification apparatus

Diffraction grating element

Variable dispersion compensator and optical transmission system

Pumping light source unit, raman amplifier, and optical transmissio...

Optical fiber with built-in grating and optical fiber for forming g...

Optical signal processor

Optical multiplexer/demultiplexer and adjustment method thereof

Optical amplifier and optical communication system including the same

Diffraction grating device manufacturing method, diffraction gratin...

Optical component

Optical fiber grating device

Branch line monitoring system and branch line monitoring method

Optical waveguide type defraction grating device and a method of ma...

Optical filter functioning as both a gain equalizer and noise-light...

Optical filter having cascaded long-period gratings

Optical waveguide grating and method of making the same

Long-period grating device

Patents Applicationslast 30 patents

OPTICAL CONNECTOR

OPTICAL FIBER AND OPTICAL FIBER FILTER

FIBER CONNECTION STRUCTURE PROVIDED WITH OPTICAL CONNECTOR, MODULE,...

OPTICAL FIBER AND OPTICAL FIBER GRATING

OPTICAL MODULE AND OPTICAL SYSTEM

STRANDED OPTICAL CABLE WITH CONNECTORS

Diffraction grating element, production method of diffraction grati...

Diffraction grating element

Diffraction grating element, production method of diffraction grati...

Optical signal processor and optical signal processing method

Diffraction grating element

Diffraction grating element, production method of diffraction grati...

OPTICAL COMPONENT, OPTICAL DEVICE AND OPTICAL COMMUNICATIONS SYSTEM

Optical amplifier and optical communication system including the same

Optical device control apparatus and optical device control method

Diffraction grating element

Diffraction grating element, optical module and optical communicati...

Optical fiber and fiber grating type filter including the same

Transmitted type diffractive optical element

Gain equalizer and optical amplification apparatus

Optical element

Optical signal processor

Diffraction grating device manufacturing method, diffraction gratin...

Optical fiber grating device

Optical amplifier and optical communication system including the same

Optical multiplexer/demultiplexer and adjustment method thereof

Optical fiber with built-in grating and optical fiber for forming g...

Optical waveguide type defraction grating device and a method of ma...

Pumping light source unit, raman amplifier, and optical transmissio...

Long period grating and making method of the same