Koichi Harada

Person

Sakura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for fabricating porous silica preform
- Patent number 8,375,749
- Issue date Feb 19, 2013
- Fujikura Ltd.
- Kentaro Ichii
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Optical fiber drawing and twisting apparatus
- Patent number 7,966,846
- Issue date Jun 28, 2011
- Fujikura Ltd.
- Kenji Okada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber twisting apparatus with a roller having an accuracy o...
- Patent number 7,845,195
- Issue date Dec 7, 2010
- Fujikura Ltd.
- Kenji Okada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for measuring a differential mode delay of a multimode optic...
- Patent number 7,817,257
- Issue date Oct 19, 2010
- Fujikura Ltd.
- Katsuhiro Takenaga
- G01 - MEASURING TESTING
Information Patent Grant
Drawing method for bare optical fiber with suppressed hydrogen diff...
- Patent number 7,658,086
- Issue date Feb 9, 2010
- Fujikura Ltd.
- Kenji Okada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for fabricating porous silica preform
- Patent number 7,647,792
- Issue date Jan 19, 2010
- Fujikura Ltd.
- Kentaro Ichii
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Treatment method for optical fiber
- Patent number 7,596,292
- Issue date Sep 29, 2009
- Fujikura Ltd.
- Takahiro Hamada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for treating optical fiber and apparatus for treating optica...
- Patent number 7,486,863
- Issue date Feb 3, 2009
- Fujikura Ltd.
- Takahiro Hamada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Higher order mode dispersion compensating fiber and mode converter...
- Patent number 7,412,128
- Issue date Aug 12, 2008
- Fujikura Ltd.
- Ning Guan
- G02 - OPTICS
Information Patent Grant
Higher order mode dispersion compensating fiber and mode converter...
- Patent number 7,263,267
- Issue date Aug 28, 2007
- Fujikura Ltd.
- Ning Guan
- G02 - OPTICS
Information Patent Grant
Optical fiber polarization mode dispersion measurement method and m...
- Patent number 7,212,281
- Issue date May 1, 2007
- Fujikura, Ltd.
- Shoji Tanigawa
- G01 - MEASURING TESTING
Information Patent Grant
Multi-tube burner and glass preform manufacturing method using the...
- Patent number 7,165,425
- Issue date Jan 23, 2007
- Fujikura Ltd.
- Keisuke Uchiyama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber
- Patent number 7,164,835
- Issue date Jan 16, 2007
- Fujikura, Ltd.
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Grant
Optical fiber
- Patent number 7,158,706
- Issue date Jan 2, 2007
- Fujikura Ltd.
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Grant
Method for compensating modal dispersion in multimode optical fiber...
- Patent number 7,139,457
- Issue date Nov 21, 2006
- Fujikura Ltd.
- Ning Guan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber, optical fiber preform, and manufacturing method ther...
- Patent number 7,069,748
- Issue date Jul 4, 2006
- Fujikura, Ltd.
- Keisuke Uchiyama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber and optical transmission path
- Patent number 7,062,136
- Issue date Jun 13, 2006
- Fujikura Ltd.
- Shoji Tanigawa
- G02 - OPTICS
Information Patent Grant
Optical fiber drawing die and drawing method therefor
- Patent number 7,041,334
- Issue date May 9, 2006
- Fujikura Ltd.
- Munehisa Fujimaki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Dispersion-compensating optical fiber and hybrid transmission line
- Patent number 6,980,723
- Issue date Dec 27, 2005
- Fujikura Ltd.
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Grant
Single-mode optical fiber and composite optical line
- Patent number 6,895,140
- Issue date May 17, 2005
- Fujikura, Ltd.
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Grant
Optical fiber and optical transmission path
- Patent number 6,819,847
- Issue date Nov 16, 2004
- Fujikura Ltd.
- Shoichiro Matsuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion-compensating optical fiber and hybrid transmission line
- Patent number 6,813,430
- Issue date Nov 2, 2004
- Fujikura, Ltd.
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Grant
Coated optical fiber and manufacturing method and apparatus therefor
- Patent number 6,768,854
- Issue date Jul 27, 2004
- Fujikura Ltd.
- Koji Tsuruśaki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber having improved hydrogen resistance
- Patent number 6,647,190
- Issue date Nov 11, 2003
- Fujikura Ltd.
- Shoichiro Matsuo
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR FABRICATING POROUS SILICAPREFORM AND POROUS SILICA PREFORM
- Publication number 20100077800
- Publication date Apr 1, 2010
- FUJIKURA LTD.
- Kentaro Ichii
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
OPTICAL FIBER TWISTING APPARATUS, METHOD OF MANUFACTURING OPTICAL F...
- Publication number 20090303464
- Publication date Dec 10, 2009
- FUJIKURA LTD.
- Kenji Okada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Single Mode Optical Fiber and Manufacturing Method Therefor
- Publication number 20090084141
- Publication date Apr 2, 2009
- FUJIKURA LTD.
- Tomohiro Nunome
- G02 - OPTICS
Information Patent Application
HIGHER ORDER MODE DISPERSION COMPENSATING FIBER AND MODE CONVERTER...
- Publication number 20070201791
- Publication date Aug 30, 2007
- FUJIKURA LTD.
- Ning Guan
- G02 - OPTICS
Information Patent Application
Optical fiber twisting apparatus, method of manufacturing optical f...
- Publication number 20060245713
- Publication date Nov 2, 2006
- FUJIKURA LTD.
- Kenji Okada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Method for treating optical fiber and apparatus for treating optica...
- Publication number 20060233502
- Publication date Oct 19, 2006
- FUJIKURA LTD.
- Takahiro Hamada
- G02 - OPTICS
Information Patent Application
Drawing method for bare optical fiber, manufacturing method for opt...
- Publication number 20060204193
- Publication date Sep 14, 2006
- FUJIKURA LTD.
- Kenji Okada
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Treatment method for optical fiber
- Publication number 20060127018
- Publication date Jun 15, 2006
- FUJIKURA LTD.
- Takahiro Hamada
- G02 - OPTICS
Information Patent Application
Optical fiber
- Publication number 20060039665
- Publication date Feb 23, 2006
- FUJIKURA LTD.
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Application
Method for compensating modal dispersion in multimode optical fiber...
- Publication number 20060034573
- Publication date Feb 16, 2006
- FUJIKURA LTD.
- Ning Guan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical fiber drawing die and drawing method therefor
- Publication number 20060016393
- Publication date Jan 26, 2006
- Fujikara Ltd.
- Munehisa Fujimaki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical fiber polarization mode dispersion measurement method and m...
- Publication number 20050259241
- Publication date Nov 24, 2005
- Shoji Tanigawa
- G01 - MEASURING TESTING
Information Patent Application
Method for fabricating porous silicapreform and porous silica preform
- Publication number 20050109065
- Publication date May 26, 2005
- FUJIKURA LTD.
- Kentaro Ichii
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Higher order mode dispersion compensating fiber and mode converter...
- Publication number 20050013572
- Publication date Jan 20, 2005
- FUJIKURA LTD.
- Ning Guan
- G02 - OPTICS
Information Patent Application
Dispersion-compensating optical fiber and hybrid transmission line
- Publication number 20040234219
- Publication date Nov 25, 2004
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Application
DISPERSION-COMPENSATING OPTICAL FIBER AND HYBRID TRANSMISSION LINE
- Publication number 20040109656
- Publication date Jun 10, 2004
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Application
Multi-tube burner and glass preform manufacturing method using the...
- Publication number 20040065120
- Publication date Apr 8, 2004
- FUJIKURA LTD.
- Keisuke Uchiyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Optical fiber and optical transmission path
- Publication number 20030215202
- Publication date Nov 20, 2003
- FUJIKURA LTD.
- Shoji Tanigawa
- G02 - OPTICS
Information Patent Application
Optical fiber and optical transmission path
- Publication number 20030215201
- Publication date Nov 20, 2003
- FUJIKURA LTD.
- Shoji Tanigawa
- G02 - OPTICS
Information Patent Application
Single-mode optical fiber and composite optical line
- Publication number 20030169988
- Publication date Sep 11, 2003
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Application
Optical fiber
- Publication number 20030156810
- Publication date Aug 21, 2003
- FUJIKURA LTD.
- Shoichiro Matsuo
- G02 - OPTICS
Information Patent Application
Optical fiber and optical transmission path
- Publication number 20030152347
- Publication date Aug 14, 2003
- FUJIKURA LTD.
- Shoichiro Matsuo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coated optical fiber and manufacturing method and apparatus therefor
- Publication number 20030138230
- Publication date Jul 24, 2003
- COATED OPTICAL FIBER AND MANUFACTURING METHOD AND APPARATUS THEREFOR
- Koji Tsurusaki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Optical fiber drawing die and drawing method therefor
- Publication number 20030136340
- Publication date Jul 24, 2003
- FUJIKURA LTD.
- Munehisa Fujimaki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Single mode optical fiber and manufacturing method therefor
- Publication number 20030110811
- Publication date Jun 19, 2003
- SINGLE MODE OPTICAL FIBER AND MANUFACTURING METHOD THEREFOR
- Tomohiro Nunome
- G02 - OPTICS
Information Patent Application
Optical fiber,optical fiber preform, and manufacturing method therefor
- Publication number 20030091308
- Publication date May 15, 2003
- Keisuke Uchiyama
- G02 - OPTICS
Information Patent Application
Optical fiber, optical fiber preform, and method for manufacturing...
- Publication number 20030063878
- Publication date Apr 3, 2003
- Shoichiro Matsuo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber
- Publication number 20020061175
- Publication date May 23, 2002
- Shoichiro Matsuo
- C03 - GLASS MINERAL OR SLAG WOOL

Koichi Harada

Person

Patents Grantslast 30 patents

Method for fabricating porous silica preform

Optical fiber drawing and twisting apparatus

Optical fiber twisting apparatus with a roller having an accuracy o...

Method for measuring a differential mode delay of a multimode optic...

Drawing method for bare optical fiber with suppressed hydrogen diff...

Method for fabricating porous silica preform

Treatment method for optical fiber

Method for treating optical fiber and apparatus for treating optica...

Higher order mode dispersion compensating fiber and mode converter...

Higher order mode dispersion compensating fiber and mode converter...

Optical fiber polarization mode dispersion measurement method and m...

Multi-tube burner and glass preform manufacturing method using the...

Optical fiber

Optical fiber

Method for compensating modal dispersion in multimode optical fiber...

Optical fiber, optical fiber preform, and manufacturing method ther...

Optical fiber and optical transmission path

Optical fiber drawing die and drawing method therefor

Dispersion-compensating optical fiber and hybrid transmission line

Single-mode optical fiber and composite optical line

Optical fiber and optical transmission path

Dispersion-compensating optical fiber and hybrid transmission line

Coated optical fiber and manufacturing method and apparatus therefor

Optical fiber having improved hydrogen resistance

Patents Applicationslast 30 patents

METHOD FOR FABRICATING POROUS SILICAPREFORM AND POROUS SILICA PREFORM

OPTICAL FIBER TWISTING APPARATUS, METHOD OF MANUFACTURING OPTICAL F...

Single Mode Optical Fiber and Manufacturing Method Therefor

HIGHER ORDER MODE DISPERSION COMPENSATING FIBER AND MODE CONVERTER...

Optical fiber twisting apparatus, method of manufacturing optical f...

Method for treating optical fiber and apparatus for treating optica...

Drawing method for bare optical fiber, manufacturing method for opt...

Treatment method for optical fiber

Optical fiber

Method for compensating modal dispersion in multimode optical fiber...

Optical fiber drawing die and drawing method therefor

Optical fiber polarization mode dispersion measurement method and m...

Method for fabricating porous silicapreform and porous silica preform

Higher order mode dispersion compensating fiber and mode converter...

Dispersion-compensating optical fiber and hybrid transmission line

DISPERSION-COMPENSATING OPTICAL FIBER AND HYBRID TRANSMISSION LINE

Multi-tube burner and glass preform manufacturing method using the...

Optical fiber and optical transmission path

Optical fiber and optical transmission path

Single-mode optical fiber and composite optical line

Optical fiber

Optical fiber and optical transmission path

Coated optical fiber and manufacturing method and apparatus therefor

Optical fiber drawing die and drawing method therefor

Single mode optical fiber and manufacturing method therefor

Optical fiber,optical fiber preform, and manufacturing method therefor

Optical fiber, optical fiber preform, and method for manufacturing...

Optical fiber