Ryozo Yamauchi

Person

Sakura-shi, Chiba-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Dispersion compensating optical fiber and dispersion compensating o...
- Patent number 7,496,261
- Issue date Feb 24, 2009
- Fujikura Ltd.
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Grant
Optical fiber and optical transmission system
- Patent number 7,076,139
- Issue date Jul 11, 2006
- Fujikura Ltd.
- Kazuhiko Aikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization-maintaining optical fiber and polarization-maintaining...
- Patent number 7,050,672
- Issue date May 23, 2006
- Fujikura Ltd.
- Ryokichi Matsumoto
- G02 - OPTICS
Information Patent Grant
Dispersion compensating optical fiber and dispersion compensating o...
- Patent number 6,965,719
- Issue date Nov 15, 2005
- Fujikura Ltd.
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Grant
Multimode optical fiber with a higher order mode removing function
- Patent number 6,535,678
- Issue date Mar 18, 2003
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Method of manufacturing polarization-maintaining optical fiber coupler
- Patent number 6,463,195
- Issue date Oct 8, 2002
- Fujikura Ltd.
- Hideki Sasaki
- G02 - OPTICS
Information Patent Grant
Multiple wavelength excitation optical multiplexing device, multipl...
- Patent number 6,459,829
- Issue date Oct 1, 2002
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber grating and manufacturing method thereof
- Patent number 6,442,313
- Issue date Aug 27, 2002
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber grating and manufacturing method therefor
- Patent number 6,298,183
- Issue date Oct 2, 2001
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Method of making an optical waveguide grating with two dissimilar i...
- Patent number 5,996,375
- Issue date Dec 7, 1999
- Michihiro Nakai
- G02 - OPTICS
Information Patent Grant
Dispersion compensating optical fiber
- Patent number 5,995,695
- Issue date Nov 30, 1999
- Fujikura Ltd.
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Grant
Optical waveguide grating and production method therefor
- Patent number 5,949,934
- Issue date Sep 7, 1999
- Fujikura, Ltd.
- Kensuke Shima
- G02 - OPTICS
Information Patent Grant
Optical filter with planar optical waveguide having periodically va...
- Patent number 5,930,437
- Issue date Jul 27, 1999
- Fujikura Ltd.
- Michihiro Nakai
- G02 - OPTICS
Information Patent Grant
Optical-fiber coupler and manufacturing process therefor
- Patent number 5,848,208
- Issue date Dec 8, 1998
- Fujikura Ltd.
- Fumio Suzuki
- G02 - OPTICS
Information Patent Grant
Optical fiber filter
- Patent number 5,732,170
- Issue date Mar 24, 1998
- Fujikura, Ltd.
- Satoshi Okude
- G02 - OPTICS
Information Patent Grant
Polarized wave holding optical fiber, production method therefor, c...
- Patent number 5,689,578
- Issue date Nov 18, 1997
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Erbium-doped silica optical fiber preform
- Patent number 5,526,459
- Issue date Jun 11, 1996
- Fujikura Ltd.
- Daiichirou Tanaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Solution doping of a silica preform with erbium, aluminum and phosp...
- Patent number 5,474,588
- Issue date Dec 12, 1995
- Fujikura Ltd.
- Daiichirou Tanaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for splicing and reinforcing carbon coated optical fibers
- Patent number 5,360,464
- Issue date Nov 1, 1994
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber having a core with a repeatedly changing constitution...
- Patent number 5,267,339
- Issue date Nov 30, 1993
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Method for splicing and reinforcing carbon coated optical fibers
- Patent number 5,223,014
- Issue date Jun 29, 1993
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber coupler
- Patent number 5,066,087
- Issue date Nov 19, 1991
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber coupler and a fabrication method for the same
- Patent number 5,058,979
- Issue date Oct 22, 1991
- Fujikura Ltd.
- Ryozo Yamauchi
- G02 - OPTICS
Information Patent Grant
Optical fiber coupler manufacturing device
- Patent number 5,030,265
- Issue date Jul 9, 1991
- Fujikura Ltd.
- Fumio Suzuki
- G02 - OPTICS
Information Patent Grant
Manufacturing method for polarization maintaining optical fiber cou...
- Patent number 5,024,501
- Issue date Jun 18, 1991
- Fujikura Ltd.
- Hiroyuki Taya
- G02 - OPTICS
Information Patent Grant
Method of manufacturing a preform for asymmetrical optical fiber
- Patent number 4,935,045
- Issue date Jun 19, 1990
- Fujikura Ltd.
- Ryozo Yamauchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of manufacturing a preform for asymmetrical optical fiber
- Patent number 4,834,786
- Issue date May 30, 1989
- Fujikura Ltd.
- Ryozo Yamauchi
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Dispersion compensating optical fiber and dispersion compensating o...
- Publication number 20060062534
- Publication date Mar 23, 2006
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Application
Dispersion compensating optical fiber and dispersion compensating o...
- Publication number 20030049006
- Publication date Mar 13, 2003
- Kazuhiko Aikawa
- G02 - OPTICS
Information Patent Application
Optical fiber grating and manufacturing method thereof
- Publication number 20010019643
- Publication date Sep 6, 2001
- Ryozo Yamauchi
- G02 - OPTICS

Ryozo Yamauchi

Person

Patents Grantslast 30 patents

Dispersion compensating optical fiber and dispersion compensating o...

Optical fiber and optical transmission system

Polarization-maintaining optical fiber and polarization-maintaining...

Dispersion compensating optical fiber and dispersion compensating o...

Multimode optical fiber with a higher order mode removing function

Method of manufacturing polarization-maintaining optical fiber coupler

Multiple wavelength excitation optical multiplexing device, multipl...

Optical fiber grating and manufacturing method thereof

Optical fiber grating and manufacturing method therefor

Method of making an optical waveguide grating with two dissimilar i...

Dispersion compensating optical fiber

Optical waveguide grating and production method therefor

Optical filter with planar optical waveguide having periodically va...

Optical-fiber coupler and manufacturing process therefor

Optical fiber filter

Polarized wave holding optical fiber, production method therefor, c...

Erbium-doped silica optical fiber preform

Solution doping of a silica preform with erbium, aluminum and phosp...

Method for splicing and reinforcing carbon coated optical fibers

Optical fiber having a core with a repeatedly changing constitution...

Method for splicing and reinforcing carbon coated optical fibers

Optical fiber coupler

Optical fiber coupler and a fabrication method for the same

Optical fiber coupler manufacturing device

Manufacturing method for polarization maintaining optical fiber cou...

Method of manufacturing a preform for asymmetrical optical fiber

Method of manufacturing a preform for asymmetrical optical fiber

Patents Applicationslast 30 patents

Dispersion compensating optical fiber and dispersion compensating o...

Dispersion compensating optical fiber and dispersion compensating o...

Optical fiber grating and manufacturing method thereof