Takao Edahiro

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission fiber and process for producing the same
- Patent number 5,033,815
- Issue date Jul 23, 1991
- Nippon Telephone & Telegraph
- Takao Edahiro
- G02 - OPTICS
Information Patent Grant
Method for making single-polorization, single mode optical fibers
- Patent number 4,838,916
- Issue date Jun 13, 1989
- Nippon Telegraph & Telephone Public Corporation
- Takao Edahiro
- G02 - OPTICS
Information Patent Grant
Process for producing optical glass product
- Patent number 4,528,010
- Issue date Jul 9, 1985
- Nippon Telegraph and Telephone Public Corporation
- Takao Edahiro
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Single mode optical fibers
- Patent number 4,525,027
- Issue date Jun 25, 1985
- Nippon Telegraph and Telephone Public Corp.
- Katsunari Okamoto
- G02 - OPTICS
Information Patent Grant
Single-polarization single-mode optical fiber
- Patent number 4,480,897
- Issue date Nov 6, 1984
- Nippon Telegraph & Telephone Public Corporation
- Katsunari Okamoto
- G02 - OPTICS
Information Patent Grant
Process for producing optical fiber preform
- Patent number 4,414,008
- Issue date Nov 8, 1983
- Nippon Telegraph & Telephone Public Corporation
- Takao Edahiro
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Core torch for fabricating single-mode optical fiber preforms
- Patent number 4,406,684
- Issue date Sep 27, 1983
- Nippon Telegraph & Telephone Public Corporation
- Masao Kawachi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing high-purity silica glass
- Patent number 4,406,680
- Issue date Sep 27, 1983
- Nippon Telegraph & Telephone Public Corporation
- Takao Edahiro
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for preparing glass preform for optical fiber
- Patent number 4,402,720
- Issue date Sep 6, 1983
- Nippon Telegraph & Telephone Public Corporation
- Takao Edahiro
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Single mode optical fibers
- Patent number 4,372,647
- Issue date Feb 8, 1983
- Nippon Telegraph & Telephone Public Corporation
- Katsunari Okamoto
- G02 - OPTICS
Information Patent Grant
Method of fabricating multi-mode optical fiber preforms
- Patent number 4,367,085
- Issue date Jan 4, 1983
- Nippon Telegraph & Telephone Public Corporation
- Shoichi Suto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Fabrication method of single-mode optical fiber preforms
- Patent number 4,345,928
- Issue date Aug 24, 1982
- Nippon Telegraph & Telephone Public Corporation
- Masao Kawachi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing a glass preform for optical fiber
- Patent number 4,338,111
- Issue date Jul 6, 1982
- Nippon Telegraph & Telephone Public Corporation
- Takao Edahiro
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing optical fiber preform
- Patent number 4,318,726
- Issue date Mar 9, 1982
- Nippon Telegraph and Telephone Public Corp.
- Takao Edahiro
- C03 - GLASS MINERAL OR SLAG WOOL

Takao Edahiro

Person

Patents Grantslast 30 patents

Optical transmission fiber and process for producing the same

Method for making single-polorization, single mode optical fibers

Process for producing optical glass product

Single mode optical fibers

Single-polarization single-mode optical fiber

Process for producing optical fiber preform

Core torch for fabricating single-mode optical fiber preforms

Process for producing high-purity silica glass

Process for preparing glass preform for optical fiber

Single mode optical fibers

Method of fabricating multi-mode optical fiber preforms

Fabrication method of single-mode optical fiber preforms

Process for producing a glass preform for optical fiber

Process for producing optical fiber preform