Nobuyuki Yoshizawa

Person

Mito, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Submarine, optical-fiber cable with optical fibers having tensile s...
- Patent number 5,408,562
- Issue date Apr 18, 1995
- Nippon Telegraph & Telephone Corporation
- Nobuyuki Yoshizawa
- G02 - OPTICS
Information Patent Grant
Method for manufacturing a hermetically coated optical fiber
- Patent number 5,348,564
- Issue date Sep 20, 1994
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for producing hermetic coated optical fiber
- Patent number 5,281,247
- Issue date Jan 25, 1994
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Production of a hermetically coated optical fiber
- Patent number 5,235,666
- Issue date Aug 10, 1993
- Sumitomo Electric Industries, Ltd.
- Masaharu Ooe
- G02 - OPTICS
Information Patent Grant
Apparatus for producing hermetic coated optical fiber
- Patent number 5,194,080
- Issue date Mar 16, 1993
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Hermetically coated optical fiber
- Patent number 5,157,755
- Issue date Oct 20, 1992
- Sumitomo Electric Industries, Ltd.
- Masaharu Ooe
- G02 - OPTICS
Information Patent Grant
Optical cable and its manufacturing method
- Patent number 5,136,673
- Issue date Aug 4, 1992
- Nippon Telegraph & Telephone Corporation
- Nobuyuki Yoshizawa
- G02 - OPTICS
Information Patent Grant
Submarine optical fiber cable with dam means
- Patent number 4,684,213
- Issue date Aug 4, 1987
- Nippon Telegraph & Telephone Public Corporation
- Koushi Ishihara
- G02 - OPTICS

Nobuyuki Yoshizawa

Person

Patents Grantslast 30 patents

Submarine, optical-fiber cable with optical fibers having tensile s...

Method for manufacturing a hermetically coated optical fiber

Method for producing hermetic coated optical fiber

Production of a hermetically coated optical fiber

Apparatus for producing hermetic coated optical fiber

Hermetically coated optical fiber

Optical cable and its manufacturing method

Submarine optical fiber cable with dam means