Hisayoshi Toratani

Person

Hidaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light polarizing glass containing copper particles and process for...
- Patent number 6,313,947
- Issue date Nov 6, 2001
- Hoya Corporation
- Takeshi Takahashi
- G02 - OPTICS
Information Patent Grant
Disc substrates for information recording discs and magnetic discs
- Patent number 6,214,429
- Issue date Apr 10, 2001
- Hoya Corporation
- Xuelu Zou
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass substrate for magnetic recording medium and method of manufac...
- Patent number 6,187,407
- Issue date Feb 13, 2001
- Hoya Corporation
- Xuelu Zou
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate for information recording media and magnetic disc
- Patent number 6,063,470
- Issue date May 16, 2000
- Hoya Corporation
- Xuelu Zou
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for selecting a material suitable for a substrate for inform...
- Patent number 5,981,015
- Issue date Nov 9, 1999
- Hoya Corporation
- Xuelu Zou
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical fibers and optical fiber amplifiers
- Patent number 5,856,882
- Issue date Jan 5, 1999
- Hoya Corporation
- Hiroaki Yanagita
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Laser glasses and laser glass fibers
- Patent number 5,764,661
- Issue date Jun 9, 1998
- Hoya Corporation
- Hiromasa Tawarayama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Faraday rotation glass
- Patent number 5,246,892
- Issue date Sep 21, 1993
- Hoya Corporation
- Hiroaki Yanagita
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass of improved thermal shock resistance for high average power s...
- Patent number 5,053,165
- Issue date Oct 1, 1991
- Hoya Optics, Inc.
- Hisayoshi Toratani
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for producing porous antireflective coatings
- Patent number 4,693,910
- Issue date Sep 15, 1987
- Hoya Corporation
- Sadahiro Nakajima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of increasing the thermal shock resistance of phosphate lase...
- Patent number 4,547,402
- Issue date Oct 15, 1985
- Hoya Corporation
- Sadahiro Nakajima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Edge-cladding glass of disc laser glass
- Patent number 4,217,382
- Issue date Aug 12, 1980
- Hoya Corporation
- Hisayoshi Toratani
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical phosphate glass in which the length of the light path is te...
- Patent number 4,108,673
- Issue date Aug 22, 1978
- Hoya Corporation
- Hisayoshi Toratani
- C03 - GLASS MINERAL OR SLAG WOOL

Hisayoshi Toratani

Person

Patents Grantslast 30 patents

Light polarizing glass containing copper particles and process for...

Disc substrates for information recording discs and magnetic discs

Glass substrate for magnetic recording medium and method of manufac...

Substrate for information recording media and magnetic disc

Method for selecting a material suitable for a substrate for inform...

Optical fibers and optical fiber amplifiers

Laser glasses and laser glass fibers

Faraday rotation glass

Glass of improved thermal shock resistance for high average power s...

Process for producing porous antireflective coatings

Method of increasing the thermal shock resistance of phosphate lase...

Edge-cladding glass of disc laser glass

Optical phosphate glass in which the length of the light path is te...