Inventor

IZUMITANI TETSURO

31 patents

⚠️ This page may combine multiple inventors who share the name “IZUMITANI TETSURO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IZUMITANI TETSURO

HOYA CORP

Method for making contact lens hydrophilic

Single mode phosphate laser glass fiber

Method of molding glass body

Method of manufacturing pressed lenses

Process of surface treating laser glass

Fluorophosphate-base laser glasses

Method of optical pumping of erbium-doped laser material and apparatus therefor

Method for melting fluorophosphate glass

Coated phosphate glass

High-hydration contact lens

Optical phosphate glass in which the length of the light path is temperature independent

Process of removing platinum inclusions from laser glass

Fluoride glass

Silicophosphate laser glass

Method and apparatus for melting glass

Faraday rotation glass

Process for producing transparent glass product having refractive index gradient

HOYA GLASS WORKS LTD

Optical glass

Phosphate base laser glasses

Method for making a glass-based soft-edged aperture filters

Process of producing soft aperture filter

Reversible light sensitive glass

Reversible light-sensitive glass

Glass for Faraday rotator element

Heat absorbing sealing method for laser glass

Non-crystalline substance having an optical memory effect

Anomalous dispersion glass exhibiting the anomalous partially dispersing property in the long wave length region

Method of preventing tarnishing of polished glass articles

Sealing method for laser glass

IZUMITANI TETSURO

Method of molding optical lenses

(unassigned)

Method for fabricating preforms for molded lenses