Inventor

ITO MASUMI

JP40 patents

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

ITO MASUMI

SUMITOMO ELECTRIC INDUSTRIES

Method for producing glass preform for optical fiber

Optical fiber grating and method of manufacturing the same

Low transmission loss optical fiber having a grating

Optical connector

Method for drawing glass preform for optical fiber

Method for elongating glass preform

Method of manufacturing single-mode optical fiber

Process for consolidation of porous preform for optical fiber

Process for producing thin glass film by sol-gel method

Optical waveguide and process for producing it

Optical waveguide and process for producing it

Increasing a fluorine compound flow rate during a VAD process

Method for producing glass preform for optical fiber

Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient

Method for producing glass preform for optical fiber

Quartz optical waveguide and method for producing the same

Optical switch

Quartz optical waveguide and method for producing the same

Quartz optical waveguide and method for producing the same

Method for producing rare earth element-doped glass by sol-gel process

Optical fiber sheet

Apparatus for vitrifying soot preform for optical fiber

Method for producing glass preform for optical fiber

Method for producing glass article

Single-mode optical fibers and fabrication methods thereof

Glass fine particle deposit and method for manufacturing glass preform

Optical fiber component optical coupler and method of producing thereof

Optical fiber component optical coupler and method of producing thereof

TOSHIBA KK

Drum type washing machine

Drum type washing machine with aligning structure for rotor and stator of drive motor

Drum type washing machine

Drum type washing machine

Drum type washing machine with drying function

MITSUBISHI CHEM CORP

Process for producing a phosphorus-vanadium oxide catalyst precursor, process for producing a phosphorus-vanadium oxide catalyst, and process for producing maleic anhydride by vapor phase oxidation using the catalyst

Process for producing a vanadium-phosphorus oxide catalyst precursor

Oxide catalyst and process for producing maleic anhydride by using oxide catalyst

Process for producing a vanadium-phosphorus oxide catalyst precursor

MITSUBISHI CHEM IND

Process for producing crystalline oxide of vanadium-phosphorus system

Process for producing crystalline oxide of vanadium-phosphorus system and catalyst containing the crystalline oxide

TOKYO YOGYO KK

Sliding nozzle for molten steel receiving vessel