Inventor

OTOSAKA TETSUYA

JP34 patents

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

OTOSAKA TETSUYA

SHINETSU CHEMICAL CO

Optical fiber preform, method for manufacturing thereof, and optical fiber obtained by drawing thereof

Fabrication method and fabrication apparatus for porous glass base material for optical fiber

Flange fixing structure

Apparatus for sintering a glass preform for an optical fiber and sintering method thereof

Wire-drawing optical fiber base material manufacturing method and manufacturing apparatus

Wire-drawing optical fiber base material manufacturing method and manufacturing apparatus

Fabrication method and fabrication apparatus for porous glass base material for optical fiber

Measurement method of non-circularity of core optical fiber base material and apparatus therefor

Apparatus for fabricating soot preform for optical fiber

Method of sintering optical fiber porous glass base material

Method of forming conical shape on glass rod, and glass rod

Glass base material elongating method and glass base material elongating apparatus

Sintering apparatus and method for sintering

Glass base material elongating method and glass base material elongating apparatus

Glass base material elongating apparatus

Manufacturing apparatus of porous glass base material

Gripping mechanism

Heating furnace

Burner for synthesization

Porous glass base material sintering method and sintering apparatus

Glass rod machining method and machining apparatus

Glass base material hanging mechanism

Glass base material elongating method and glass base material elongating apparatus

Glass base material elongation method

Method for measuring non-circularity at core portion of optical fiber parent material

Soot deposition body manufacturing apparatus and manufacturing method

OTOSAKA TETSUYA

Apparatus for fabricating an optical fiber

Seal member

Apparatus for fabricating a glass rod and method of same

Glass lathe

Elongating method and apparatus for glass base material

Apparatus for fabricating a glass rod and method of same

Method of manufacturing optical fiber base material

Method of manufacturing optical fiber preform using plasma torch