Inventor

OYAMADA HIROSHI

JP23 patents

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

OYAMADA HIROSHI

SHINETSU CHEMICAL CO

Optical fiber

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

Optical fiber

Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength

Method for the preparation of a porous silica glass preform for optical fibers

Optical fiber curvature measuring method

Optical fiber

Glass base material, optical fiber, method for manufacturing thereof, and method for determining cause of defect thereof

Method of manufacturing a glass based material with defect removal

Glass base material, optical fiber, method for manufacturing thereof, and method for determining cause of defect thereof

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

ASAHI CHEMICAL IND

Glass fiber reinforced polyamide resin composition

Black molded body and light reflective molded body and method for producing black molded body

Polyphenylene ether resin composition and molded article and method for producing polyphenylene ether resin composition

Polyamide resin molded body

OYAMADA HIROSHI

Optical fiber and method for manufacturing silica glass

Optical fiber

Optical fiber

RAKUTEN GROUP INC

Reception system, reception method, and program for saving user input time and labor

Reception system, reception method, and program

SONY GROUP CORP

Information processing apparatus, information processing method, and program

ASAHI KASEI CHEMICALS CORP

Polyamide composition

SASAKI YUKIYOSHI

Polyamide and polyamide composition