Inventor
FUKUMI KOHEI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “FUKUMI KOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGENCY IND SCIENCE TECHN
3 patentsUS5763340AJun 9, 1998
Method for production of SiO2 glass material having regions changed in light refractive index and SiO2 glass material produced by the method
AGENCY IND SCIENCE TECHN13 citations72
US5261938ANov 16, 1993
Process for producing rod glass having refractive index distribution
AGENCY IND SCIENCE TECHN6 citations71
US5392375AFeb 21, 1995
Glass having refractive index distribution
AGENCY IND SCIENCE TECHN2 citations60