Inventor
CHIGUSA YOSHIKI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “CHIGUSA YOSHIKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
7 patentsUS5073179ADec 17, 1991
Method for controlling fiber diameter during optical fiber drawing process
SUMITOMO ELECTRIC INDUSTRIES35 citations92
US5253322AOct 12, 1993
Optical functioning glass and fiber amplifier
SUMITOMO ELECTRIC INDUSTRIES28 citations90
US5337401AAug 9, 1994
Optical functioning glass and method of manufacturing same, optical fiber, waveguide device, and laser device
SUMITOMO ELECTRIC INDUSTRIES10 citations73
US4553995ANov 19, 1985
Process for producing image fiber
SUMITOMO ELECTRIC INDUSTRIES7 citations71
US5597398AJan 28, 1997
Process for producing glass preform for optical fiber
SUMITOMO ELECTRIC INDUSTRIES15 citations70
US5430824AJul 4, 1995
Optical fibre, waveguide, and optical active device
SUMITOMO ELECTRIC INDUSTRIES4 citations61
US5232901AAug 3, 1993
Method of producing superconducting ceramic wire having protective metal coating thereon
SUMITOMO ELECTRIC INDUSTRIES3 citations61