Inventor

MASUMURA AKIRA

JP3 patents

Patents

3 patents

US7371703B2May 13, 2008

Optical glass suffering little change in refractive index by radiation of light

OHARA KK11 citations82

US7196027B2Mar 27, 2007

Optical glass suffering little change in refractive index by radiation of light

OHARA KK6 citations71

US7217672B2May 15, 2007

Optical glass suffering little change in refractive index by radiation of light

OHARA KK0 citations50