Izumi Umemura

NK Nippon Kogaku K.K.: 1 patents #37 of 82Top 50%

Overall (1982): #57,099 of 81,411Top 75%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4353625	Eye-refractometer device	Masao Nohda	1982-10-12