Inventor
NAGANUMA KAZUHIRO
JP5 patents
Patents
5 patentsUS5860914AJan 19, 1999
Bendable portion of endoscope
ASAHI OPTICAL CO LTD185 citations98
US5577992ANov 26, 1996
Bendable portion of endoscope
ASAHI OPTICAL CO LTD192 citations98
US5158756AOct 27, 1992
Porous particles of calcium phosphate compound and production process thereof
ASAHI OPTICAL CO LTD57 citations94
US5388003AFeb 7, 1995
Projection lens system
ASAHI OPTICAL CO LTD20 citations91
US5144485ASep 1, 1992
Lens having a surface treating composition for reflection preventing film
ASAHI OPTICAL CO LTD1 citations43