KN

Kazuhiro Naganuma

PE Pentax: 4 patents #304 of 761Top 40%
AK Asahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
Overall (All Time): #1,049,897 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5860914 Bendable portion of endoscope Toru Chiba, Rensuke Adachi, Tetsuya Utsui 1999-01-19
5577992 Bendable portion of endoscope Toru Chiba, Rensuke Adachi, Tetsuya Utsui 1996-11-26
5388003 Projection lens system Yasunori Arai 1995-02-07
5158756 Porous particles of calcium phosphate compound and production process thereof Tetsuro Ogawa, Akihiko Yokoo, Satoshi Fujinuma, Katsumi Kawamura 1992-10-27
5144485 Lens having a surface treating composition for reflection preventing film Shinji Ninomiya 1992-09-01