SI

Shinichiro Ishii

PE Pentax: 4 patents #33 of 191Top 20%
Overall (2002): #12,259 of 266,432Top 5%
4
Patents 2002

Issued Patents 2002

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6437922 Zoom lens system Takashi Enomoto, Hiroshi Nomura, Takayuki Ito 2002-08-20
6392820 Optical system of a composite camera Kae Shijo, Takayuki Ito 2002-05-21
6384984 Eyepiece variable focal length optics Takayuki Ito 2002-05-07
6369955 Zoom lens system Takashi Enomoto, Hiroshi Nomura, Takayuki Ito 2002-04-09