SI

Sunao Ishizaka

NK Nippon Kogaku K.K.: 4 patents #4 of 82Top 5%
Overall (1982): #1,581 of 81,411Top 2%
4
Patents 1982

Issued Patents 1982

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4329040 Signal transmitting device of an intermediate lens barrel of a camera Kunihiro Fukino 1982-05-11
4326788 Information transmission means in an intermediate lens tube for camera Sachio Ohmori, Kunihiro Fukino 1982-04-27
RE30915 Aperture interlocking device for a single lens reflex camera of the interchangeable viewfinder type 1982-04-27
4314752 Mount device of a focal length changing auxiliary lens Toshiaki Hozumi 1982-02-09