YD

Yoshikazu Doi

FC Fuji Photo Optical Co.: 9 patents #60 of 509Top 15%
Overall (All Time): #593,246 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
4598980 Objective optical system for endoscope Hitoshi Miyano, Toshiro Kishikawa, Yasumasa Sunaga 1986-07-08
4589723 Holographic endoscope Masane Suzuki, Yasumasa Sunaga 1986-05-20
4560254 Zoom lens system Kenzo Sado 1985-12-24
4484799 Wide angle zoom lens Yutaka Sakai, Kazunori Ohno 1984-11-27
4472740 Television camera system 1984-09-18
4298252 Rear stop type lens system Takaaki Uchida, Yutaka Sakai 1981-11-03
4294521 Rear stop type zoom lens Yutaka Sakai, Kazunori Ohno 1981-10-13
4245891 Zoom lens system with a movable distortion-correcting element Kenzo Sado 1981-01-20
4195912 Zoom lens system Yutaka Sakai, Kazunori Ohono 1980-04-01