TO

Tadahisa Ohkura

PE Pentax: 7 patents #230 of 761Top 35%
PE Pentax: 7 patents #66 of 396Top 20%
HO Hoya: 3 patents #406 of 1,290Top 35%
RC Ricoh Imaging Company: 1 patents #35 of 67Top 55%
Overall (All Time): #255,458 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10341577 Imaging apparatus 2019-07-02
8072508 Photographing apparatus having first and second operation devices Isamu Hirai 2011-12-06
7961250 Photographing apparatus having an exposure mode selection function Isamu Hirai, Toshihiro Hamamura 2011-06-14
7512332 Camera with superimpose indication function Shigeru Iwamoto, Masahiro Nakata 2009-03-31
7313323 Camera system with a photometering device and an external operating device Yutaka Ohsawa, Shigeru Iwamoto, Hiroyuki Takahashi 2007-12-25
7035536 Flash control mechanism Yutaka Ohsawa, Shigeru Iwamoto, Takuya Hasegawa 2006-04-25
6826364 Zoom flash and flash photography system Masahiro Kawasaki, Osamu Sato, Shigeru Iwamoto, Kazuhito Taneoka 2004-11-30
6718135 Flash photography system Masahiro Kawasaki, Osamu Sato, Shigeru Iwamoto, Kazuhito Taneoka 2004-04-06
6571061 Uniform flash-emission controller Masahiro Kawasaki, Osamu Sato, Shigeru Iwamoto, Kazuhito Taneoka 2003-05-27
6512890 Multi-flash photography system Masahiro Kawasaki, Osamu Sato, Shigeru Iwamoto, Kazuhito Taneoka 2003-01-28
6498901 Flash photography system Masahiro Kawasaki, Osamu Sato, Shigeru Iwamoto, Kazuhito Taneoka 2002-12-24
6427051 Controller for controlling a camera having a built-in flash Tetsuo Hosokawa, Toshihiro Hamamura, Shigeru Iwamoto, Hidefumi Kaneko 2002-07-30
6343189 Controller for controlling a built-in flash of a camera Tetsuo Hosokawa, Toshihiro Hamamura, Hiroyuki Takahashi, Hidefumi Kaneko 2002-01-29
6341202 Operation dial with an illuminator for a camera Tetsuo Hosokawa, Toshihiro Hamamura, Hiroyuki Takahashi, Shigeru Iwamoto, Hidefumi Kaneko 2002-01-22
6229602 Photometering apparatus Isamu Hirai 2001-05-08
6222622 Photometering apparatus for a camera Isamu Hirai 2001-04-24
6122451 Setting apparatus for camera Yutaka Ohsawa 2000-09-19
6014525 Photometric device Isamu Hirai 2000-01-11