YI

Yoshiyuki Iwamatsu

SP Seiko Precision: 3 patents #45 of 173Top 30%
SC Seikosha Co.: 3 patents #103 of 312Top 35%
Overall (All Time): #884,548 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6021280 Display system for camera Noriyuki Osato 2000-02-01
5737649 Detecting circuit and method for detecting power interruption in a camera Isamu Ishii, Shinichi Endo 1998-04-07
5610675 Apparatus for inserting date information in camera film Shinichi Endo 1997-03-11
5444511 Distance measuring device for camera Yoichi Seki, Hiroyuki Saito, Akira Ito, Isamu Ishii 1995-08-22
5255049 Shutter control device for camera and control method therefor Kazuo Akimoto, Shinji Miyata, Hiroko Fujita, Mitsuhiro Kakuta, Tomoki Nakamura 1993-10-19
4959680 Camera system Hiroaki Ishida, Ichiro Nemoto, Koji Sato, Atsushi Takami, Yoichi Nakano +1 more 1990-09-25