AK

Akihiro Katayama

Canon: 6 patents #44 of 1,756Top 3%
Overall (1994): #2,217 of 165,921Top 2%
6
Patents 1994

Issued Patents 1994

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5371606 Image encoding apparatus Mitsuru Maeda, Yasuji Hirabayashi, Tadashi Yoshida 1994-12-06
5361147 Method and apparatus for encoding and decoding color images Yasuhiko Yasuda, Shigeo Kato, Hirokazu Uchio 1994-11-01
5345517 Image reduction apparatus Mitsuru Maeda, Yasuji Hirabayashi, Tadashi Yoshida 1994-09-06
5325448 Image treatment method and apparatus with error dispersion and controllable quantization Hidefumi Ohsawa, Akiko Fukuhara 1994-06-28
5309524 Image reducing apparatus Yasuji Hirabayashi, Mitsuru Maeda, Tadashi Yoshida 1994-05-03
5282256 Binary image data coding method having the function of correcting errors derived from coding Hidefumi Ohsawa 1994-01-25