KO

Kazuhisa Ohtsubo

Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Overall (All Time): #1,258,513 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7038228 Image forming apparatus with specific document determining module and abnormality detection means Yutaka Hasegawa, Takeshi Ukai, Hideaki Yamagata, Mamoru Maeda 2006-05-02
6949757 Specific document determining apparatus including a microwave sensor Yutaka Hasegawa, Takeshi Ukai, Hideaki Yamagata, Mamoru Maeda 2005-09-27
6696696 Image forming apparatus with specific document module having a microwave sensor Yutaka Hasegawa, Takeshi Ukai, Hideaki Yamagata, Mamoru Maeda 2004-02-24
6025603 Specific document determining apparatus, image reading apparatus, specific document determining method, and a computer-readable recording medium with a program for execution of the method stored therein image reading apparatus having a specific document Yutaka Hasegawa, Takeshi Ukai, Hideaki Yamagata, Mamoru Maeda 2000-02-15