NT

Naoki Tsumura

Mitsubishi Electric: 19 patents #1,108 of 25,717Top 5%
Ricoh Company: 8 patents #2,692 of 9,818Top 30%
NI Nikon: 1 patents #1,647 of 2,493Top 70%
Overall (All Time): #138,366 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5077742 Error-corrected facsimile communication control system Shigetaka Tanaka, Takeshi Ukegawa 1991-12-31
4989232 Device for processing digital signal in audio-frequency bandwidth 1991-01-29
4868852 Facsimile machine having an output level adjusting function 1989-09-19