YT

Yasuhiro Tabata

Ricoh Company: 28 patents #700 of 9,818Top 8%
RI Ricon: 1 patents #20 of 48Top 45%
ZG Zexel Gmbh: 1 patents #175 of 348Top 55%
Overall (All Time): #125,476 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
4272180 Electrostatic copying machine Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura, Tamaki Kaneko 1981-06-09
4231561 Auto document feeder for use with duplex copying machine Tamaki Kaneko, Seiichi Miyakawa, Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura 1980-11-04
4218128 Duplex copying machine Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura, Tamaki Kaneko 1980-08-19
4218130 Method for controlling a copying apparatus adapted to print images on opposite surfaces of a copy sheet Toyokazu Satomi, Yutaka Koizumi, Seiichi Miyakawa, Isao Nakamura, Tamaki Kaneko 1980-08-19
4187024 Electrostatic copying machine Toyokazu Satomi, Yutaka Koizumi, Isao Nakamura, Tamaki Kaneko 1980-02-05