HH

Haruo Hasegawa

Ricoh Company: 3 patents #4,826 of 9,818Top 50%
Overall (All Time): #1,682,188 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4469771 Electrophotographic light-sensitive member with thin overlayer Kenji Seki, Hideaki Ema, Masahide Harada, Shiro Yamane 1984-09-04
4296190 Photosensitive material for use in electrophotography with a radiation cured binder resin Hiroyoshi Taniguchi, Takao Igawa 1981-10-20
4225648 Electrophotographic light-sensitive member Kenji Seki, Hideaki Ema, Masahide Harada, Shiro Yamane 1980-09-30