HI

Hisao Ishizu

Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Overall (All Time): #1,300,786 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4891678 Electrostatic recording apparatus having a cooled and insulated waste toner container Tomobumi Shibano, Yasuhiro Sagawa, Hiroshi Komai 1990-01-02
4875063 Electrostatic recording apparatus Hiroyuki Idenawa, Hideaki Mochimaru, Hajime Kanda, Nobuhiro Makita, Yoshiaki Tanaka +12 more 1989-10-17
4750020 Sheet feeding apparatus Yukitoshi Kiya 1988-06-07
4629309 Developer supply system for dry process electrophotographic recording apparatus Moriyoshi Tsukano 1986-12-16