YW

Yoichiro Watanabe

Ricoh Company: 2 patents #69 of 604Top 15%
Overall (1994): #15,398 of 165,921Top 10%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5368972 Method of preparing composite particles comprising adhering wax particles to the surface of resin particles Hiroshi Yamashita, Akihiro Kotsugai, Koichi Katoh, Hiromitsu Kawase 1994-11-29
5288577 Dry-type developer Kimitoshi Yamaguchi 1994-02-22