YK

Yasuo Kadomatsu

Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Overall (All Time): #1,303,499 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4860417 Developer carrier Shoji Tajima, Yoshio Miyazaki, Michikazu Sakurai, Kimio Anze 1989-08-29
4707382 Developer carrier and a method for manufacturing the same Shoji Tajima, Yoshio Miyazaki, Michikazu Sakurai, Kimio Anze 1987-11-17
4587699 Elastic developer carrier Shoji Tajima, Yoshio Miyazaki, Kimio Anze, Michikazu Sakurai 1986-05-13
4514483 Method for preparation of selenium type electrophotographic element in which the substrate is superfinished by vibrating and sliding a grindstone Tadashi Matsuura 1985-04-30