Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7546072 | Toner layer thickness regulation member and image forming apparatus having same | — | 2009-06-09 |
| 5210301 | Squarium compounds, process for preparing the same and electrophotographic photoreceptors containing the same | Seki Kin, Kaoru Torikoshi, Hiroyuki Tanaka, Lyong-Sun Pu | 1993-05-11 |
| 5055615 | Novel Squarium compounds, a process for preparing them and electrophotographic photoreceptors containing them | Seki Kin, Hiroyuki Tanaka, Kaoru Torikoshi, Lyong-Sun Pu | 1991-10-08 |
| 4626485 | Substituted squarium compounds, process for preparing the same and electrophotographic photoreceptors containing the same | Seki Kin, Hiroyuki Tanaka, Kaoru Torikoshi, Lyong-Sun Pu | 1986-12-02 |