Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5561502 | Image forming apparatus | Takashi Shibuya | 1996-10-01 |
| 4517096 | Method of selective separation and concentration of gallium and/or indium from solutions containing low levels of them and high levels of other metal ions | Kunio Sekine, Hitoshi Masuda, Kodo Ishibashi, Shozo Tomoshige, Kozo Kondo | 1985-05-14 |
| 4323458 | Process for removing heavy-metal ions from aqueous solution | Hiroyuki Uejima, Tsutomu Sakaida | 1982-04-06 |
| 4266045 | Etherified phenolic chelate resin, process for its production, and method for adsorption treatment | Hiroyuki Uejima, Tsutomu Sakaida | 1981-05-05 |
| 4250031 | Phenolic chelate resin and method of adsorption treatment | Hiroyuki Uejima, Masahiro Kazigase | 1981-02-10 |
| 4197391 | Phenolic chelate resin and method of adsorption treatment | Hiroyuki Uejima, Masahiro Kazigase | 1980-04-08 |