Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153808 | Method for separating alkylnaphthalene | Masahiro Motoyuki, Koji Yamamoto, Shingo Yoshida, Yonezo Matsumoto, Hisako Nakashima +1 more | 2000-11-28 |
| 5232952 | Finely dispersed metal-carrying compounds and method for preparing the same | Masao Minobe | 1993-08-03 |
| 4999171 | Process for recovery of gallium by chelate resin | Yasuyuki Kato, Kenji Ochi | 1991-03-12 |
| 4927541 | Process for refining amino acids | Yuji Yoshida | 1990-05-22 |
| 4797264 | Recovery of metals adsorbed on chelating agents | Yasuhiko Inoue, Yoshirou Akiyoshi | 1989-01-10 |
| 4786481 | Method for eluting a metal adsorbed on a chelating agent | Yushin Kataoka, Masahiro Aoi | 1988-11-22 |
| 4605706 | Process for producing a chelate resin | Yushin Kataoka, Kenji Ochi, Masahiro Aoi | 1986-08-12 |
| 4565673 | Process for eluting indium from a chelate resin containing adsorbed indium | Yushin Kataoka, Masahiro Aoi, Kunitake Chino | 1986-01-21 |
| 4564659 | Chelate resin and process for producing the same | Yushin Kataoka, Kenji Ochi, Masahiro Aoi | 1986-01-14 |
| 4468374 | Method for recovery of gallium | Yushin Kataoka, Hiroshi Yoshitake, Yoshikazu Hirose | 1984-08-28 |
| 4442231 | Aminophosphonic acid chelate resin | Yushin Kataoka, Masaru Kamoda | 1984-04-10 |
| 4277566 | Chelate resin prepared by aftertreatment of aminated resin with polyfunctional compound and amine | Yushin Kataoka, Masaru Kamoda | 1981-07-07 |