Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11617764 | Peritoneal dialysis fluid | Hirokazu Usami, Yoshihiko Koyama, Tsuyoshi Ariizumi | 2023-04-04 |
| 11020420 | Biocompatible peritoneal dialysate | Hidetomo Nakamoto, Hirokazu OKADA, Shinji Oomori, Yuri Jinnouchi | 2021-06-01 |
| 11020520 | Peritoneal dialysis fluid | Hirokazu Usami, Yoshihiko Koyama, Tsuyoshi Ariizumi | 2021-06-01 |
| 10010563 | Peritoneal dialysis fluid | Hirokazu Usami, Yoshihiko Koyama, Tsuyoshi Ariizumi | 2018-07-03 |
| 5635587 | Process for manufacturing polyarylene sulfide | Yoshinari Koyama, Norio Ogata | 1997-06-03 |
| 4608150 | Pitch material for carbonaceous body and a method for the preparation thereof | Masaaki Itoi, Masakatsu Ohta, Taizo Sugioka, Kunio Yoshihara | 1986-08-26 |