Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12302983 | Sole for a shoe | Yo KAJIWARA | 2025-05-20 |
| 4795779 | Process for producing inorganic compound-containing urea resin | Katsuhiko Kurihara, Kenji Takeuchi, Mitsuaki Abe | 1989-01-03 |
| 4725169 | Grout impregnation method | Kenji Takeuchi, Akiyoshi Horiba, Mitsuji Ishida, Syouichi Kashima, Mineo Murata | 1988-02-16 |
| 4596593 | Urea-formaldehyde condensate-based slow release nitrogen fertilizer and process for producing same | Katsuhiko Kurihara, Yuzuru Kawagoe, Seinosuke Ando, Kazuhiko Kon | 1986-06-24 |