Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264199 | Process for producing carbon black | Akinori Sakaue, Shushichi Yoshimura, Shinichi Kanamaru | 1993-11-23 |
| 4631180 | Process for producing carbon black | Syushichi Yoshimura, Hiromu Kobayashi, Yoshikazu Toyonaga, Hozo Yamazaki | 1986-12-23 |