Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9850441 | Method for blending coals, and method for producing coke | Kiyoshi Fukada, Hiroyuki Sumi, Izumi Shimoyama, Takashi Anyashiki, Tetsuya Yamamoto +1 more | 2017-12-26 |
| 9845439 | Method for blending coals for cokemaking and method for producing coke | Izumi Shimoyama, Takashi Anyashiki, Kiyoshi Fukada, Tetsuya Yamamoto, Hiroyuki Sumi | 2017-12-19 |
| 9847622 | Spark plug for an internal combustion engine | Ryohei Akiyoshi | 2017-12-19 |