Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8470508 | Toner manufacturing method | Kenji Hayashi, Mikio Kouyama, Hiroaki Obata, Yasuhiko Muramatsu | 2013-06-25 |
| 8377619 | Toner and toner manufacturing method | Kenji Hayashi, Mikio Kouyama, Hiroaki Obata, Yasuhiko Muramatsu | 2013-02-19 |
| 8361688 | Toner | Mikio Kouyama, Kenji Hayashi, Hiroaki Obata, Hiroshi Nagasawa, Yasuhiko Muramatsu | 2013-01-29 |
| 8206882 | Toner | Mikio Koyama, Kenji Hayashi, Hiroaki Obata, Hiroshi Nagasawa, Yasuhiko Muramatsu | 2012-06-26 |