Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8535867 | Ferrite core material and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier | Tomoyuki Suwa, Toru Iwata | 2013-09-17 |
| 8465898 | Ferrite carrier core material and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier | Toru Iwata | 2013-06-18 |
| 8039190 | Carrier core material for electrophotographic developer, carrier, and electrophotographic developer using the carrier | Yasunori Tabira, Tomoyuki Suwa | 2011-10-18 |
| 7914715 | Granulating method, granulated particle(s) and granulating device | Hiromichi Kobayashi | 2011-03-29 |
| 7879522 | Carrier core material for electrophotographic developer, carrier and electrophotographic developer using the carrier | Issei Shinmura, Tetsuya Igarashi | 2011-02-01 |
| 7880483 | Method for inspecting quality of core material for electrophotographic ferrite carrier | Hiromichi Kobayashi | 2011-02-01 |
| 7862975 | Carrier core material for an electrophotographic developer, carrier, and electrophotographic developer using the carrier | Yasunori Tabira, Tomoyuki Suwa | 2011-01-04 |
| 7288241 | Black composite oxide particle and method for production thereof | Hiroyuki Shimamura | 2007-10-30 |