Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9017911 | Electrophotographic toner | Mikio Kouyama, Kenji Hayashi, Hiroaki Obata, Noriyuki Kimpara, Hiroshi Nagasawa | 2015-04-28 |
| 8470508 | Toner manufacturing method | Kenji Hayashi, Mikio Kouyama, Hiroaki Obata, Noriyuki KINPARA | 2013-06-25 |
| 8377619 | Toner and toner manufacturing method | Kenji Hayashi, Mikio Kouyama, Hiroaki Obata, Noriyuki KINPARA | 2013-02-19 |
| 8361688 | Toner | Mikio Kouyama, Kenji Hayashi, Hiroaki Obata, Noriyuki KINPARA, Hiroshi Nagasawa | 2013-01-29 |
| 8206882 | Toner | Mikio Koyama, Kenji Hayashi, Hiroaki Obata, Noriyuki KINPARA, Hiroshi Nagasawa | 2012-06-26 |
| 7030899 | Image-forming apparatus having function of preventing unevenness of image formed on recording medium | Yoshihide Hoshino, Masato Doi, Mitsuharu Kitamura | 2006-04-18 |
| 5766821 | Black-and-white silver halide photographic light-sensitive material | Takeshi Sampei | 1998-06-16 |
| 5244773 | Silver halide photographic light sensitive material | Takeshi Sampei | 1993-09-14 |