Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887131 | Developing apparatus using magnetic particles and toner particles | Masahide Kinoshita, Hatsuo Tajima, Norihisa Hoshika, Atsushi Hosoi | 1989-12-12 |
| 4876574 | Developing apparatus | Hatsuo Tajima, Takahiro Kubo | 1989-10-24 |
| 4873551 | Developing apparatus using magnetic carrier under AC field | Hatsuo Tajima, Atsushi Hosoi, Norihisa Hoshika, Masahide Kinoshita | 1989-10-10 |
| 4854493 | Method and apparatus for cutting welding steel strips | Mamoru Fujii, Kazuo Noda, Shoji Nagasaka, Koji Ono | 1989-08-08 |
| 4840303 | Method and apparatus for cutting and welding steel strips | Mamoru Fujii, Kazuo Noda, Shoji Nagasaka, Koji Ono | 1989-06-20 |