Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8180255 | Rotation member unit and image forming apparatus | — | 2012-05-15 |
| 6833228 | Toner and an image formation method | Yasushige Nakamura, Seijiro Ishimaru, Yoshimichi Katagiri | 2004-12-21 |
| 6727030 | Toner and an image formation method | Yasushige Nakamura, Seijiro Ishimaru, Yoshimichi Katagiri | 2004-04-27 |
| 6660213 | Nozzle plate manufacturing method | Kouichi Sanpei, Masayuki Sasaki, Hiromitsu Soneda | 2003-12-09 |
| 6508544 | Ink-jet head and printer using the same | Masayuki Sasaki, Hiromitsu Soneda, Koichi Sanpei, Takumi Kawamura | 2003-01-21 |
| 6450623 | Inkjet head which arranges protective layer at surface to which nozzle plate is connected and method for manufacturing the inkjet head | Masayuki Sasaki, Kouichi Sanpei, Mitsuhiro Soneda | 2002-09-17 |
| 6382780 | Inkjet head formed of divided pressure-chamber plate, method for manufacturing the same, and recording device having the inkjet head | Masayuki Sasaki, Kouichi Sanpei, Hiromitsu Soneda, Akihiko Miyaki, Akira Iwaishi +3 more | 2002-05-07 |
| 6328434 | Inkjet head, its manufacturing method and recording device | Hiromitsu Soneda, Masayuki Sasaki, Kouichi Sanpei | 2001-12-11 |
| 6053601 | Ink jet printer | Kouichi Sanpei, Hiromitsu Soneda | 2000-04-25 |
| 4977429 | Apparatus for supplying toner to an image forming apparatus | Tatsuo Tani | 1990-12-11 |
| 4967234 | Image forming apparatus | Tatsuo Tani, Shigeru Muramatsu | 1990-10-30 |
| 4785328 | Electrophotographic copying machine | Yoshiyuki Tanimoto, Takashi Murofushi | 1988-11-15 |
| 4200388 | Toner density sensor for electrostatic copying machine | Mitsuo Hasebe, Kunio Hibi, Masayosi Watanuki | 1980-04-29 |