Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118463 | Positional error correction for color image forming apparatus | Youji Houki, Kouichi Kobayashi, Morihisa Kawahara, Tsutomu Nagatomi, Hirofumi Nakayasu +7 more | 2000-09-12 |
| 6070041 | Printing apparatus | Hirofumi Nakayasu, Morihisa Kawahara, Tsutomu Nagatomi, Kouichi Kobayashi, Youji Houki +1 more | 2000-05-30 |
| 6049690 | Printing apparatus | Hirofumi Nakayasu, Morihisa Kawahara, Tsutomu Nagatomi, Kouichi Kobayashi, Youji Houki +1 more | 2000-04-11 |
| 5418604 | Image forming method and apparatus with automatic skew control | Masanao Nagakura, Yasunori Hamada, Nobuyuki Hayashida, Haruhisa Inagaki, Yoji Houki | 1995-05-23 |