Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436179 | Ink-jet recording ink, ink color set, and ink-jet recording method | Eisuke Hiraoka, Yoshiro Yamashita, Akihiko Chujo, Hiromi Nagai, Kaoru Watanabe +1 more | 2002-08-20 |
| 6086191 | Method for cleaning an ink holding material | Toshiyuki Yano, Etsuo Sagara, Toshitake Yui, Akihiko Chujo, Ken Hashimoto | 2000-07-11 |
| 6048390 | Ink jet recording ink and ink jet recording method | Toshiyuki Yano, Hitoshi Kojima, Eisuke Hiraoka, Akihiko Chujo, Hiromi Nagai +2 more | 2000-04-11 |
| 6015455 | Ink jet recording ink and ink jet recording method | Toshiyuki Yano, Hitoshi Kojima, Eisuke Hiraoka, Akihiko Chujo, Kaoru Watanabe +2 more | 2000-01-18 |
| 5980623 | Ink set for ink jet recording and ink jet recording method | Eisuke Hiraoka, Hitoshi Kojima, Akihiko Chujo, Kaoru Watanabe, Hiromi Nagai +2 more | 1999-11-09 |
| 5622549 | Ink for ink jet recording and ink jet recording process | Toshitake Yui, Eisuke Hiraoka, Yoshiro Yamashita, Ken Hashimoto | 1997-04-22 |
| 5605566 | Ink for ink jet recording and ink jet recording process | Toshitake Yui, Akihiko Chujo, Eisuke Hiraoka, Hitoshi Kojima, Atsushi Suzuki +1 more | 1997-02-25 |
| 5529617 | Ink for ink jet recording method and ink jet recording using same | Yoshiro Yamashita, Toshitake Yui, Eisuke Hiraoka, Ken Hashimoto | 1996-06-25 |
| 5501726 | Ink for thermal ink jet recording and thermal ink jet recording method using the same | Toshitake Yui, Yoshiro Yamashita, Eisuke Hiraoka, Ken Hashimoto | 1996-03-26 |
| 5441561 | Ink-jet recording ink and ink-jet recording methods thereof | Akihiko Chujo, Toshitake Yui, Ken Hashimoto, Yoshiro Yamashita, Fuminori Koide +1 more | 1995-08-15 |