Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436179 | Ink-jet recording ink, ink color set, and ink-jet recording method | Eisuke Hiraoka, Yoshiro Yamashita, Hiromi Nagai, Kaoru Watanabe, Yasuharu Endo +1 more | 2002-08-20 |
| 6086191 | Method for cleaning an ink holding material | Toshiyuki Yano, Etsuo Sagara, Toshitake Yui, Ken Hashimoto, Yasuharu Endo | 2000-07-11 |
| 6048390 | Ink jet recording ink and ink jet recording method | Toshiyuki Yano, Hitoshi Kojima, Eisuke Hiraoka, Hiromi Nagai, Kaoru Watanabe +2 more | 2000-04-11 |
| 6015455 | Ink jet recording ink and ink jet recording method | Toshiyuki Yano, Hitoshi Kojima, Eisuke Hiraoka, Kaoru Watanabe, Hiromi Nagai +2 more | 2000-01-18 |
| 5980623 | Ink set for ink jet recording and ink jet recording method | Eisuke Hiraoka, Hitoshi Kojima, Kaoru Watanabe, Hiromi Nagai, Toshiyuki Yano +2 more | 1999-11-09 |
| 5605566 | Ink for ink jet recording and ink jet recording process | Toshitake Yui, Yasuharu Endo, Eisuke Hiraoka, Hitoshi Kojima, Atsushi Suzuki +1 more | 1997-02-25 |
| 5462590 | Ink-jet ink and method of printing using the same | Toshitake Yui, Yoshiro Yamashita, Fuminori Koide, Ken Hashimoto | 1995-10-31 |
| 5441561 | Ink-jet recording ink and ink-jet recording methods thereof | Toshitake Yui, Ken Hashimoto, Yoshiro Yamashita, Fuminori Koide, Yasuharu Endo +1 more | 1995-08-15 |
| 5431722 | Ink for inkjet printing | Yoshiro Yamashita, Toshitake Yui, Fuminori Koide, Ken Hashimoto | 1995-07-11 |
| 5382283 | Ink containing propylene oxide/ethylene oxide block copolymers for ink jet recording | Toshitake Yui, Ken Hashimoto, Fuminori Koide, Yoshiro Yamashita | 1995-01-17 |
| 5370731 | Ink for thermal ink jet recording | Yoshiro Yamashita, Toshitake Yui, Fuminori Koide, Ken Hashimoto | 1994-12-06 |