Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473720 | Photosensitive inkjet ink | Ryozo Akiyama, Toru Ushirogouchi, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami | 2009-01-06 |
| 7439281 | Pigment dispersion, precursor of ink for UV-curing type ink-jet recording, method of ink-jet recording, printed matter, and method of manufacturing pigment dispersion | Toru Ushirogouchi, Ryozo Akiyama, Masashi Hiroki, Mitsuru Ishibashi | 2008-10-21 |
| 7425525 | Washing solution for inkjet printer head and washing method using the solution | Ryozo Akiyama, Toru Ushirogouchi, Mitsuru Ishibashi, Masashi Hiroki | 2008-09-16 |
| 7417074 | Ink for ink jet and ink jet recording apparatus | Masashi Hiroki, Yoshito Endo, Toru Ushirogouchi, Ryozo Akiyama | 2008-08-26 |
| 7404852 | Inkjet ink, inkjet recording method, method of evaluating inkjet ink, and method of manufacturing inkjet ink | Mitsuru Ishibashi, Toru Ushirogochi, Ryozo Akiyama, Masashi Hiroki | 2008-07-29 |
| 7387380 | Liquid ink and recording apparatus | Toru Ushirogouchi, Chiaki Tanuma, Ryozo Akiyama, Masashi Hiroki, Yoshito Endo | 2008-06-17 |
| 7375145 | Inkjet ink | Ryozo Akiyama, Toru Ushirogouchi, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami | 2008-05-20 |
| 7285581 | Processed pigments, pigment-dispersed solution, ink for ink jet, manufacturing method of processed pigments and manufacturing method of pigment-dispersed solution | Ryozo Akiyama, Toru Ushirogouchi | 2007-10-23 |
| 7125112 | Liquid ink and recording apparatus | Toru Ushirogouchi, Chiaki Tanuma, Ryozo Akiyama, Masashi Hiroki, Yoshito Endo | 2006-10-24 |
| 7108367 | Liquid ink and recording apparatus | Toru Ushirogouchi, Chiaki Tanuma, Ryozo Akiyama, Masashi Hiroki, Yoshito Endo | 2006-09-19 |
| 6959986 | Liquid ink and recording apparatus | Toru Ushirogouchi, Chiaki Tanuma, Ryozo Akiyama, Masashi Hiroki, Yoshito Endo | 2005-11-01 |
| 6312081 | Ink jet recording method | — | 2001-11-06 |