Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938829 | Water based ink and ink-jet recording method | Shunichi Higashiyama, Masaya Fujioka, Hideto Yamazaki, Masahito Kato | 1999-08-17 |
| 5885336 | Recording ink, ink cartridge containing the same, and ink-jet recording method based on the use of the same | Hideto Yamazaki, Masahito Kato, Masaya Fujioka, Shunichi Higashiyama | 1999-03-23 |
| 5868823 | Water-based magenta ink composition and ink-jet recording process employing the same | Hideto Yamazaki, Masaya Fujioka, Masahito Kato, Shunichi Higashiyama | 1999-02-09 |
| 5861056 | Water-based magenta INK composition and ink-jet recording process employing the same | Hideto Yamazaki, Masaya Fujioka, Masahito Kato, Shunichi Higashiyama | 1999-01-19 |
| 5847026 | Recording ink containing pigment particles and polyvinyl pyrrolidone | Shunichi Higashiyama | 1998-12-08 |
| 5810917 | Water-based recording magenta ink composition and ink-jet recording process | Hideto Yamazaki, Masaya Fujioka, Masahito Kato, Shunichi Higashiyama | 1998-09-22 |
| 5795375 | Water color ink for recording and ink-jet recording process | Hideto Yamazaki, Masaya Fujioka, Masahito Kato, Shunichi Higashiyama | 1998-08-18 |
| 5785744 | Water-based black recording ink, and ink-jet recording process making use of the same | Masaya Fujioka, Masahito Kato, Hideto Yamazaki | 1998-07-28 |