Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8680175 | Inkjet ink, and ink cartridge, inkjet recording method, inkjet recording apparatus and ink record using the same | Shigeo Hatada, Keishi Taniguchi, Ichiroh Fujii, Akihiko Matsuyama, Yuuki Yokohama | 2014-03-25 |
| 8317913 | Inkjet ink, and ink cartridge, inkjet recording method, inkjet recording apparatus and ink record using the same | Shigeo Hatada, Keishi Taniguchi, Ichiroh Fujii, Akihiko Matsuyama, Yuuki Yokohama | 2012-11-27 |
| 7378458 | Method for preparing ink, ink cartridge and ink-jet recording apparatus | Hidekazu Arase, Mamoru Soga, Masaichiro Tatekawa, Tsutomu Matsuda, Masashi Itoh | 2008-05-27 |
| 7368007 | Ink-jet recording ink, image forming method, ink-jet recording apparatus and imaged article | Tsutomu Matsuda, Masashi Itoh, Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa | 2008-05-06 |
| 5691099 | Thermal developing type diazo copying material utilizing water soluble quanidine salt | Masanori Rimoto, Kazuo Matsuda, Naohito Shimota | 1997-11-25 |
| 5556733 | Thermal development diazo copying material | Masanori Rimoto | 1996-09-17 |
| 5478689 | Thermal development diazo copying material | Masanori Rimoto | 1995-12-26 |
| 5084593 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Isao Shiojima | 1992-01-28 |
| 5057154 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Isao Shiojima | 1991-10-15 |
| 5008238 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Isao Shiojima | 1991-04-16 |
| 4939117 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Isao Shiojima | 1990-07-03 |
| 4847385 | Cyanine dyes | Aimi Suzuki, Isao Shiojima | 1989-07-11 |
| 4400456 | Thermo-developable type diazo copying material | Tsutomu Matsuda | 1983-08-23 |