Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983569 | Recording material | Shigetoshi Hiraishi, Masahiro Miyauchi, Kazuo Kabashima | 1991-01-08 |
| 4927971 | Desensitizer composition | Shingo Tachizawa, Mamoru Ishiguro | 1990-05-22 |
| 4880767 | Recording material | Shigetoshi Hiraishi, Masahiro Miyauchi, Kazuo Kabashima | 1989-11-14 |
| 4874740 | Thermosensitive recording material | Shigetoshi Hiraishi, Naomasa Koike, Kazuyoshi Kondo | 1989-10-17 |
| 4772581 | Heat sensitive recording sheet | Masahiro Miyauchi | 1988-09-20 |
| 4742042 | Thermosensitive recording material | Shigetoshi Hiraishi, Naomasa Koike, Kazuyoshi Kondo | 1988-05-03 |
| 4418941 | Color-forming sheet for no-carbon copying paper | Mamoru Ishiguro, Hideo Ohye | 1983-12-06 |
| 4354697 | Process for producting p-phenylphenol resin improved in solubility and no carbon copying paper comprising the same | — | 1982-10-19 |
| 4327148 | Self-contained color forming pressure sensitive record paper of the single coating type | Kohji Toyama, Isao Nagayasu, Hirokazu Tsukahara | 1982-04-27 |
| 4291102 | Desensitizer for no-carbon copy paper | Hirokazu Tsukahara, Nobuhiro Kagota | 1981-09-22 |
| 4268634 | Desensitizer for no-carbon copy paper | Hirokazu Tsukahara, Nobuhiro Kagota | 1981-05-19 |
| 4233178 | Micro-capsules and method for their production | — | 1980-11-11 |