Issued Patents All Time
Showing 76–79 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6719394 | SEMICONDUCTOR DEVICE, INK TANK PROVIDED WITH SUCH SEMICONDUCTOR DEVICE, INK JET CARTRIDGE, INK JET RECORDING APPARATUS, METHOD FOR MANUFACTURING SUCH SEMICONDUCTOR DEVICE, AND COMMUNICATION SYSTEM, METHOD FOR CONTROLLING PRESSURE, MEMORY ELEMENT, SECURITY SYSTEM OF INK JET RECORDING APPARATUS | Masahiko Kubota, Sadayuki Sugama, Ichiro Saito, Hiroyuki Ishinaga, Yoshiyuki Imanaka +4 more | 2004-04-13 |
| 6685296 | Ink tank and ink jet recording apparatus provided with the same | Muga Mochizuki, Ichiro Saito, Hiroyuki Ishinaga, Yoshiyuki Imanaka, Masahiko Kubota +1 more | 2004-02-03 |
| 4357256 | Sodium hydrosulfite composition | — | 1982-11-02 |
| 4199472 | Oxygen absorbent composition | Sadao Ohtsuka | 1980-04-22 |