Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827411 | Solid semiconductor element, ink tank, ink jet recording apparatus provided with ink tank, liquid information acquiring method and liquid physical property change discriminating method | Masahiko Kubota, Sadayuki Sugama, Ichiro Saito, Hiroyuki Ishinaga, Yoshiyuki Imanaka +3 more | 2004-12-07 |
| 6786572 | Liquid discharge head and liquid discharge apparatus | Yoshiyuki Imanaka, Hiroyuki Ishinaga, Akihiro Yamanaka, Masahiko Kubota | 2004-09-07 |
| 6773099 | Liquid container, liquid supplying apparatus, and recording apparatus | Hiroyuki Ishinaga, Nobuyuki Kuwabara, Tetsuya Ohashi, Hideki Ogura | 2004-08-10 |
| 6769754 | Ink jet recording apparatus utilizing solid semiconductor element | Yoshiyuki Imanaka, Ichiro Saito, Hiroyuki Ishinaga, Masahiko Kubota, Muga Mochizuki +1 more | 2004-08-03 |
| 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 |