Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8934116 | Line concentrator and information processing system using the same, assigning transmitted data to all devices in the group of information processing devices | Atsushi Umekage, Norihide Kunikawa | 2015-01-13 |
| 8269993 | Document reading apparatus and image forming apparatus including display portion having area sensor | Kazunori Soda | 2012-09-18 |
| 7978989 | Toner cartridge and image forming apparatus | Yusuke Nagano, Shigeru Watase | 2011-07-12 |
| 7610411 | Information processing device, line concentrator, network information processing system having the line concentrator, information processing program and storage medium | Atsushi Umekage, Suehiro Ueda | 2009-10-27 |
| 6000868 | Printer system with automatic ink ribbon cassette exchange function | Tadashi Watanabe, Yukio Shimizu | 1999-12-14 |
| 5863138 | Printer system with automatic ink ribbon cassette exchange function | Tadashi Watanabe | 1999-01-26 |