Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010649 | IC card, portable electronic device, and reader/writer | — | 2015-04-21 |
| 8629757 | Processing system for portable electronic apparatus, portable electronic apparatus, and processing apparatus for portable electronic apparatus | Hiroo Shimizu | 2014-01-14 |
| 8321743 | Information storage medium and information storage medium processing apparatus | — | 2012-11-27 |
| 8123136 | Processing apparatus of portable electronic devices, portable electronic device, and processing system of portable electronic devices | Hiroo Shimizu | 2012-02-28 |
| 6011958 | No-battery information storage medium capable of efficiently transmitting data | Tsuneshi Yokota, Kazuki Iwata | 2000-01-04 |
| 5966404 | Reader/writer for performing efficient transmission/reception with no-battery information storage medium | Tsuneshi Yokota, Kazuki Iwata | 1999-10-12 |