Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9715053 | Light guide, illuminating device and image reading apparatus | Masahiko Tanaka | 2017-07-25 |
| 9549093 | Light guiding device uses in image reading device performing light distribution with improved ratio of light quantity | Masahiko Tanaka | 2017-01-17 |
| 9325874 | Light guide, illuminating device and image reading apparatus | Masahiko Tanaka | 2016-04-26 |