Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9693750 | Evaluation aid and evaluation device | Koichi Chida, Goro Yokouchi | 2017-07-04 |
| 9662087 | Evaluation aid | Koichi Chida, Goro Yokouchi | 2017-05-30 |
| 9521989 | Evaluation aid and evaluation device | Koichi Chida, Goro Yokouchi | 2016-12-20 |
| 9392991 | Evaluation aid and evaluation device | Koichi Chida, Goro Yokouchi | 2016-07-19 |
| 9332957 | Evaluation aid | Koichi Chida, Goro Yokouchi | 2016-05-10 |
| 8981283 | Evaluation aid | Koichi Chida, Goro Yokouchi | 2015-03-17 |