Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D740916 | Water purifier | Tsuyoshi Doi, Takeshi Ishikawa, Hatsumi Takeda | 2015-10-13 |
| D739494 | Main body for water purifier | Tsuyoshi Doi, Takeshi Ishikawa, Hatsumi Takeda | 2015-09-22 |