Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D662195 | Water heater | Hiromasa Watanabe, Yoshihiro Kubota | 2012-06-19 |
| D653321 | Water heater | Hiromasa Watanabe, Yoshihiro Kubota | 2012-01-31 |
| D574925 | Water purifier | Noboru Odamaki, Ken Gotou, Tsuyoshi Doi, Takeshi Ishikawa | 2008-08-12 |
| D570951 | Cartridge for water purifier | Noboru Odamaki, Ken Gotou, Tsuyoshi Doi, Takeshi Ishikawa | 2008-06-10 |