Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8136174 | Urinal | Tairo Ito, Masakazu Takahashi, Takashi Tenma | 2012-03-20 |
| 4995311 | Device for making liquid coffee | Masaru Naya, Susumu Ishikawa | 1991-02-26 |
| 4725714 | Drip-type hot water feeder | Masaru Naya, Shinichi Takahashi | 1988-02-16 |