Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834778 | Mixing and discharge device | Tomomi Hamada, Keiko Ishikawa, Yoshie Aoki, Yoshiyuki Kakuta, Toru Toma | 2004-12-28 |
| 6208281 | Resistance ladder together with digital-analog converter and semiconductor using the same | Akihiro Fukuzawa | 2001-03-27 |
| 4615632 | Slide type cosmetic container with compound screw | Hisao Iwamoto, Yoichi Iwamoto | 1986-10-07 |