Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D420788 | Shoe insole | — | 2000-02-22 |
| 5707541 | Preparation of ferrite from used dry cells | Takashi Kanemaru, Takaaki Iwasaki, Shigeaki Suda | 1998-01-13 |
| 5498360 | Process for recycling used-up dry cells, and ferrite production process | Takashi Kanemaru, Takaaki Iwasaki, Toshio Saito, Shigeaki Suda | 1996-03-12 |