Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007098 | Vectorizing method | — | 1991-04-09 |
| 4325191 | Coffee roaster | Kazuo Maruta | 1982-04-20 |
RK
Ryohei Kumagai
Ezel: 39 patents #1 of 24Top 5%
Yozan: 12 patents #10 of 43Top 25%
Advance Co.: 1 patents #10 of 23Top 45%
Overall (All Time): #51,286 of 4,157,543Top 2%
52
Patents All Time