Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11974110 | Speaker diaphragm | Hiroshi Nakashima, Kunio Hiyama | 2024-04-30 |
| 10832301 | System and method for stamp ordering and thermal carving | Masayoshi Uchida | 2020-11-10 |
| 10183480 | Seal surface carving apparatus | Takayuki Mitsuya | 2019-01-22 |
| 10029396 | Seal carving apparatus and thermal carving machine | Masayoshi Uchida | 2018-07-24 |
| 9993972 | Seal carving apparatus and seal carving method | Masayoshi Uchida | 2018-06-12 |
| 9878491 | Seal carving apparatus and seal carving method | Masayoshi Uchida | 2018-01-30 |
| 9517648 | Porous stamp assembly, and manufacturing method and apparatus of the same | Masayoshi Uchida | 2016-12-13 |
| 6774579 | Electric discharge lamp and electric discharge lamp drive apparatus | — | 2004-08-10 |
| 6054813 | Neon discharging lamp lighting apparatus with improved lighting | Masaru Takeda, Shigeru Watanabe | 2000-04-25 |
| 4520889 | Guidance conductor for driverless vehicle | Junpei Kanazawa | 1985-06-04 |