Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214306 | Filter device | Nobuyuki Kitajima, Mitsunobu Okamoto | 2025-02-04 |
| 11541338 | Filter device | Nobuyuki Kitajima | 2023-01-03 |
| 11305215 | Filter device | Nobuyuki Kitajima | 2022-04-19 |
| 11052336 | Filter device | Nobuyuki Kitajima | 2021-07-06 |
| 9199317 | Scroll machining method and machining unit | Junichi Maeda | 2015-12-01 |
| 9150563 | Nitrogen-containing aromatic heterocyclyl compound | Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa | 2015-10-06 |
| 8648103 | Nitrogen-containing aromatic heterocyclyl compound | Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa | 2014-02-11 |
| 4805272 | Fastener with tape | — | 1989-02-21 |
| 4794673 | Cord fastener and method for manufacture thereof | — | 1989-01-03 |
| 4674207 | Baseball shoe | — | 1987-06-23 |
| 4667422 | Golf shoe spike | — | 1987-05-26 |