Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392352 | Vacuum exhaust apparatus and vacuum pump used therein | Yoshinobu Ohtachi, Yasushi Maejima | 2025-08-19 |
| 12379054 | Vacuum pump and connection port used in vacuum pump | Yongwei Shi | 2025-08-05 |
| 12158152 | Vacuum pump and stator component of thread groove pump portion of the vacuum pump | Yoshinobu Ohtachi, Yasushi Maejima, Toshiki Yamaguchi | 2024-12-03 |
| 12044251 | Vacuum pump | Hideki Enosawa, Manabu Nonaka, Yasushi Maejima | 2024-07-23 |
| 11946482 | Vacuum pump, rotor, and washer | Katsuhisa Yokozuka, Yoshinobu Ohtachi, Yasushi Maejima | 2024-04-02 |
| 11889595 | Vacuum pump and heating device therefor | Yoshinobu Ohtachi, Yasushi Maejima | 2024-01-30 |
| 11480182 | Vacuum pump, cylindrical portion used in vacuum pump, and base portion | Yoshinobu Ohtachi, Yasushi Maejima | 2022-10-25 |
| 11466692 | Adaptor and vacuum pump | Yoshinobu Ohtachi, Yasushi Maejima | 2022-10-11 |
| 11384770 | Vacuum pump, and control device of vacuum pump | Hideo Fukami, Yoshinobu Ohtachi, Yasushi Maejima | 2022-07-12 |
| 10704555 | Stator-side member and vacuum pump | Yoshiyuki Sakaguchi, Akihiro Ito, Yoshinobu Ohtachi, Yasushi Maejima | 2020-07-07 |
| 10578158 | Vacuum pump and abnormality cause estimating method for vacuum pump | Yoshinobu Ohtachi, Yasushi Maejima, Manabu Nonaka | 2020-03-03 |
| 10480523 | Vacuum pump | Yoshinobu Ohtachi, Yasushi Maejima | 2019-11-19 |
| 10364814 | Vacuum pump | Yongwei Shi, Manabu Nonaka, Yoshinobu Ohtachi, Yasushi Maejima | 2019-07-30 |
| 10001126 | Vacuum pump | Tooru Miwata, Keiichi Ishii, Katsuhide Machida, Yoshinobu Ohtachi, Yasushi Maejima | 2018-06-19 |
| 9982682 | Rotor and vacuum pump equipped with same | Yoshinobu Ohtachi, Yasushi Maejima, Yoshiyuki Sakaguchi, Yoshiyuki Takai | 2018-05-29 |
| 9790946 | Exhaust pump | Yoshinobu Ohtachi, Yasushi Maejima | 2017-10-17 |
| 8366380 | Turbo-molecular pump and method of assembling turbo-molecular pump | Yoshiyuki Sakaguchi | 2013-02-05 |