Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663084 | Rotating pumping apparatus with seal mechanism | Junichi Maeda, Yoshitake Hisada, Toshiya Hayashi | 2017-05-30 |
| 6463646 | Method of calking cylindrical member in hole | Yasuhiko Yamazaki, Akinori Nakayama, Minoru Watanabe, Toshiharu Mizuno, Hidenobu Kajita | 2002-10-15 |