Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073511 | Shift changing device for torque converter | Kazunori Umezawa | 2000-06-13 |
| D320443 | Clinical chemistry analyzer | Masaru Yokoyama, Hiroyasu Uchida, Tetsuaki Abe | 1991-10-01 |
| 4937441 | Diagnosis apparatus for photo coupler and photo coupler device with diagnosis function | Hiroaki Ishizawa, Hideki Asai | 1990-06-26 |