Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8796877 | Liquid power generation apparatus and liquid power generation system | — | 2014-08-05 |
| 4978902 | Synchronous rotation control system of magnetically recording disk | Toshifumi Hatagami, Masahito Iwatsubo | 1990-12-18 |
| 4879498 | DC motor drive system for reducing start-up current | Masahito Iwatsubo | 1989-11-07 |