Nakatsu; Keiji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nakatsu; Keiji.The latest application filed is for "electric train car controlling device".
- Nakatsu; Keiji - Tokyo JP
- Nakatsu; Keiji - Amagasaki JP
| Patent | Date |
|---|---|
| Controlling device for railway electric car Grant 8,285,430 - Yabuuchi , et al. October 9, 2 | 2012-10-09 |
| Electric train car controlling device Grant 8,280,568 - Nakatsu , et al. October 2, 2 | 2012-10-02 |
| Electric Train Car Controlling Device App 20100305787 - Nakatsu; Keiji ; et al. | 2010-12-02 |
| Controlling Device For Railway Electric Car App 20100179713 - Yabuuchi; Masataka ; et al. | 2010-07-15 |
| Laser power measuring jig for optical disk unit Grant 5,264,911 - Nakane , et al. November 23, 1 | 1993-11-23 |
| Optical disk drive apparatus having counter disable at seek start-up Grant 4,955,009 - Nakatsu , et al. September 4, 1 | 1990-09-04 |
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