Umeda; Kenkichi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Umeda; Kenkichi.The latest application filed is for "brush-less dc motor".
- Umeda; Kenkichi - Tokyo JP
| Patent | Date |
|---|---|
| Brush-less DC motor Grant 4,167,692 - Sekiya , et al. September 11, 1 | 1979-09-11 |
| Cassette and card recording and/or reproducing apparatus Grant 4,139,875 - Tatara , et al. February 13, 1 | 1979-02-13 |
| Tape speed switching multiple track tape recorder Grant 4,079,426 - Umeda , et al. March 14, 1 | 1978-03-14 |
| Signal handling system for minimizing dropout effect Grant 4,041,453 - Umeda , et al. August 9, 1 | 1977-08-09 |
| Tape sensing device for magnetic tape recording and/or reproducing apparatus Grant 4,038,692 - Umeda , et al. July 26, 1 | 1977-07-26 |
| Tape cassette and machine Grant 4,005,480 - Matsumoto , et al. January 25, 1 | 1977-01-25 |
| Tape cassette with erasure prevention recesses at rear corners Grant 3,940,799 - Matsumoto , et al. February 24, 1 | 1976-02-24 |
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