YANAGAWA; Hirofumi
Patent Applications and Registrations
Patent applications and USPTO patent grants for YANAGAWA; Hirofumi.The latest application filed is for "sound field adjustment filter, sound field adjustment apparatus and sound field adjustment method".
- YANAGAWA; Hirofumi - Chiba JP
- Yanagawa; Hirofumi - Narashino-shi JP
- Yanagawa; Hirofumi - Tsurugashima JP
- Yanagawa; Hirofumi - Tokyo JP
- Yanagawa; Hirofumi - Saitama-ken JP
- Yanagawa; Hirofumi - Kawasaki JP
- Yanagawa; Hirofumi - Saitama JP
| Patent | Date |
|---|---|
| Sound Field Adjustment Filter, Sound Field Adjustment Apparatus And Sound Field Adjustment Method App 20150319549 - YANAGAWA; Hirofumi | 2015-11-05 |
| Sound Signal Processing Device, Method of Processing Sound Signal, Sound Reproducing System, Method of Designing Sound Signal Processing Device App 20090161879 - Yanagawa; Hirofumi | 2009-06-25 |
| Method and apparatus for erasing acoustic echo Grant 5,987,143 - Okuno , et al. November 16, 1 | 1999-11-16 |
| Line source speaker system Grant 5,953,432 - Yanagawa , et al. September 14, 1 | 1999-09-14 |
| Sound field control system for a multi-speaker system Grant 5,604,810 - Yanagawa February 18, 1 | 1997-02-18 |
| Sound field control system Grant 5,604,809 - Tsubonuma , et al. February 18, 1 | 1997-02-18 |
| Rectangular nickel-metal hydride secondary cell Grant 5,372,897 - Kozawa , et al. December 13, 1 | 1994-12-13 |
| Speaker system and method of controlling directivity thereof Grant 5,233,664 - Yanagawa , et al. August 3, 1 | 1993-08-03 |
| Sound field correcting apparatus Grant 5,128,999 - Yanagawa July 7, 1 | 1992-07-07 |
| Stereo sound system Grant 4,509,184 - Yanagawa April 2, 1 | 1985-04-02 |
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