Kitagawa; Norimasa
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kitagawa; Norimasa.The latest application filed is for "diffuser".
- Kitagawa; Norimasa - Osaka JP
- Kitagawa; Norimasa - Neyagawa JP
- Kitagawa; Norimasa - Neyagawa-shi JP
| Patent | Date |
|---|---|
| Diffuser Grant 11,277,684 - Kitagawa , et al. March 15, 2 | 2022-03-15 |
| Diffuser App 20200236462 - KITAGAWA; Norimasa ; et al. | 2020-07-23 |
| Signal Processing Device, Signal Processing Method, And Speaker Device App 20190132677 - KUROSAKI; Hiroki ; et al. | 2019-05-02 |
| Audio amplifier and audio power amplifier Grant 10,243,516 - Kawaguchi , et al. | 2019-03-26 |
| Signal processing device, signal processing method, and speaker device Grant 10,149,053 - Kurosaki , et al. De | 2018-12-04 |
| Audio Amplifier And Audio Power Amplifier App 20180241348 - KAWAGUCHI; Tsuyoshi ; et al. | 2018-08-23 |
| Signal Processing Device, Signal Processing Method, And Speaker Device App 20180041836 - KUROSAKI; Hiroki ; et al. | 2018-02-08 |
| Music reproducing device with active control ground mode Grant 9,762,197 - Asao , et al. September 12, 2 | 2017-09-12 |
| Music reproducing device with first and second D/A converters for converting audio signals prior to inversion Grant 9,712,919 - Asao , et al. July 18, 2 | 2017-07-18 |
| Music Reproducing Device App 20170064455 - ASAO; Kei ; et al. | 2017-03-02 |
| Music Reproducing Device App 20170063320 - ASAO; Kei ; et al. | 2017-03-02 |
| Amplifying circuit and current-voltage conversion circuit Grant 8,552,802 - Kawaguchi , et al. October 8, 2 | 2013-10-08 |
| Amplifying circuit Grant 8,310,307 - Kawaguchi , et al. November 13, 2 | 2012-11-13 |
| Amplifying Circuit App 20120049963 - KAWAGUCHI; Tsuyoshi ; et al. | 2012-03-01 |
| Amplifying Circuit And Current-voltage Conversion Circuit App 20120049895 - KAWAGUCHI; Tsuyoshi ; et al. | 2012-03-01 |
| Vibration-damping structure for audio apparatus Grant 7,773,373 - Morohashi , et al. August 10, 2 | 2010-08-10 |
| Vibration-damping Structure For Audio Apparatus App 20080149805 - Morohashi; Tsuyoshi ; et al. | 2008-06-26 |
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