H04R 9/16
Signals recorded or played back by vibration of a stylus in two
Official title: signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
H04R9/16 (Signals recorded or played back by vibration of a stylus in two) appears on 41 US grants and 2 published applications in this corpus.
Search patents in H04R- Granted patents
- 41
- Published applications
- 2
- Assignees
- 17
- Inventors
- 57
- Latest grant
- 15 Nov 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Moving-coil type stereo pickup cartridge15 Nov 2016US 9,497,548 B2Kabushiki Kaisha Audio-Technica
- Microphone12 Aug 2008US 7,412,066 B2Tandberg Telecom AS
- Magnetic system for a stereo pick-up with a movable coil28 Nov 1989US 4,884,262 AOrtofon Manufacturing A/S
- Intensified field focus moving coil phonocartridge assembly23 Jun 1987US 4,675,859 ASumiko, Inc.
- Grounding circuit for pickup cartridge moving coil13 Jan 1987US 4,637,009 ANamiki Precision Jewel Co., Ltd.
Most cited
By later US patents
- Moving coil pickup cartridge with diaphragm coupling9US 3,956,598 ASony Corporation · 1976
- Phonographic pickup9US 4,124,783 AKabushiki Kaisha Audio-Technica · 1978
- Moving coil pick-up with coils printed on opposite sides of waver9US 4,246,446 APioneer Electronic Corporation · 1981
- Stereo pickup with printed circuit coils mounted in a linear field8US 4,374,433 AVictor Company of Japan, Ltd. · 1983
- Moving coil cartridge with magnetic means to affix stylus holder to cartridge casing7US 4,093,833 A1978