G11B 7/2463
Azulene
Official title: azulene
G11B7/2463 (Azulene) appears on 74 US grants and 77 published applications in this corpus.
Search patents in G11B- Granted patents
- 74
- Published applications
- 77
- Assignees
- 31
- Inventors
- 201
- Latest grant
- 17 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 0 | 8 |
| 2005 | 2 | 7 |
| 2006 | 1 | 18 |
| 2007 | 3 | 7 |
| 2008 | 7 | 7 |
| 2009 | 5 | 12 |
| 2010 | 6 | 9 |
| 2011 | 7 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Organic compound, near infrared absorbing dye, photoelectric conversion element, light sensor thereof, and imaging element17 May 2022US 11,333,964 B2Nippon Kayaku Kabushiki Kaisha
- Process and apparatus for producing optical recording medium24 Nov 2015US 9,196,288 B2Mitsubishi Kagaku Media Co., Ltd.
- Optical recording medium and method for manufacturing the same6 Jan 2015US 8,927,082 B2Ricoh Company, Ltd.
- Film for producing a sheet for a multilayer optical recording medium21 Jan 2014US 8,632,871 B2Lintec Corporation
- Sheet for multilayer optical recording medium and multilayer optical recording medium using the same16 Apr 2013US 8,420,199 B2Lintec Corporation
- Organic compound, near infrared absorbing dye, photoelectric conversion element, light sensor thereof, and imaging element21 Mar 2019US 2019/0086790 A1Nippon Kayaku Kabushiki Kaisha
- Film for producing a sheet for a multilayer optical recording medium1 Aug 2013US 2013/0196115 A1Lintec Corporation
- Optical recording medium, optical recording material and metal complex compound22 Dec 2011US 2011/0311752 A1Mitsubishi Kagaku Media Co., Ltd.
- Sheet for multilayer optical recording medium and multilayer optical recording medium using the same14 Apr 2011US 2011/0085437 A1Lintec Corporation
- Squarylium compound, optical recording medium using the same, recording/reproduction method and optical recording apparatus30 Sep 2010US 2010/0246363 A1Kyowa Hakko Chemical Co., Ltd.
Most cited
By later US patents
- Optical information recording medium59US 4,656,121 ARicoh Company, Ltd. · 1987
- Optical recording medium and process for production thereof43US 5,978,348 ACanon Kabushiki Kaisha · 1999
- Optical recording medium having a liquid crystal layer28US 4,752,820 ATDK Corporation · 1988
- Optical information recording medium27US 4,714,667 ARicoh Company, Ltd. · 1987
- Optical information recording element27US 4,891,305 ARicoh Company, Ltd. · 1990