Okajima; Maki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Okajima; Maki.The latest application filed is for "toner".
- Okajima; Maki - Tokyo JP
- Okajima; Maki - Kawasaki JP
- Okajima; Maki - Kawasaki-shi JP
- Okajima; Maki - Tachikawa JP
- Okajima; Maki - Tachikawa-shi JP
| Patent | Date |
|---|---|
| Toner App 20210132519 - Hashimoto; Akira ; et al. | 2021-05-06 |
| Toner Grant 10,151,990 - Suzuki , et al. Dec | 2018-12-11 |
| Toner App 20180149989 - Suzuki; Masao ; et al. | 2018-05-31 |
| Organic light emitting device Grant 9,705,087 - Nakasu , et al. July 11, 2 | 2017-07-11 |
| Organic Light Emitting Device App 20160181528 - NAKASU; MINAKO ; et al. | 2016-06-23 |
| Organic light-emitting device Grant 9,331,296 - Okajima , et al. May 3, 2 | 2016-05-03 |
| Organic light emitting device Grant 9,312,494 - Nakasu , et al. April 12, 2 | 2016-04-12 |
| Fluorenylamine compound, organic light emitting device containing the same, material for organic light emitting device, display apparatus, and image input apparatus Grant 9,115,055 - Horikiri , et al. August 25, 2 | 2015-08-25 |
| Benzopyrene compound and organic light-emitting element containing the same Grant 8,624,231 - Yamada , et al. January 7, 2 | 2014-01-07 |
| Organic light emitting device Grant 8,354,788 - Okinaka , et al. January 15, 2 | 2013-01-15 |
| Organic Light-emitting Device App 20130001542 - Okajima; Maki ; et al. | 2013-01-03 |
| Diindenopicene compound and organic light emitting device using the same Grant 8,299,459 - Okajima , et al. October 30, 2 | 2012-10-30 |
| Novel Fluorenylamine Compound, Organic Light Emitting Device Containing The Same, Material For Organic Light Emitting Device, Display Apparatus, And Image Input Apparatus App 20120211742 - Horikiri; Tomonari ; et al. | 2012-08-23 |
| Organic Light Emitting Device App 20120205639 - Nakasu; Minako ; et al. | 2012-08-16 |
| Pyrene Derivative And Organic Light-emitting Device Using The Same App 20120132901 - Yamada; Naoki ; et al. | 2012-05-31 |
| Novel Benzopyrene Compound And Organic Light-emitting Element Containing The Same App 20110240976 - Yamada; Naoki ; et al. | 2011-10-06 |
| Diindenopicene Compound And Organic Light Emitting Device Using The Same App 20110204349 - Okajima; Maki ; et al. | 2011-08-25 |
| Phenanthroline compound and organic light emitting device using same Grant 7,982,213 - Okajima , et al. July 19, 2 | 2011-07-19 |
| Organic Light Emitting Device App 20110001864 - Okinaka; Keiji ; et al. | 2011-01-06 |
| Organic Light-emitting Device App 20100327274 - Okajima; Maki ; et al. | 2010-12-30 |
| Light-emitting device Grant 7,820,478 - Hasegawa , et al. October 26, 2 | 2010-10-26 |
| Light-emitting device Grant 7,750,340 - Hasegawa , et al. July 6, 2 | 2010-07-06 |
| Light-emitting Device App 20100041171 - Hasegawa; Toshinori ; et al. | 2010-02-18 |
| Phenanthroline Compound And Organic Light Emitting Device Using Same App 20090218940 - Okajima; Maki ; et al. | 2009-09-03 |
| Phenanthroline compound and organic light emitting device using same Grant 7,550,594 - Okajima , et al. June 23, 2 | 2009-06-23 |
| Condensed polycyclic compound and organic light-emitting device using the same Grant 7,338,721 - Suzuki , et al. March 4, 2 | 2008-03-04 |
| Oligofluorenlylene compounds Grant 7,229,702 - Saitoh , et al. June 12, 2 | 2007-06-12 |
| Phenanthroline compound and organic light emitting device using same App 20060097227 - Okajima; Maki ; et al. | 2006-05-11 |
| Organic light emitting device with reverse intersystem crossing light emitting molecules Grant 7,034,454 - Kawai , et al. April 25, 2 | 2006-04-25 |
| Light-emitting device App 20060017050 - Hasegawa; Toshinori ; et al. | 2006-01-26 |
| Condensed polycyclic compound and organic light-emitting device using the same App 20050236974 - Suzuki, Koichi ; et al. | 2005-10-27 |
| Oligofluorenlylene compounds App 20050106414 - Saitoh, Akihito ; et al. | 2005-05-19 |
| Organic light emitting device App 20040150327 - Kawai, Tatsundo ; et al. | 2004-08-05 |
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