SAKUMA; Hirotaka

Patent Applications and Registrations

Patent applications and USPTO patent grants for SAKUMA; Hirotaka.The latest application filed is for "optical fiber".

Company Profile

24.32.54

SAKUMA; Hirotaka - Osaka-shi Osaka
Sakuma; Hirotaka - Osaka JP
Sakuma; Hirotaka - Yokohama JP
Sakuma; Hirotaka - Hitachinaka JP
SAKUMA; Hirotaka - Tokyo JP
SAKUMA; Hirotaka - Hitachinaka-shi lbaraki
SAKUMA; Hirotaka - Hitchinaka-shi lbaraki
SAKUMA; Hirotaka - Yokohama-shi JP
Sakuma; Hirotaka - Kokubunji JP
Sakuma; Hirotaka - Hachioji JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Optical Fiber App 20220206214 - TAMURA; Yoshiaki ; et al.	2022-06-30
Optical amplifier and multi-core optical fiber Grant 11,322,904 - Hasegawa , et al. May 3, 2	2022-05-03
Optical amplifier and multi-core optical fiber Grant 11,316,316 - Hasegawa , et al. April 26, 2	2022-04-26
Optical fiber, colored optical fiber, and optical transmission system Grant 11,280,958 - Kawaguchi , et al. March 22, 2	2022-03-22
Method For Manufacturing Optical Fiber App 20220009817 - KAWAGUCHI; Yuki ; et al.	2022-01-13
Optical fiber Grant 11,181,684 - Tamura , et al. November 23, 2	2021-11-23
Optical fiber, colored optical fiber, and optical transmission system Grant 11,169,322 - Kawaguchi , et al. November 9, 2	2021-11-09
Optical Fiber App 20210294028 - SAKUMA; Hirotaka ; et al.	2021-09-23
Composition, hole transport material composition, and ink composition Grant 11,118,005 - Kamo , et al. September 14, 2	2021-09-14
Optical fiber Grant 11,048,040 - Sakuma , et al. June 29, 2	2021-06-29
Charge-transport Polymer And Organic Electronic Element App 20210179770 - FUKUSHIMA; Iori ; et al.	2021-06-17
Charge-transport Polymer And Organic Electronic Element App 20210179771 - FUKUSHIMA; Iori ; et al.	2021-06-17
Optical Fiber App 20210171390 - TAMURA; Yoshiaki ; et al.	2021-06-10
Optical fiber, coated optical fiber, and optical transmission system Grant 10,989,864 - Kawaguchi , et al. April 27, 2	2021-04-27
Optical Fiber App 20200400879 - KAWAGUCHI; Yuki ; et al.	2020-12-24
Optical Fiber App 20200393613 - TAMURA; Yoshiaki ; et al.	2020-12-17
Optical Fiber, Coated Optical Fiber, And Optical Transmission System App 20200333528 - KAWAGUCHI; Yuki ; et al.	2020-10-22
Optical Fiber App 20200292750 - SUZUKI; Masato ; et al.	2020-09-17
Optical Fiber App 20200249393 - Kind Code	2020-08-06
Optical Fiber App 20200241198 - SAKUMA; Hirotaka ; et al.	2020-07-30
Optical fiber preform Grant 10,723,650 - Morita , et al.	2020-07-28
Organic Electronic Material And Use Thereof App 20200235312 - SUGIOKA; Tomotsugu ; et al.	2020-07-23
Organic Electronics Material And Organic Electronics Element App 20200161556 - KAMO; Kazuyuki ; et al.	2020-05-21
Optical fiber Grant 10,656,329 - Sakuma , et al.	2020-05-19
Optical fiber Grant 10,656,326 - Sakuma , et al.	2020-05-19
Organic Electronic Material, Ink Composition, Organic Layer And Organic Electronic Element App 20200106018 - HONNA; Ryo ; et al.	2020-04-02
Organic Electronic Material, Organic Electronic Element, And Organic Electroluminescent Element App 20200083456 - SUGIOKA; Tomotsugu ; et al.	2020-03-12
Composition, Hole Transport Material Composition, And Ink Composition App 20200048408 - KAMO; Kazuyuki ; et al.	2020-02-13
Optical fiber Grant 10,550,030 - Sakuma , et al. Fe	2020-02-04
Branched Polymer Production Method, Branched Polymer, And Organic Electronic Element App 20200032001 - ISHITSUKA; Kenichi ; et al.	2020-01-30
Optical Fiber App 20200024182 - SAKUMA; Hirotaka ; et al.	2020-01-23
Branched Polymer Production Method, Branched Polymer, And Organic Electronic Element App 20200017631 - ISHITSUKA; Kenichi ; et al.	2020-01-16
Organic Electronic Material, Ink Composition, Organic Layer, Organic Electronic Element, Organic Electroluminescent Element, Dis App 20190393417 - SUGIOKA; Tomotsugu ; et al.	2019-12-26
Optical Fiber App 20190324195 - SAKUMA; Hirotaka ; et al.	2019-10-24
Optical Fiber Base Material Manufacturing Method, Optical Fiber Base Material, And Optical Fiber App 20190292089 - SAKUMA; Hirotaka ; et al.	2019-09-26
Optical Fiber, Colored Optical Fiber, And Optical Transmission System App 20190278020 - KAWAGUCHI; Yuki ; et al.	2019-09-12
Optical Amplifier And Multi-core Optical Fiber App 20190207358 - HASEGAWA; Takemi ; et al.	2019-07-04
Method For Axial Alignment Of Coupled Multicore Optical Fiber App 20190113682 - SAKUMA; Hirotaka ; et al.	2019-04-18
Optical Amplifier And Multi-core Optical Fiber App 20190115715 - HASEGAWA; Takemi ; et al.	2019-04-18
Optical Fiber Preform App 20190016630 - MORITA; Keisei ; et al.	2019-01-17
Optical Fiber App 20180362392 - SAKUMA; Hirotaka ; et al.	2018-12-20
Optical fiber Grant 10,031,282 - Sakuma , et al. July 24, 2	2018-07-24
Material for forming organic light-emitting layer, coating liquid for forming organic light-emitting element, organic light-emitting element and light source device, and method for manufacturing same Grant 9,954,193 - Aratani , et al. April 24, 2	2018-04-24
Organic light-emitting device, light source device using same, organic light-emitting layer material, coating liquid for forming organic light-emitting layer, and method for producing organic light-emitting device Grant 9,935,291 - Aratani , et al. April 3, 2	2018-04-03
Optical Fiber App 20170371096 - SAKUMA; Hirotaka ; et al.	2017-12-28
Optical fiber Grant 9,817,184 - Tamura , et al. November 14, 2	2017-11-14
Optical Fiber App 20170108642 - TAMURA; Yoshiaki ; et al.	2017-04-20
Organic luminescent materials, coating solution using same for organic Grant 9,570,717 - Sakuma , et al. February 14, 2	2017-02-14
Organic light-emitting element, light source device and method of manufacturing organic light-emitting element Grant 9,496,516 - Sakuma , et al. November 15, 2	2016-11-15
Organic light-emitting layer material, coating liquid for use in forming organic light-emitting layer with organic material, organic light-emitting device produced with coating liquid, light source apparatus with organic light-emitting device, and methods for manufacture thereof Grant 9,306,177 - Sakuma , et al. April 5, 2	2016-04-05
Organic luminescent materials, coating solution using organic luminescent materials for organic emitting layer, organic light emitting device using coating solution, light source device using organic light emitting device and method of organic light emitting device Grant 9,281,489 - Sakuma , et al. March 8, 2	2016-03-08
Organic Luminescent Materials, Coating Solution Using Same For Organic App 20150311479 - Sakuma; Hirotaka ; et al.	2015-10-29
Organic light-emitting device, coating liquid for forming organic light-emitting device, material for forming organic light-emitting device, light source device using organic light-emitting device, and organic light-emitting device producing method Grant 9,118,031 - Sakuma , et al. August 25, 2	2015-08-25
Organic luminescent materials, coating solution using same for organic Grant 9,105,856 - Sakuma , et al. August 11, 2	2015-08-11
Organic Light-emitting Layer Material, Coating Liquid For Use In Forming Organic Light-emitting Layer With Organic Material, Organic Light-emitting Device Produced With Coating Liquid, Light Source Apparatus With Organic Light-emitting Device, And Methods For Manufacture Thereof App 20150194613 - Sakuma; Hirotaka ; et al.	2015-07-09
Organic Luminescent Materials, Coating Solution Using Same For Organic App 20140203265 - Sakuma; Hirotaka ; et al.	2014-07-24
Organic Light-emitting Element, Light Source Device And Method Of Manufacturing Organic Light-emitting Element App 20140151678 - Sakuma; Hirotaka ; et al.	2014-06-05
Material For Forming Organic Light-emitting Layer, Coating Liquid For Forming Organic Light-emitting Element, Organic Light-emitting Element And Light Source Device, And Method For Manufacturing Same App 20140138663 - Aratani; Sukekazu ; et al.	2014-05-22
Organic luminescent materials, coating solution using same for organic emitting layer, organic light emitting device using coating solution and light source device using organic light emitting device Grant 8,729,536 - Sakuma , et al. May 20, 2	2014-05-20
Organic Light-emitting Device, Coating Liquid For Forming Organic Light-emitting Device, Material For Forming Organic Light-emitting Device, Light Source Device Using Organic Light-emitting Device, And Organic Light-emitting Device Producing Method App 20130299788 - Sakuma; Hirotaka ; et al.	2013-11-14
Organic Light-emitting Device, Light Source Device Using Same, Organic Light-emitting Layer Material, Coating Liquid For Forming Organic Light-emitting Layer, And Method For Producing Organic Light-emitting Device App 20130277662 - Aratani; Sukekazu ; et al.	2013-10-24
Organic Luminescent Materials, Coating Solution Using Organic Luminescent Materials For Organic Emitting Layer, Organic Light Emitting Device Using Coating Solution, Light Source Device Using Organic Light Emitting Device And Method Of Organic Light Emitting Device App 20130221337 - Sakuma; Hirotaka ; et al.	2013-08-29
Organic Light-emitting Devices And Light Source Systems App 20130153881 - Tokoo; Naoya ; et al.	2013-06-20
Organic Luminescent Materials, Coating Solution Using Same For Organic Emitting Layer, Organic Light Emitting Device Using Coating Solution And Light Source Device Using Organic Light Emitting Device App 20130048974 - Sakuma; Hirotaka ; et al.	2013-02-28
Organic luminescent materials, coating solution using same for organic emitting layer, organic light emitting device using coating solution and light source device using organic light emitting device Grant 8,319,211 - Sakuma , et al. November 27, 2	2012-11-27
Plasma display device Grant 8,115,388 - Sakuma , et al. February 14, 2	2012-02-14
Organic Luminescent Materials, Coating Solution Using Same For Organic Emitting Layer, Organic Light Emitting Device Using Coating Solution And Light Source Device Using Organic Light Emitting Device App 20110175066 - SAKUMA; Hirotaka ; et al.	2011-07-21
Plasma display with a novel green-silicate phosphor Grant 7,786,659 - Oaku , et al. August 31, 2	2010-08-31
Plasma Display Device App 20090224668 - Sakuma; Hirotaka ; et al.	2009-09-10
Plasma Display Device App 20090058255 - OAKU; Hitoshi ; et al.	2009-03-05
Display App 20080067917 - Komatsu; Masaaki ; et al.	2008-03-20
Plasma Display Device And Light Emitting Device App 20080048547 - Oaku; Hitoshi ; et al.	2008-02-28
Display App 20070210693 - KOMATSU; Masaaki ; et al.	2007-09-13

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