Yokoyama; Shiyoshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yokoyama; Shiyoshi.The latest application filed is for "nonlinear optically active copolymer into which alicyclic group has been introduced".

Company Profile

2.10.13

Yokoyama; Shiyoshi - Fukuoka JP
YOKOYAMA; Shiyoshi - Fukuoka-shi JP
Yokoyama; Shiyoshi - Koganei JP
Yokoyama, Shiyoshi - Koganei-shi 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
Nonlinear optically active copolymer into which alicyclic group has been introduced Grant 11,061,297 - Yokoyama , et al. July 13, 2	2021-07-13
Second-order nonlinear optical compound and nonlinear optical element comprising the same Grant 10,754,064 - Otomo , et al. A	2020-08-25
Nonlinear Optically Active Copolymer Into Which Alicyclic Group Has Been Introduced App 20190085199 - YOKOYAMA; Shiyoshi ; et al.	2019-03-21
Second-order Nonlinear Optical Compound And Nonlinear Optical Element Comprising The Same App 20180224577 - OTOMO; Akira ; et al.	2018-08-09
Second-order nonlinear optical compound and nonlinear optical element comprising the same Grant 9,977,150 - Otomo , et al. May 22, 2	2018-05-22
Low-resistance Cladding Material And Electro-optic Polymer Optical Waveguide App 20170242189 - YOKOYAMA; Shiyoshi ; et al.	2017-08-24
High refractive index cladding material and electro-optical polymer optical waveguide Grant 9,594,189 - Yokoyama , et al. March 14, 2	2017-03-14
Second-order nonlinear optical compound and nonlinear optical element comprising the same Grant 9,488,755 - Otomo , et al. November 8, 2	2016-11-08
Second-order Nonlinear Optical Compound And Nonlinear Optical Element Comprising The Same App 20160318889 - OTOMO; Akira ; et al.	2016-11-03
Electro-optic Element App 20160313579 - YOKOYAMA; Shiyoshi ; et al.	2016-10-27
Polymer Composition Containing Organic Nonlinear Optical Compound App 20150133588 - Yokoyama; Shiyoshi ; et al.	2015-05-14
Second-order Nonlinear Optical Compound And Nonlinear Optical Element Comprising The Same App 20150048284 - OTOMO; Akira ; et al.	2015-02-19
Second-order nonlinear optical compound and nonlinear optical element comprising the same Grant 8,846,955 - Otomo , et al. September 30, 2	2014-09-30
High Refractive Index Cladding Material And Electro-optical Polymer Optical Waveguide App 20140199038 - Yokoyama; Shiyoshi ; et al.	2014-07-17
Second-order Nonlinear Optical Compound And Nonlinear Optical Element Comprising The Same App 20120172599 - Otomo; Akira ; et al.	2012-07-05
Hyperbranched Polymer Containing Thioester Groups App 20110318554 - Nagashima; Hideo ; et al.	2011-12-29
Thioether derivatives, their method for production and use Grant 7,205,428 - Miki , et al. April 17, 2	2007-04-17
Thioether derivatives, their method for production and use Grant 6,630,578 - Miki , et al. October 7, 2	2003-10-07
Novel thioether derivatives, their method for production and use App 20030171507 - Miki, Hideki ; et al.	2003-09-11
Novel thioether derivatives, their method for production and use App 20020072583 - Miki, Hideki ; et al.	2002-06-13

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