Hayashi; Yasuko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hayashi; Yasuko.The latest application filed is for "area light source and lightguide used therefore".

Company Profile

0.11.10

Hayashi; Yasuko - Kanagawa JP
Hayashi; Yasuko - Oita JP
Hayashi; Yasuko - Kawasaki 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
Area light source and lightguide used therefore Grant 7,736,045 - Yamashita , et al. June 15, 2	2010-06-15
Area light source Grant 7,520,652 - Yamashita , et al. April 21, 2	2009-04-21
Area light source and lightguide used therefore App 20080232136 - Yamashita; Tomoyoshi ; et al.	2008-09-25
Planar light source system and light deflecting device therefor Grant 7,380,969 - Yamashita , et al. June 3, 2	2008-06-03
Surface light source device and light guide used therefor Grant 7,226,197 - Hayashi , et al. June 5, 2	2007-06-05
Edge lighted device with polarization Grant 7,201,510 - Yamashita , et al. April 10, 2	2007-04-10
Area light source App 20060056200 - Yamashita; Tomoyoshi ; et al.	2006-03-16
Light source device Grant 7,004,610 - Yamashita , et al. February 28, 2	2006-02-28
Flat light source device App 20050248960 - Yamashita, Tomoyoshi ; et al.	2005-11-10
Surface light source device and light guide used therefor App 20050174803 - Hayashi, Yasuko ; et al.	2005-08-11
Area light source and lightguide used therefor App 20040246697 - Yamashita, Tomoyoshi ; et al.	2004-12-09
Light source device App 20040022050 - Yamashita, Tomoyoshi ; et al.	2004-02-05
Planar light source system and light deflecting device therefor App 20040012945 - Yamashita, Tomoyoshi ; et al.	2004-01-22
Planar light source system and light deflecting device therefor Grant 6,669,350 - Yamashita , et al. December 30, 2	2003-12-30
Planar light source device and liquid crystal display apparatus App 20020172030 - Matsumoto, Hiroki ; et al.	2002-11-21
Planar light source system and light deflecting device therefor App 20020163790 - Yamashita, Tomoyoshi ; et al.	2002-11-07
Resin sheet, process and apparatus for producing same, surface light source element and laminate Grant 6,312,787 - Hayashi , et al. November 6, 2	2001-11-06
Surface light source device, and liquid crystal display device, sign display apparatus and traffic sign display apparatus using the surface light source device App 20010030861 - Oda, Mosaharu ; et al.	2001-10-18
Surface light source device and liquid crystal display device sign display apparatus and traffic sign display apparatus using the surface light source device Grant 6,244,719 - Oda , et al. June 12, 2	2001-06-12
Surface light source element and liquid crystal display device, sign device and traffic control sign device using same Grant 6,099,135 - Oda , et al. August 8, 2	2000-08-08
Carrier for electrophotography, process for its production, two-component type developer, and image forming method Grant 5,573,880 - Mayama , et al. November 12, 1	1996-11-12

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