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公开(公告)号：JP5347215B2
公开(公告)日：2013-11-20
申请号：JP2006222745
申请日：2006-08-17
Applicant: 宇部興産株式会社
IPC: G03B21/62 , G02B5/02 , G02F1/1335 , G03B21/60
Abstract: PROBLEM TO BE SOLVED: To provide an optical screen for projecting display light which excells in light diffusion properties and can reduce the occurrence of hot spots, and to provide a projection-type image display system. SOLUTION: The optical screen has a light diffusion layer, containing particulates having a spherulite structure characteristic of a crystalline high polymer, formed in such a manner that high polymer fibrils are isotropically grown in a three-dimensionally way or radially grown from one or more cores near the center of one individual particle, and having a number average particle diameter range of 1 to 30 μm. COPYRIGHT: (C)2008,JPO&INPIT
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公开(公告)号：JP5146313B2
公开(公告)日：2013-02-20
申请号：JP2008510890
申请日：2007-03-29
Applicant: 宇部興産株式会社
IPC: G02B5/30 , G02F1/1335
CPC classification number: G02B5/3008 , G02B27/288 , G02F1/133528
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公开(公告)号：JP5110429B2
公开(公告)日：2012-12-26
申请号：JP2007537613
申请日：2006-09-25
Applicant: 宇部興産株式会社
CPC classification number: C08J9/28 , A61K8/025 , A61K8/0279 , A61K8/88 , A61K2800/654 , A61Q1/02 , C08J2201/0542 , C08J2377/02 , Y10T428/2982
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Patent Agency Ranking
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38.发明专利
公开(公告)号：JP4419337B2
公开(公告)日：2010-02-24
申请号：JP2001075546
申请日：2001-03-16
Applicant: 宇部興産株式会社
Abstract: PROBLEM TO BE SOLVED: To provide a highly oriented graphite layered sheet having a layered structure, flexibility and toughness and a method for producing the sheet. SOLUTION: The highly oriented graphite layered sheet is obtained from a polyimide film having
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