公开(公告)号：US20140340752A1

公开(公告)日：2014-11-20

申请号：US14372260

申请日：2012-12-20

Applicant: LINTEC Corporation

Inventor： Kentaro Kusama ,  Tomoo Orui ,  Kenta Tomioka ,  Satoru Shoshi

IPC: G02B5/02

CPC classification number: G02B5/0268 ,  G02B5/021 ,  G02B5/0236 ,  G02B26/023 ,  G02F1/133504

Abstract: Provided are a method for producing a light diffusion film, capable of easily regulating the combination of the inclination angles of plural plate-shaped regions in plural louver structure regions, and also capable of efficiently producing a light diffusion film having increased uniformity of the intensity of diffused light in the light diffusion angle region, and an effectively expanded light diffusion angle region; and a light diffusion film thus obtained. Disclosed is a method for producing a light diffusion film having first and second louver structure regions, the method including the following steps (a) to (d): (a) preparing a composition for light diffusion film; (b) applying the composition for light diffusion film, and forming a coating layer; (c) performing first active energy ray irradiation, and forming a first louver structure region in the lower part of the coating layer, while leaving a louver structure-unformed region in the upper part of the coating layer; and (d) performing second active energy ray irradiation, and forming a second louver structure region in the louver structure-unformed region.

Abstract translation: 本发明提供一种光扩散膜的制造方法，其能够容易地调节多个百叶窗结构区域中的多个板状区域的倾斜角度的组合，并且还能够有效地制造具有均匀度增加的光扩散膜 扩散光在光扩散角区域中，并且有效地扩展光扩散角区域; 和由此获得的光漫射膜。 公开了一种具有第一和第二百叶窗结构区域的光漫射膜的制造方法，该方法包括以下步骤（a）至（d）：（a）制备光扩散膜组合物; （b）施加光扩散膜用组合物，形成被覆层; （c）进行第一活性能量射线照射，在涂层的下部形成第一百叶窗结构区域，同时在涂层的上部留下百叶窗结构未形成区域; 和（d）进行第二活性能量射线照射，并且在百叶窗结构未形成区域中形成第二百叶窗结构区域。

公开(公告)号：US11891491B2

公开(公告)日：2024-02-06

申请号：US17312051

申请日：2019-12-12

Applicant: LINTEC CORPORATION

Inventor： Hiroki Hoshino ,  Tomoo Orui

IPC: C08J7/04 ,  C09D7/40 ,  C09D7/61 ,  C08J7/046 ,  C08J7/043 ,  C09D175/16 ,  G06F3/0354 ,  C08L33/08 ,  C08L35/02 ,  G06F3/041

CPC classification number: C08J7/042 ,  C08J7/043 ,  C08J7/046 ,  C09D7/61 ,  C09D7/69 ,  C09D7/70 ,  C09D175/16 ,  G06F3/03545 ,  C08J2367/02 ,  C08J2475/16 ,  C08L33/08 ,  C08L35/02 ,  G06F3/041

Abstract: A writing feel improving sheet comprising a base material and a writing feel improving layer with which a touch pen is brought into contact, wherein when a touch pen having a pen tip of 0.5 mm diameter is used to bring the pen tip into contact with a surface of the writing feel improving layer with which the touch pen is brought into contact and the touch pen is then linearly slid at a speed of 1.6 mm/second while applying a load of 200 g to the touch pen and maintaining an angle formed between the touch pen and the surface at 45°, a difference between a maximum value and a minimum value of frictional force generated between the pen tip and the surface is 80 mN or more and 300 mN or less, wherein the frictional force is measured between a point at which a sliding distance is 10 mm and a point at which the sliding distance is 100 mm. The writing feel improving sheet makes it possible to well reproduce the writing feel experienced when writing on paper with a ballpoint pen.

公开(公告)号：US11385166B2

公开(公告)日：2022-07-12

申请号：US16999681

申请日：2020-08-21

Applicant: LINTEC CORPORATION

Inventor： Hiroki Hoshino ,  Masaya Todaka ,  Tomoo Orui

IPC: G01N21/03 ,  B32B3/30 ,  B32B7/14 ,  B32B7/05 ,  B01L3/00

Abstract: [Problems] Objects include providing a cover film for testing which can be well fixed to a substrate having a groove and with which a material that constitutes an adhesive layer does not invade into the groove and a specimen can be easily stored in the groove, providing a testing member including the cover film for testing, and providing a method of manufacturing the cover film for testing.
[Solution] The cover film for testing (1) comprises a base material (10), a hydrophilic coating layer (20) laminated on a surface of the base material (10), and an adhesive layer (30) partially laminated on a surface of the hydrophilic coating layer (20) opposite to the base material (10), whereby the cover film for testing (1) has a region in which the adhesive layer (30) is absent and the hydrophilic coating layer (20) is exposed.

公开(公告)号：US10788414B2

公开(公告)日：2020-09-29

申请号：US15924394

申请日：2018-03-19

Applicant: LINTEC CORPORATION

Inventor： Hiroki Hoshino ,  Masaya Todaka ,  Tomoo Orui

IPC: G01N21/03 ,  B32B3/30 ,  B32B7/14 ,  B32B7/05 ,  B01L3/00

Abstract: A cover film for testing which can be well fixed to a substrate having a groove and with which a material that constitutes an adhesive layer does not invade into the groove and a specimen can be easily stored in the groove, providing a testing member including the cover film for testing, and providing a method of manufacturing the cover film for testing.The cover film for testing comprises a base material, a hydrophilic coating layer laminated on a surface of the base material, and an adhesive layer partially laminated on a surface of the hydrophilic coating layer opposite to the base material, whereby the cover film for testing has a region in which the adhesive layer is absent and the hydrophilic coating layer is exposed.

公开(公告)号：US10228498B2

公开(公告)日：2019-03-12

申请号：US14786878

申请日：2014-03-13

Applicant: LINTEC Corporation ,  TOHOKU University

Inventor： Kentaro Kusama ,  Baku Katagiri ,  Tomoo Orui ,  Satoru Shoshi ,  Hideo Fujikake ,  Takahiro Ishinabe

IPC: G02B5/02 ,  G02F1/1335

Abstract: An optical-diffusion film for display which, particularly when applied to a display device using a collimated backlight as a backlight for the display panel, can efficiently diffuse and emit a highly directional light emitted from the collimated backlight toward the front of the display device as image display light, without allowing straight transmission of the highly directional light, and a display device using the optical-diffusion film for display are provided.Disclosed is a single layered optical-diffusion film having a columnar structure in which plural pillar-shaped objects having a relatively high refractive index are arranged to stand close together in a film thickness direction in a region having a relatively low refractive index, in which the film thickness of the optical-diffusion film has a value within the range of 60 to 700 μm, and the haze value obtainable in the case in which light is made incident in the normal line direction of the film plane has a value of 80% or more.

公开(公告)号：US09869803B2

公开(公告)日：2018-01-16

申请号：US14773920

申请日：2014-02-04

Applicant: LINTEC Corporation

Inventor： Kentaro Kusama ,  Baku Katagiri ,  Tomoo Orui

IPC: G02B5/02 ,  C08J7/04 ,  C08F283/00 ,  C08F290/14 ,  G02B1/04

CPC classification number: G02B5/0236 ,  C08F283/006 ,  C08F290/147 ,  C08J7/047 ,  C08J2367/02 ,  C08J2433/06 ,  C08J2475/16 ,  G02B1/04 ,  G02B5/0257 ,  G02B2207/123 ,  C08F220/30 ,  C08F2220/301 ,  C08L33/08 ,  C08L33/10 ,  C08L75/16

Abstract: Provided are a composition for light diffusion film which has satisfactory incident angle dependency in transmission and diffusion of light, does not easily undergo yellowing even if exposed to ultraviolet radiation for a long time, and has excellent weather resistance, and a light diffusion film formed by curing the composition. Disclosed is a composition for light diffusion film, which includes a (meth)acrylic acid ester containing plural aromatic rings as component (A), a urethane (meth)acrylate as component (B), a photopolymerization initiator as component (C), and a hindered amine-based photostabilizer as component (D), and in which the content of the component (A) has a value within a predetermined range relative to 100 parts by weight of the component (B), the content of the component (C) has a value within a predetermined range relative to the total amount (100 parts by weight) of the component (A) and the component (B), and the content of the component (D) has a value within a predetermined range relative to the total amount (100 parts by weight) of the component (A) and the component (B).

公开(公告)号：US20170351010A1

公开(公告)日：2017-12-07

申请号：US15685311

申请日：2017-08-24

Applicant: LINTEC Corporation

Inventor： Kentaro Kusama ,  Baku Katagiri ,  Tomoo Orui ,  Satoru Shoshi

IPC: G02B5/02 ,  C08L33/14 ,  C08L55/00 ,  G02F1/1335 ,  C08F299/06

CPC classification number: G02B5/0247 ,  C08F299/065 ,  C08L33/14 ,  C08L55/005 ,  G02B5/0236 ,  G02B5/0257 ,  G02B5/0268 ,  G02B5/0278 ,  G02B2207/123 ,  G02F1/133504

Abstract: Provided are a light diffusion film having a single-layered light diffusion layer, in which the uniformity of the intensity of diffused light in the light diffusion angle region can be increased, or the light diffusion angle region can be expanded effectively, by regulating the combination of the angles of inclination of pillar-shaped objects in plural columnar structure regions, and a method for manufacturing a light diffusion film. Disclosed is a light diffusion film having a single-layered light diffusion layer, the light diffusion film having a first columnar structure region and a second columnar structure region, in which plural pillar-shaped objects having a relatively high refractive index are arranged to stand close together in a region having a relatively low refractive index, sequentially from the lower part of the film along the film plane.

公开(公告)号：US09523799B2

公开(公告)日：2016-12-20

申请号：US14372260

申请日：2012-12-20

Applicant: LINTEC Corporation

Inventor： Kentaro Kusama ,  Tomoo Orui ,  Kenta Tomioka ,  Satoru Shoshi

IPC: G02B5/02 ,  G02B26/02 ,  G02F1/1335

CPC classification number: G02B5/0268 ,  G02B5/021 ,  G02B5/0236 ,  G02B26/023 ,  G02F1/133504

Abstract: A method for producing a light diffusion film having first and second louver structure regions includes the following steps (a) to (d): (a) preparing a composition for light diffusion film; (b) applying the composition for light diffusion film, and forming a coating layer; (c) performing first active energy ray irradiation, and forming a first louver structure region in the lower part of the coating layer, while leaving a louver structure-unformed region in the upper part of the coating layer; and (d) performing second active energy ray irradiation, and forming a second louver structure region in the louver structure-unformed region.

Abstract translation: 一种具有第一和第二百叶窗结构区域的光扩散膜的制造方法，包括以下工序（a）〜（d）：（a）制备光扩散膜用组合物， （b）施加光扩散膜用组合物，形成被覆层; （c）进行第一活性能量射线照射，在涂层的下部形成第一百叶窗结构区域，同时在涂层的上部留下百叶窗结构未形成区域; 和（d）进行第二活性能量射线照射，并且在百叶窗结构未形成区域中形成第二百叶窗结构区域。

公开(公告)号：US11035780B2

公开(公告)日：2021-06-15

申请号：US16877961

申请日：2020-05-19

Applicant: LINTEC CORPORATION

Inventor： Masaya Todaka ,  Hiroki Hoshino ,  Tomoo Orui

IPC: G01N21/03 ,  B01L3/00 ,  G01N21/51

Abstract: [Problems] Objects include providing a cover film for testing which can be well fixed to a substrate having a groove and in which a pressure sensitive adhesive does not invade into the groove, providing a testing member comprising the cover film for testing, and providing a method of manufacturing the cover film for testing.
[Solution] The cover film for testing (1, 2) comprises a base material (10) and a pressure sensitive adhesive layer (20) laminated on one surface side of the base material (10). The cover film for testing (1, 2) has a region in which the pressure sensitive adhesive layer (20) does not exist in the plan view.

公开(公告)号：US10697886B2

公开(公告)日：2020-06-30

申请号：US15831758

申请日：2017-12-05

Applicant: LINTEC CORPORATION

Inventor： Masaya Todaka ,  Hiroki Hoshino ,  Tomoo Orui

IPC: G01N21/03 ,  B01L3/00 ,  G01N21/51

Abstract: [Problems] Objects include providing a cover film for testing which can be well fixed to a substrate having a groove and in which a pressure sensitive adhesive does not invade into the groove, providing a testing member comprising the cover film for testing, and providing a method of manufacturing the cover film for testing.[Solution] The cover film for testing (1, 2) comprises a base material (10) and a pressure sensitive adhesive layer (20) laminated on one surface side of the base material (10). The cover film for testing (1, 2) has a region in which the pressure sensitive adhesive layer (20) does not exist in the plan view.