公开(公告)号：US11513395B1

公开(公告)日：2022-11-29

申请号：US17828540

申请日：2022-05-31

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Yujiro Yanai ,  Takeharu Tani ,  Shunya Katoh

IPC: G02F1/13363 ,  G02F1/137 ,  G01J1/04

Abstract: Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor. The bandpass filter is a bandpass filter including a reflective member A and a reflective member B, in which a difference between a reflection center wavelength of the reflective member A and a reflection center wavelength of the reflective member B is larger than a sum of a half width at half maximum of a reflection band of the reflective member A and a half width at half maximum of a reflection band of the reflective member B; the reflective member A has a first cholesteric liquid crystal layer and a second cholesteric liquid crystal layer, and birefringence Δn1 of the first cholesteric liquid crystal layer is larger than birefringence Δn2 of the second cholesteric liquid crystal layer; and the reflective member B has a third cholesteric liquid crystal layer and a fourth cholesteric liquid crystal layer, and birefringence Δn3 of the third cholesteric liquid crystal layer is larger than birefringence Δn4 of the fourth cholesteric liquid crystal layer.

公开(公告)号：US09795955B2

公开(公告)日：2017-10-24

申请号：US15238924

申请日：2016-08-17

Applicant: FUJIFILM Corporation

Inventor： Sotaro Inomata ,  Keisuke Kodama ,  Kazuomi Inoue

IPC: B01J39/20 ,  B01D71/82 ,  C08F12/34 ,  C08F2/38 ,  C08F228/00 ,  H01M8/10 ,  H01M8/1023 ,  C08F12/30 ,  B01J47/12 ,  B01J20/04 ,  B01D61/00 ,  B01D61/02 ,  B01D71/44 ,  C08F212/34 ,  C08F220/58 ,  C08F228/02 ,  C08F292/00 ,  C08J5/22 ,  B01J39/05 ,  B01D61/48

CPC classification number: B01J39/20 ,  B01D61/002 ,  B01D61/02 ,  B01D61/44 ,  B01D61/48 ,  B01D61/485 ,  B01D71/44 ,  B01D71/82 ,  B01D2323/385 ,  B01D2325/14 ,  B01D2325/42 ,  B01J20/043 ,  B01J39/05 ,  B01J47/12 ,  C08F2/38 ,  C08F2/44 ,  C08F12/30 ,  C08F12/34 ,  C08F212/34 ,  C08F220/58 ,  C08F228/00 ,  C08F228/02 ,  C08F292/00 ,  C08F2220/382 ,  C08F2220/585 ,  C08J5/2243 ,  C08J2325/18 ,  C08J2333/24 ,  C08J2341/00 ,  C08J2351/10 ,  H01M8/1023

Abstract: Provided are a curable composition including a compound expressed by General Formula (1) below; a polymerization initiator; and a chain transfer agent, and a cured polymer product. In General Formula (1), m represents an integer of 1 to 4, and n represents an integer of 1 to 4. Here, a sum of m and n is not greater than 5. MA represents a hydrogen ion, an inorganic ion, or an organic ion. Here, an inorganic ion and an organic ion may be bivalent or higher ions. Each of R1 and R2 independently represents a hydrogen atom or an alkyl group.

公开(公告)号：US12054660B2

公开(公告)日：2024-08-06

申请号：US17847658

申请日：2022-06-23

Applicant: FUJIFILM Corporation

Inventor： Yuki Fukushima ,  Megumi Okubo ,  Keisuke Kodama ,  Shunya Katoh

IPC: C09K19/28 ,  C07C323/12 ,  C07C323/19 ,  C09K19/18 ,  C09K19/32 ,  C09K19/34 ,  G02B5/30 ,  G02B6/27

CPC classification number: C09K19/28 ,  C07C323/12 ,  C07C323/19 ,  C09K19/18 ,  C09K19/322 ,  C09K19/3405 ,  G02B5/3016 ,  G02B6/2726 ,  C09K2323/02

Abstract: A compound represented by the General Formula (I) as defined herein, in which, in the General Formula (I), P1 and P2 each independently represent a hydrogen atom, —CN, —NCS, or a polymerizable group, Sp1 and Sp2 each independently represent a single bond or a divalent linking group as defined herein, Z1, Z2 and Z3 each independently represent a particular linking group as defined herein, X1 and X2 each independently represent a single bond or —S as defined herein, k represents an integer of 2 to 4, m and n each independently represent an integer of 0 to 3 as defined herein, A1, A2, A3, and A4 each independently represent a particular group as defined herein is provided.

公开(公告)号：US11693278B2

公开(公告)日：2023-07-04

申请号：US17702909

申请日：2022-03-24

Applicant: FUJIFILM Corporation

Inventor： Yukito Saitoh ,  Keisuke Kodama ,  Hiroshi Sato ,  Katsumi Sasata

IPC: G02F1/1337 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/137

CPC classification number: G02F1/133788 ,  G02F1/13718 ,  G02F1/133504 ,  G02F1/133636

Abstract: Provided are a liquid crystal diffraction element which exhibits low scattering and high sharpness of diffracted light, and a method for producing the same. A liquid crystal diffraction element having an alignment film which has a periodic pattern and also having a cholesteric liquid crystal layer, in which: the periodic pattern is imparted to the alignment film as a result of alignment elements having different tilt angles being periodically arranged in the alignment film or the alignment elements being arranged in a manner such that the azimuth direction thereof swings in one in-plane direction; the direction of the molecular axis of a liquid crystal compound changes while continuously rotating and in at least one in-plane direction on at least one main surface among the pair of main surfaces of the cholesteric liquid crystal layer; the molecular axis of the liquid crystal compound is tilted with respect to the main surfaces of the cholesteric liquid crystal layer; and an arrangement direction of bright portion and dark portion derived from the cholesteric liquid crystalline phase observed by a scanning electron microscope in a cross section perpendicular to the main surfaces is tilted with respect to the main surfaces of the cholesteric liquid crystal layer.

公开(公告)号：US11634638B2

公开(公告)日：2023-04-25

申请号：US16837726

申请日：2020-04-01

Applicant: FUJIFILM Corporation

Inventor： Shunya Katoh ,  Keisuke Kodama ,  Yuko Suzuki

IPC: C09K19/38 ,  C08F220/30 ,  C09K19/58 ,  G02B5/08

Abstract: Provided are a liquid crystal composition which has excellent planarity in a case of being formed into a coating film and is also capable of forming a reflective layer having excellent diffuse reflectivity, a reflective layer that is formed using the liquid crystal composition, and a method for producing a reflective layer. Provided also is a copolymer that can be used as an alignment control agent for a liquid crystal compound.

公开(公告)号：US11193068B2

公开(公告)日：2021-12-07

申请号：US16655236

申请日：2019-10-17

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Shunya Katoh

IPC: C09K19/58 ,  C09K19/32 ,  C09K19/34 ,  G02F1/1333 ,  G02F1/1335 ,  C09K19/04

Abstract: A compound has a strong
HTP and a high temperature dependence of HTP. In addition, a liquid crystal composition, a cured substance, an optical anisotropic boy, and a reflection film the above-described compound. The compound is represented by General Formula (1), wherein X1 and X2 each independently represent —CH═CH—or C≡C—.

公开(公告)号：US10478786B2

公开(公告)日：2019-11-19

申请号：US15679160

申请日：2017-08-17

Applicant: FUJIFILM Corporation

Inventor： Koji Hironaka ,  Keisuke Kodama ,  Satoshi Sano

IPC: B01D71/64 ,  B01D61/36 ,  B01D71/80 ,  C08G73/12 ,  C08G77/455 ,  C10L3/10 ,  C01B32/55 ,  B01D53/14 ,  C07C9/04

Abstract: A gas separation membrane has a gas separation layer containing a poly(benzoxazole-imide) compound in which the poly(benzoxazole-imide) compound having structural units represented by General formulae (I) and (II), or structural units represented by General formulae (I), (II) and (III) satisfies a specific molar quantity condition. In the formulae, X and Y each represent a single bond or a specific divalent linking group; L represents a specific divalent linking group including a phenylene group; and R represents a specific group. A gas separation module and a gas separation method use the gas separation membrane. A gas separation apparatus includes the gas separation module.

公开(公告)号：US10087263B2

公开(公告)日：2018-10-02

申请号：US15252859

申请日：2016-08-31

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Kuniyuki Kaminaga

IPC: C08F20/58 ,  B01J39/20 ,  B01D71/40 ,  C07C309/24 ,  B01D71/82 ,  C08F222/38 ,  H01B1/12 ,  H01M8/1023 ,  H01M8/1069 ,  H01M8/1072 ,  B01D67/00 ,  C07C303/32 ,  C08J5/22 ,  B01D61/00 ,  B01D61/02 ,  B01D61/42

Abstract: There is provided a curable composition including a water-soluble acrylamide monomer represented by the following General Formula (1-1) or (1-2), a polymer functional cured product, a water-soluble acrylamide compound, and a method for manufacturing the same. In General Formulas (1-1) and (1-2), m represents an integer of 2 or greater, and L represents an m-valent group or a single bond. Here, in a case where L is a single bond, m is 2. L1 and L2 each represent a single bond or a divalent linking group. R1 to R5 each represent a hydrogen atom or a substituent, and may be bonded to each other to form a ring, and may be bonded to L, L1, or L2 to form a ring. Either one of RA and RB represents a group represented by General Formula (a), and the other represents a group represented by General Formula (b).

公开(公告)号：US09850147B2

公开(公告)日：2017-12-26

申请号：US14668222

申请日：2015-03-25

Applicant: FUJIFILM Corporation

Inventor： Tetsufumi Takamoto ,  Akihito Amao ,  Nagisa Toihara ,  Morihito Ikeda ,  Satoshi Sano ,  Keisuke Kodama

IPC: B01D39/00 ,  B01D39/14 ,  B01D71/28 ,  B01D29/46 ,  B05D5/00 ,  C02F1/469 ,  B01J47/12 ,  B01D71/40 ,  B01D71/82 ,  C08F222/38 ,  B01D67/00 ,  B01D69/10 ,  B01D71/66 ,  B01D69/02 ,  C08J5/22

CPC classification number: C02F1/4695 ,  B01D67/0006 ,  B01D69/02 ,  B01D69/10 ,  B01D71/40 ,  B01D71/66 ,  B01D71/82 ,  B01D2323/30 ,  B01D2323/34 ,  B01D2323/345 ,  B01D2325/02 ,  B01D2325/20 ,  B01D2325/26 ,  B01D2325/42 ,  B01J47/12 ,  C02F2301/00 ,  C08F222/385 ,  C08J5/2231 ,  C08J2333/14

Abstract: A functional polymer membrane having a pore volume fraction of 0.6% or more and 3.0% or less by allowing a reaction of curing a composition containing a polymerizable compound (A) and a copolymerizable monomer (B).

公开(公告)号：US12085746B2

公开(公告)日：2024-09-10

申请号：US17583433

申请日：2022-01-25

Applicant: FUJIFILM Corporation

Inventor： Fumitake Mitobe ,  Keisuke Kodama ,  Katsumi Sasata ,  Yukito Saitoh

IPC: F21V8/00 ,  G02B5/18

CPC classification number: G02B6/0055 ,  G02B5/1833 ,  G02B6/0025

Abstract: Provided are a backlight unit and a liquid crystal display device including the backlight unit, the backlight unit being capable of switching between viewing angles in the liquid crystal display device and having a configuration in which the brightness values of emitted light on the “+” side and the “−” side at a polar angle with respect to the normal line are symmetric to each other. The backlight unit includes: a light guide plate; a first light source that guides light into the light guide plate from a long side or a short side of the light guide plate; a second light source that guides light into the light guide plate from a side of the light guide plate different from that of the first light source; a first diffraction element that is provided on one main surface of the light guide plate and diffracts only light emitted from one of the first light source or the second light source; a second diffraction element that is provided on another main surface of the light guide plate and diffracts only light emitted from another one of the first light source or the second light source; and a reflection plate that is provided on a surface of the light guide plate opposite to a light emission surface.