公开(公告)号：US20240172395A1

公开(公告)日：2024-05-23

申请号：US18281118

申请日：2022-03-09

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kazunori ODA ,  Shinichiro TAKAHASHI ,  Toshihiko TAKEDA ,  Takayuki OTA ,  Makoto YAMAKI ,  Youji KOZURU

IPC: H05K7/20

CPC classification number: H05K7/20336

Abstract: A wick sheet for a vapor chamber includes a first main body surface, a second main body surface located opposite the first main body surface, a frame body section, and a plurality of land sections apart from each other within the frame body section. A vapor path through which a vapor of a working fluid travels is between the plurality of land sections. A liquid flow channel section that communicates with the vapor path and through which the working fluid in a liquid form travels is at the second main body surface side of at least one of the land sections. A bridge that couples the land sections to the frame body section or that couples the land sections to each other is included. The bridge is reduced in thickness from at least one of the first main body surface side and the second main body surface side.

公开(公告)号：US20210208445A1

公开(公告)日：2021-07-08

申请号：US16761316

申请日：2018-11-02

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Takao IKEZAWA ,  Keisuke MIURA ,  Norio ISHII ,  Makoto YAMAKI ,  Yusuke NAKAMURA ,  Tomoya KAWASHIMA ,  Yusuke HAGIWARA ,  Satoru NISHIMA

IPC: G02F1/1333 ,  G02F1/1343 ,  B32B17/10 ,  B32B37/06

Abstract: A method for manufacturing a laminated glass whereby, in a laminated glass comprising a liquid crystal film sandwiched therein and having a three-dimensionally curved surface shape, the formation of wrinkles in the liquid crystal film can be suppressed; and a laminated glass which has a three-dimensionally curved surface shape and in which wrinkles in a liquid crystal film sandwiched therein are suppressed. The method for manufacturing the laminated glass comprises: a heat molding step for heating the liquid crystal film to a temperature higher than the glass transition point of the first base material layer and the second base material layer; and a bonding step for, after completing the heat molding step, heating the laminate, wherein the liquid crystal film is sandwiched between the first glass sheet and the second glass sheet, at a temperature lower than the glass transition point and bonding the same by applying a preset pressure.

公开(公告)号：US20250048591A1

公开(公告)日：2025-02-06

申请号：US18717091

申请日：2022-12-06

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Shinichiro TAKAHASHI ,  Kazunori ODA ,  Takayuki OTA ,  Makoto YAMAKI ,  Youji KOZURU ,  Toshihiko TAKEDA ,  Shinya KIURA ,  Takayuki TERAUCHI ,  Naohiro TAKAHASHI

IPC: H05K7/20 ,  F28D15/02

Abstract: A vapor chamber includes a body sheet, and a first sheet stacked on the body sheet. The body sheet includes a vapor flow channel portion through which vapor of a working fluid flows and a liquid flow channel portion which is in communication with the vapor flow channel portion and through which liquid of the working fluid flows. The vapor flow channel portion includes a vapor passage extending in a first direction. The first sheet includes a first sheet inner surface facing the body sheet and a first sheet groove provided in the first sheet inner surface. The first sheet groove is provided at a position of overlapping with the vapor passage in a plan view and extends in a direction intersecting with the first direction.

公开(公告)号：US20240353182A1

公开(公告)日：2024-10-24

申请号：US18291057

申请日：2022-07-20

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kazunori ODA ,  Shinichiro TAKAHASHI ,  Takayuki OTA ,  Makoto YAMAKI ,  Youji KOZURU

IPC: F28D15/04 ,  H05K7/20

CPC classification number: F28D15/04 ,  H05K7/20336

Abstract: A wick sheet for a vapor chamber includes a plurality of vapor passages through which vapor of a working fluid passes, and a plurality of liquid channels through which liquid of the working fluid passes. The plurality of liquid channels progressively separates from one side toward the other side in extension directions of the liquid channels. The liquid channel is branched to a plurality of first branched liquid channels at a first branched part located midway in the extension direction of the liquid channel.

公开(公告)号：US20240224469A1

公开(公告)日：2024-07-04

申请号：US18288603

申请日：2022-04-21

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kazunori ODA ,  Shinichiro TAKAHASHI ,  Takayuki OTA ,  Makoto YAMAKI ,  Youji KOZURU ,  Toshihiko TAKEDA

IPC: H05K7/20

CPC classification number: H05K7/20336

Abstract: A wick sheet for a vapor chamber includes a first main body surface, second main body surface, frame, and plurality of lands. A vapor passage that extends through from the first main body surface to the second main body surface. The vapor passage through which vapor of a working fluid passes is formed. A liquid channel that communicates with the vapor passage and through which a liquid working fluid passes is formed on the second main body surface side of the lands. An end of the vapor passage in an extension direction is in contact with at least one land, and a first main body surface-side channel that communicates with the vapor passage is formed in a connection region that is on the first main body surface side of the land and in which the end of the vapor passage in the extension direction is in contact with the land.

公开(公告)号：US20230067010A1

公开(公告)日：2023-03-02

申请号：US17977419

申请日：2022-10-31

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Keisuke MIURA ,  Yusuke HAGIWARA ,  Yasunori HAYASHIDA ,  Makoto YAMAKI

IPC: G02B5/30 ,  G02F1/13 ,  G02F1/03 ,  G02F1/1335 ,  G02F1/13357

Abstract: Provided is a light control film capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film 10 according to the present invention includes: a first electrode 22A and a second electrode 22B disposed facing each other; a light control material 14 disposed between the first electrode 22A and the second electrode 22B and changing the transmittance in accordance with the potential difference between the first electrode 22A and the second electrode 22B; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode 22A and the second electrode 22B.

公开(公告)号：US20200271964A1

公开(公告)日：2020-08-27

申请号：US16488807

申请日：2018-03-12

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Makoto YAMAKI ,  Tomoya KAWASHIMA

IPC: G02F1/137

Abstract: A light control film and a light control system, which not only simply change the amount of transmitted light but also can be used for a wider range of applications. This light control film includes a first electrode, a second electrode, a liquid crystal material, and a dichroic dye, and has a guest-host type liquid crystal layer in which light transmittance varies with the potential difference between the first electrode and the second electrode, wherein the liquid crystal layer has a first haze value when the potential difference is a first potential difference, has a second haze value when the potential difference is a second potential difference, and has a third haze value higher than at least the second haze value when the potential difference is a third potential difference between the first potential difference and the second potential difference.

公开(公告)号：US20250169041A1

公开(公告)日：2025-05-22

申请号：US18852633

申请日：2023-03-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Takayuki OTA ,  Toshihiko TAKEDA ,  Kazunori ODA ,  Makoto YAMAKI ,  Shinya KIURA ,  Masashi INAGAKI

IPC: H05K7/20

Abstract: A vapor chamber body sheet includes a first land portion that extends in a first direction, a second land portion that extends in a second direction that differs from the first direction, and a land intersection portion at which the first land portion and the second land portion intersect with each other. A first main flow groove that is located at the first land portion and a second main flow groove that is located at the second land portion are in communication with each other at the land intersection portion. A first space division portion is located on both sides of the second land portion in the second direction. A second land recessed portion that connects the first space division portion that is located on both sides is located on the second body surface at the second land portion.

公开(公告)号：US20240125559A1

公开(公告)日：2024-04-18

申请号：US18275632

申请日：2022-02-02

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Kazunori ODA ,  Shinichiro TAKAHASHI ,  Takayuki OTA ,  Toshihiko TAKEDA ,  Shinya KIURA ,  Makoto YAMAKI ,  Isao INOUE

IPC: F28D15/02 ,  H05K7/20

CPC classification number: F28D15/0233 ,  H05K7/2029

Abstract: A body sheet for a vapor chamber includes a first body surface, a second body surface disposed opposite to the first body surface, and a penetration space extending from the first body surface to the second body surface. The penetration space extends in a first direction in plan view. As seen in a cross section perpendicular to the first direction, the penetration space includes a first opening positioned on the first body surface and a second opening positioned on the second body surface. The second opening extends from a region overlapping with the first opening in plan view to a position overlapping with the first groove in plan view.

公开(公告)号：US20190146134A1

公开(公告)日：2019-05-16

申请号：US16310214

申请日：2017-06-16

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Keisuke MIURA ,  Yusuke HAGIWARA ,  Yasunori HAYASHIDA ,  Makoto YAMAKI

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/03

Abstract: A light control film is capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film includes: a first electrode and a second electrode disposed facing each other; a light control material disposed between the first electrode and the second electrode and changing the transmittance in accordance with the potential difference between the first electrode and the second electrode; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode and the second electrode.