公开(公告)号：US12153192B2

公开(公告)日：2024-11-26

申请号：US17430523

申请日：2020-02-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Junko Kurizoe ,  Toru Nakashiba ,  Shingo Maeda ,  Naoyuki Kondo

IPC: G02B1/04 ,  C08G59/22 ,  C08L63/00 ,  G02B6/02 ,  G02B6/12 ,  G02B6/122 ,  G02B6/13

Abstract: An optical-waveguide-clad composition includes a bisphenol type epoxy compound (A), and an epoxy compound (B) containing, in a molecule, at least one of a structure represented by the following formula (1) and a structure represented by the following formula (2), and having a molecular weight of 350 or higher. In the formula (1), R1 and R2 each independently represent a hydrogen atom or an alkyl group, and m represents 2 to 15. In the formula (2), R3 and R4 each independently represent a hydrogen atom or an alkyl group, and n represents 2 to 15.

公开(公告)号：US09568673B2

公开(公告)日：2017-02-14

申请号：US14764721

申请日：2013-12-03

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Junko Kurizoe ,  Naoyuki Kondo ,  Toru Nakashiba ,  Shingo Yoshioka ,  Shinji Hashimoto

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/138 ,  G02B1/12 ,  G02B6/132

CPC classification number: G02B6/122 ,  G02B1/12 ,  G02B6/1221 ,  G02B6/132 ,  G02B6/138

Abstract: The present invention relates to a dry film for optical waveguides, obtained through sequential stacking of a carrier film, a plating adhesion layer, an uncured cladding layer and a cover film. Solid microparticles are dispersed in a resin composition that constitutes the plating adhesion layer.

Abstract translation: 本发明涉及通过载体膜，电镀粘附层，未固化覆层和覆盖膜的顺序层叠获得的用于光波导的干膜。 固体微粒分散在构成电镀粘附层的树脂组合物中。

公开(公告)号：US09448334B2

公开(公告)日：2016-09-20

申请号：US14412424

申请日：2013-07-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoyuki Kondo ,  Junko Kurizoe ,  Shinji Hashimoto ,  Toru Nakashiba

IPC: G02B1/04

CPC classification number: G02B1/048 ,  C08F220/28 ,  C08G59/1466 ,  C09D133/068 ,  G02B6/1221 ,  G02B6/138 ,  Y10T428/31511 ,  C08F2220/281 ,  C08F2220/325 ,  C08L63/00

Abstract: The present invention provides an optical waveguide excellent in all of transparency, a bending property and heat resistance and a dry film for manufacturing an optical waveguide. A clad layer of the optical waveguide according to the present invention is formed by using a dry film containing a polymer comprising at least a (meth)acrylate monomer with an epoxy group and a (meth)acrylate monomer without an epoxy group; and cationic or anionic curing initiator.

Abstract translation: 本发明提供透光性，弯曲性和耐热性全部优异的光波导和用于制造光波导的干膜。 根据本发明的光波导的包层通过使用含有至少具有环氧基的（甲基）丙烯酸酯单体的聚合物和不含环氧基的（甲基）丙烯酸酯单体）的干膜形成， 和阳离子或阴离子固化引发剂。

公开(公告)号：US20150234095A1

公开(公告)日：2015-08-20

申请号：US14412424

申请日：2013-07-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoyuki Kondo ,  Junko Kurizoe ,  Shinji Hashimoto ,  Toru Nakashiba

IPC: G02B1/04

CPC classification number: G02B1/048 ,  C08F220/28 ,  C08G59/1466 ,  C09D133/068 ,  G02B6/1221 ,  G02B6/138 ,  Y10T428/31511 ,  C08F2220/281 ,  C08F2220/325 ,  C08L63/00

Abstract: The present invention provides an optical waveguide excellent in all of transparency, a bending property and heat resistance and a dry film for manufacturing an optical waveguide. A clad layer of the optical waveguide according to the present invention is formed by using a dry film containing a polymer comprising at least a (meth)acrylate monomer with an epoxy group and a (meth)acrylate monomer without an epoxy group; and cationic or anionic curing initiator.

Abstract translation: 本发明提供透光性，弯曲性和耐热性全部优异的光波导和用于制造光波导的干膜。 根据本发明的光波导的包层通过使用含有至少具有环氧基的（甲基）丙烯酸酯单体的聚合物和不含环氧基的（甲基）丙烯酸酯单体）的干膜形成， 和阳离子或阴离子固化引发剂。

公开(公告)号：US10393963B2

公开(公告)日：2019-08-27

申请号：US16273925

申请日：2019-02-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Naoyuki Kondou ,  Shinji Hashimoto ,  Toru Nakashiba ,  Shingo Maeda ,  Seiji Takagi

IPC: G02B6/132 ,  C08L63/08 ,  G02B1/10 ,  C08L63/00 ,  G02B6/122 ,  G02B6/12

Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 μm.

公开(公告)号：US11680163B2

公开(公告)日：2023-06-20

申请号：US16755284

申请日：2018-10-11

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Junko Kurizoe ,  Naoyuki Kondou ,  Toru Nakashiba ,  Shingo Maeda

IPC: C08L63/00 ,  G02B1/04 ,  G02B6/122

CPC classification number: C08L63/00 ,  G02B1/046 ,  G02B6/1221 ,  C08L2203/20 ,  C08L2205/025

Abstract: Provided is a resin composition for optical waveguide cores, the resin composition including liquid epoxy resin, and solid epoxy resin, in which a coefficient of variation calculated from a weighted average value of a refractive index of the liquid epoxy resin and a refractive index of the solid epoxy resin is 2.10% or less.

公开(公告)号：US11378740B2

公开(公告)日：2022-07-05

申请号：US16759637

申请日：2018-11-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shingo Maeda ,  Naoyuki Kondou ,  Toru Nakashiba ,  Junko Kurizoe

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/138 ,  G02B6/43 ,  H04B10/50

Abstract: An optical waveguide is provided and includes: a core forming layer with a high refractive index; and a first clad layer with a low refractive index, bonded to a first main surface of the core forming layer. The core forming layer is provided in its plane direction with a core portion, lateral clad portions each having one side adjacent to a corresponding side of the core portion, and high refractive index portions each adjacent to the other side of a corresponding one of the lateral clad portions. The core portion is provided in its plane direction with a central region, and GI regions in each of which a refractive index continuously decreases from the central region toward an interface with the corresponding one of the lateral clad portions. The lateral clad portions each include a region having a constant refractive index.

公开(公告)号：US10247883B2

公开(公告)日：2019-04-02

申请号：US15749525

申请日：2016-08-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoyuki Kondou ,  Shinji Hashimoto ,  Toru Nakashiba ,  Shingo Maeda ,  Seiji Takagi

IPC: G02B6/132 ,  C08L63/00 ,  G02B6/12 ,  C08L63/08 ,  G02B1/10 ,  G02B6/122

Abstract: A composition for an optical waveguide is cured into a sheet to give a cured product. A difference in light transmittance with respect to light having a wavelength of 450 nm is 15% or less between this cured product and this cured product after retention in atmosphere at 175° C. for 40 hours, the light transmittance being calculated in terms of the cured product at a thickness of 50 μm.

公开(公告)号：US09535216B2

公开(公告)日：2017-01-03

申请号：US14651826

申请日：2014-09-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shingo Maeda ,  Naoyuki Kondo ,  Shinji Hashimoto ,  Toru Nakashiba ,  Junko Kurizoe

IPC: G02B6/132 ,  G02B1/14 ,  G02B6/122 ,  G02B6/138 ,  G02B6/12

CPC classification number: G02B6/132 ,  G02B1/14 ,  G02B6/1221 ,  G02B6/138 ,  G02B2006/12069

Abstract: The present invention relates to a dry film for an optical waveguide which has a carrier base material, a resin layer for an optical waveguide that can be cured by active energy ray or heat, and a protective film. The surface of the protective film that is in contact with the resin layer for an optical waveguide is a roughened surface.

Abstract translation: 本发明涉及一种用于光波导的干膜，其具有载体基材，可通过活性能量射线或热量固化的光波导用树脂层和保护膜。 与光波导用树脂层接触的保护膜的表面为粗糙面。