Invention Grant
- Patent Title: Composition for optical waveguide, dry film for optical waveguide and optical waveguide using epoxies
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Application No.: US16273925Application Date: 2019-02-12
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Publication No.: US10393963B2Publication Date: 2019-08-27
- Inventor: Naoyuki Kondou , Shinji Hashimoto , Toru Nakashiba , Shingo Maeda , Seiji Takagi
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2015-171641 20150901
- Main IPC: G02B6/132
- 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.
Public/Granted literature
- US20190212495A1 COMPOSITION FOR OPTICAL WAVEGUIDE, DRY FILM FOR OPTICAL WAVEGUIDE AND OPTICAL WAVEGUIDE USING EPOXIES Public/Granted day:2019-07-11
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