OPTISCHER FILM

European patent · EP4184225 · In force

Register entry

Publication number
EP4184225
Application number
EP21842442
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
Jul 9, 2021
Published
May 24, 2023
Granted
Dec 3, 2025
Protection ends at the latest
Jul 8, 2041
Next annual fee due
Jul 31, 2026
IPC classes
G02B 5/30 (2006.01)
G02B 1/14 (2015.01)
Priority
JP 2020122713 17.07.2020
PCT application
PCT/JP2021/025892 09.07.2021
PCT publication
WO2022/014478 20.01.2022
Filing language
Japanese
Source
Swissreg

History

What the Federal Institute of Intellectual Property published about this title, newest first.

  1. Oct 14, 2026

    Change

    Published in Swissreg on 14.10.2026

  2. Dec 3, 2025

    Granted

    Specification status
    Non-published patent application → Granted patent
    Status of protective title
    Initiated → Active

    Published in Swissreg on 03.12.2025

Parties

Holder

MITSUBISHI GAS CHEMICAL COMPANY, INC.

5-2, Marunouchi 2-chome, Chiyoda-ku Tokyo 100-8324, JP

Inventor

KATO, Noriyuki

Tokyo 100-8324, JP

IKEDA, Shinya

Niigata-shi, Niigata 950-3121, JP

HIRAKAWA, Manabu

Hiratsuka-shi, Kanagawa 254-0016, JP

The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.