Hai-Tai CHOI

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Gyeongsangbuk-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Lumbar support for vehicle seat
- Patent number 11,660,990
- Issue date May 30, 2023
- GUMCHANG. CO., LTD.
- Jae Yel Song
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hinge assembly for trunk lid of vehicle
- Patent number 11,261,638
- Issue date Mar 1, 2022
- GUMCHANG. CO., LTD.
- Jae-Yel Song
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
AUTOMATED SWIVEL SEAT AND CONTROL METHOD THEREOF
- Publication number 20250100425
- Publication date Mar 27, 2025
- GUMCHANG. CO., LTD.
- Jae Yel Song
- B60 - VEHICLES IN GENERAL
Information Patent Application
LUMBAR SUPPORT FOR VEHICLE SEAT
- Publication number 20230182630
- Publication date Jun 15, 2023
- GUMCHANG CO,LTD.
- Jae Yel SONG
- B60 - VEHICLES IN GENERAL
Information Patent Application
HINGE ASSEMBLY FOR TRUNK LID OF VEHICLE
- Publication number 20210246702
- Publication date Aug 12, 2021
- GUMCHANG. CO., LTD.
- Jae-Yel SONG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
LUMBAR SUPPORT FOR VEHICLE SEAT
- Publication number 20210197699
- Publication date Jul 1, 2021
- GUMCHANG CO., LTD.
- Jae Yel SONG
- B60 - VEHICLES IN GENERAL
Information Patent Application
SIDE BOLSTER TILTING SYSTEM OF VEHICULAR SEAT CUSHION
- Publication number 20200238878
- Publication date Jul 30, 2020
- GUMCHANG. CO., LTD.
- Jae-Yel SONG
- B60 - VEHICLES IN GENERAL
Information Patent Application
EXTENDABLE VEHICLE SEAT LUMBAR SUPPORT USING RACK AND PINION
- Publication number 20190225125
- Publication date Jul 25, 2019
- GUMCHANG. CO., LTD.
- Jae-Yel SONG
- B60 - VEHICLES IN GENERAL