Keisuke FUKUHARA

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Taito-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light control sheet and method of producing light control sheet
- Patent number 12,044,940
- Issue date Jul 23, 2024
- TOPPAN INC.
- Keisuke Fukuhara
- G02 - OPTICS
Information Patent Grant
Light control sheet and light control device
- Patent number 11,822,172
- Issue date Nov 21, 2023
- TOPPAN INC.
- Sohei Abe
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT CONTROL SHEET AND METHOD OF PRODUCING LIGHT CONTROL SHEET
- Publication number 20230288761
- Publication date Sep 14, 2023
- TOPPAN INC.
- Keisuke FUKUHARA
- G02 - OPTICS
Information Patent Application
LIGHT CONTROL SHEET AND LIGHT CONTROL DEVICE
- Publication number 20220082881
- Publication date Mar 17, 2022
- TOPPAN INC.
- Sohei ABE
- G02 - OPTICS