Yasuyoshi Iwamoto

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Retroreflective sheet
- Patent number 7,906,193
- Issue date Mar 15, 2011
- Kiwa Chemical Industry Co., Ltd.
- Shigeo Yukawa
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Retroreflection sheet
- Publication number 20060057323
- Publication date Mar 16, 2006
- KIWA CHEMICAL INDUSTRY CO., LTD.
- Shigeo Yukawa
- G02 - OPTICS