Yukio YOSHIDA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Abrasive article
- Patent number 8,308,532
- Issue date Nov 13, 2012
- Kovax Corporation
- Akira Usui
- B24 - GRINDING POLISHING
Information Patent Grant
Method of manufacturing abrasive sheet with thin resin film
- Patent number 6,183,677
- Issue date Feb 6, 2001
- Kovax Corporation
- Akira Usui
- B32 - LAYERED PRODUCTS
Information Patent Grant
Abrasive sheet with thin resin film
- Patent number 5,928,760
- Issue date Jul 27, 1999
- Kovax Corporation
- Akira Usui
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
SHEET-LIKE ABRASIVE ARTICLE
- Publication number 20250235985
- Publication date Jul 24, 2025
- KOVAX CORPORATION
- Norio KURAMOCHI
- B24 - GRINDING POLISHING
Information Patent Application
ABRASIVE ARTICLE
- Publication number 20100112920
- Publication date May 6, 2010
- KOVAX CORPORATION
- Akira USUI
- B24 - GRINDING POLISHING